This page contains information about which telephone companies the various 08003 numbers are allocated to.
| First Digits | Status | Communications Provider | Use | Notes | Change |
|---|---|---|---|---|---|
| 0800 300 | Allocated (Closed Range) | BT | Freephone Numbers | 9 Digit Numbers | - |
| 0800 3010 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3011 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3012 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3013 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3014 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3015 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3016 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3017 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3018 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3019 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3020 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3021 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3022 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3023 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3024 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3025 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3026 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3027 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3028 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3029 | Allocated | Vodafone Ltd (C&W) | Freephone Numbers | 10 digit numbers | 02/08/2013 |
| 0800 3030 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3031 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3032 | Allocated | Premier Voicemail Ltd | Freephone Numbers | 10 digit numbers | 14/04/2009 |
| 0800 3033 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3034 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3035 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3036 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3037 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3038 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3039 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3040 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 29/02/2000 |
| 0800 3041 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3042 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3043 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 29/02/2000 |
| 0800 3044 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3045 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 29/02/2000 |
| 0800 3046 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3047 | Allocated | Club Communications Ltd | Freephone Numbers | 10 digit numbers | 01/07/2000 |
| 0800 3048 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3049 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3050 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3051 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3052 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3053 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3054 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3055 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3056 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3057 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3058 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3059 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3060 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3061 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3062 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3063 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3064 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3065 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3066 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3067 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3068 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3069 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3070 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3071 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3072 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3073 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3074 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3075 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3076 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3077 | Allocated | Cirrus Response Limited | Freephone Numbers | 10 digit numbers | 10/01/2013 |
| 0800 3078 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3079 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3080 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3081 | Allocated | TalkTalk Communications Limited | Freephone Numbers | 10 digit numbers | 02/02/2007 |
| 0800 3082 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3083 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3084 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3085 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3086 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3087 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3088 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3089 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3090 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3091 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3092 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3093 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3094 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3095 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3096 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3097 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3098 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3099 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3100 | Allocated | i-Net Communications Group Plc | Freephone Numbers | 10 digit numbers | 03/11/2010 |
| 0800 3101 | Allocated | Numbergroup Network Ltd | Freephone Numbers | 10 digit numbers | 19/10/2010 |
| 0800 3102 | Allocated | Numbergroup Network Ltd | Freephone Numbers | 10 digit numbers | 19/10/2010 |
| 0800 3103 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3104 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3105 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3106 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3107 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3108 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3109 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3110 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3111 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3112 | Allocated | Callagenix Ltd | Freephone Numbers | 10 digit numbers | 18/05/2005 |
| 0800 3113 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3114 | Allocated | Tuxtel Ltd | Freephone Numbers | 10 digit numbers | 06/11/2009 |
| 0800 3115 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3116 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3117 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3118 | Allocated | TTNC Limited | Freephone Numbers | 10 digit numbers | 08/11/2007 |
| 0800 3119 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3120 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3122 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3123 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3124 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3126 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3127 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3128 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3129 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3130 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3131 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3132 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3133 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3134 | Allocated | BT | Freephone Numbers | 10 digit numbers | 29/03/2006 |
| 0800 3135 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3136 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3137 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3138 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3139 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3140 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3141 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3142 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3143 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3144 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3145 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3146 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3147 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3148 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3149 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3150 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3151 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3152 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3153 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3154 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3155 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3156 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3157 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3158 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3159 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 316 | Allocated | Vodafone Ltd (Energis) | Freephone Numbers | 10 Digit Numbers | 30/05/2006 |
| 0800 317 | Allocated (Closed Range) | BT | Freephone Numbers | 9 Digit Numbers | - |
| 0800 318 | Allocated (Closed Range) | BT | Freephone Numbers | 9 Digit Numbers | - |
| 0800 3190 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3191 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3192 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3193 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3194 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 29/02/2000 |
| 0800 3195 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3196 | Allocated | Spitfire Network Services Ltd | Freephone Numbers | 10 digit numbers | 27/10/2000 |
| 0800 3197 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3198 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3199 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3201 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3202 | Allocated | Numbergroup Network Ltd | Freephone Numbers | 10 digit numbers | 11/07/2011 |
| 0800 3203 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3204 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3205 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3206 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3207 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3208 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3209 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3210 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3211 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3212 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3213 | Allocated | Vodafone Ltd (C&W) | Freephone Numbers | 10 digit numbers | 24/02/2006 |
| 0800 3214 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3215 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3216 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3217 | Allocated | Barritel Limited | Freephone Numbers | 10 digit numbers | 14/12/2001 |
| 0800 3218 | Allocated | Griffin Information Systems Ltd | Freephone Numbers | 10 digit numbers | 24/05/2004 |
| 0800 3219 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3220 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3221 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3222 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3223 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3224 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3225 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3226 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3227 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3228 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3229 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3230 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3231 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3232 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3233 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3234 | Allocated | BT | Freephone Numbers | 10 digit numbers | 29/03/2006 |
| 0800 3235 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3236 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3237 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3238 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3239 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3240 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3241 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3242 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3243 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3244 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3245 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3246 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3247 | Allocated | Callagenix Ltd | Freephone Numbers | 10 digit numbers | 29/09/2006 |
| 0800 3248 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3249 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3250 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3253 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3254 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3255 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3256 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3257 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3258 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3259 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3260 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3261 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3262 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3263 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3264 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3265 | Allocated | Affiniti Integrated Solutions Ltd | Freephone Numbers | 10 digit numbers | 16/01/2008 |
| 0800 3266 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3267 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3268 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3269 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3270 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3271 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3272 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3273 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3274 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3276 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3277 | Allocated | Magrathea Telecommunications Limited | Freephone Numbers | 10 digit numbers | 27/03/2008 |
| 0800 3278 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3279 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 328 | Allocated | BT | Freephone Numbers | 10 Digit Numbers | 26/02/1998 |
| 0800 3290 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 14/01/2003 |
| 0800 3291 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 14/01/2003 |
| 0800 3292 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 14/01/2003 |
| 0800 3293 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 14/01/2003 |
| 0800 3294 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3295 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 14/01/2003 |
| 0800 3296 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 14/01/2003 |
| 0800 3297 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 14/01/2003 |
| 0800 3298 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 14/01/2003 |
| 0800 3299 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 14/01/2003 |
| 0800 3300 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3301 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3302 | Allocated | Numbers Telecom Limited | Freephone Numbers | 10 digit numbers | 12/07/2012 |
| 0800 3303 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3304 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3305 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3306 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3307 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3308 | Allocated | Call Stream Limited | Freephone Numbers | 10 digit numbers | 21/12/2005 |
| 0800 3309 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3310 | Allocated | Sigma Voice Solutions Ltd | Freephone Numbers | 10 digit numbers | 31/12/2007 |
| 0800 3311 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 29/02/2000 |
| 0800 3312 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 29/02/2000 |
| 0800 3313 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 29/02/2000 |
| 0800 3314 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 29/02/2000 |
| 0800 3315 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3316 | Allocated | BT | Freephone Numbers | 10 digit numbers | 28/11/2007 |
| 0800 3317 | Allocated | Affiniti Integrated Solutions Ltd | Freephone Numbers | 10 digit numbers | 16/01/2008 |
| 0800 3318 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3319 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 29/02/2000 |
| 0800 3320 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3322 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3323 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3324 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3325 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3326 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3327 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3328 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3329 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 333 | Allocated (Closed Range) | BT | Freephone Numbers | 9 Digit Numbers | - |
| 0800 3340 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3341 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3343 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3344 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3345 | Allocated | Telecoms World Plc | Freephone Numbers | 10 digit numbers | 07/12/2007 |
| 0800 3346 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3347 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3348 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3349 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3350 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3351 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3352 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3353 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3354 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3355 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3356 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3357 | Allocated | TTNC Limited | Freephone Numbers | 10 digit numbers | 04/05/2006 |
| 0800 3358 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3359 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3360 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3361 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3362 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 14/01/2003 |
| 0800 3363 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 14/01/2003 |
| 0800 3365 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3366 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 14/01/2003 |
| 0800 3367 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 14/01/2003 |
| 0800 3368 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 14/01/2003 |
| 0800 3369 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3370 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3371 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3372 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3373 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 29/02/2000 |
| 0800 3374 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 29/02/2000 |
| 0800 3375 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 29/02/2000 |
| 0800 3376 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 29/02/2000 |
| 0800 3377 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 29/02/2000 |
| 0800 3378 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3379 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3380 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3381 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3382 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3383 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3384 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3385 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3386 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3387 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3388 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3389 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3390 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3391 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3392 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3393 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3394 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3395 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3396 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3397 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3398 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3399 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3400 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3401 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3402 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3403 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3405 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3406 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3407 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3408 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3409 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3410 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3411 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3412 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3413 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3414 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3415 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3416 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3417 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3418 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3419 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3420 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3421 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3422 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3423 | Allocated | Vodafone Ltd (Thus) | Freephone Numbers | 10 digit numbers | 01/02/2006 |
| 0800 3424 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3425 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3426 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3427 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3428 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3429 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3430 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3431 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3433 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3434 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3435 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3436 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3437 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3438 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3439 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3441 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3442 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3443 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3444 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3445 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3446 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3447 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3448 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3449 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3450 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3451 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3452 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3453 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3454 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3455 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3456 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3457 | Allocated | BT | Freephone Numbers | 10 digit numbers | 03/11/2004 |
| 0800 3458 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3459 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3460 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3461 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3462 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3463 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3464 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3465 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3467 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3468 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3469 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3470 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3471 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3472 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3473 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3474 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3475 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3476 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3477 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3478 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3479 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3480 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3481 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3482 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3483 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3485 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3486 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3487 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3488 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3489 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3490 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3491 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3492 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3493 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3494 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3495 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3496 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3497 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3498 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3499 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3500 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3502 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3503 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3504 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3505 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3506 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3507 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3508 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3509 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3510 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3511 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3512 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3513 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 29/02/2000 |
| 0800 3514 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3515 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 29/02/2000 |
| 0800 3516 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3517 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3518 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3519 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3520 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3521 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3522 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3524 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3525 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3526 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3527 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3528 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3529 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3530 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3531 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3532 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3533 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3534 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3535 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3536 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3537 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3538 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3539 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3540 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3541 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3542 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3543 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 14/01/2003 |
| 0800 3544 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 14/01/2003 |
| 0800 3545 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3546 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3547 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3548 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 14/01/2003 |
| 0800 3549 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 355 | Allocated | TalkTalk Communications Limited | Freephone Numbers | 10 Digit Numbers | 12/06/2006 |
| 0800 3561 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3562 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3563 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3564 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3565 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3566 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3567 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3568 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3569 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3570 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3571 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3572 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3573 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3574 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3575 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3576 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3577 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3578 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3579 | Allocated | TTNC Limited | Freephone Numbers | 10 digit numbers | 19/04/2006 |
| 0800 358 | Allocated | COLT Technology Services | Freephone Numbers | 10 Digit Numbers | 17/01/1996 |
| 0800 3590 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3591 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3592 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3593 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3594 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3595 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3596 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3597 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3598 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3599 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3600 | Allocated | Orbtalk Limited | Freephone Numbers | 10 digit numbers | 17/07/2012 |
| 0800 3601 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3602 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3603 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3604 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3605 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3606 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3607 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3608 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3609 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 361 | Allocated | Transaction Network Services (UK) Limited | Freephone Numbers | 10 Digit Numbers | 28/02/2000 |
| 0800 3620 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3621 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3622 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3623 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3624 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3625 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3626 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3627 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3628 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3629 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3630 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3631 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3632 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3633 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3634 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3635 | Allocated | BT | Freephone Numbers | 10 digit numbers | 29/03/2006 |
| 0800 3636 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3637 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3640 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3641 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3642 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3643 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3644 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3645 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3646 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3647 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3648 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3649 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3650 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3651 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3652 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3653 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3654 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3655 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3656 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3657 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3658 | Allocated | Tripudio Limited | Freephone Numbers | 10 digit numbers | 15/09/2014 |
| 0800 3659 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3660 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3661 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3662 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3663 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3664 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3665 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3666 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3667 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3668 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3669 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3670 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3671 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3672 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3673 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3674 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3675 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3676 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3677 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3678 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3679 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3680 | Allocated | COLT Technology Services | Freephone Numbers | 10 digit numbers | 01/08/2007 |
| 0800 3681 | Allocated | COLT Technology Services | Freephone Numbers | 10 digit numbers | 06/08/2007 |
| 0800 3682 | Allocated | COLT Technology Services | Freephone Numbers | 10 digit numbers | 06/08/2007 |
| 0800 3683 | Allocated | COLT Technology Services | Freephone Numbers | 10 digit numbers | 06/08/2007 |
| 0800 3684 | Allocated | COLT Technology Services | Freephone Numbers | 10 digit numbers | 06/08/2007 |
| 0800 3685 | Allocated | COLT Technology Services | Freephone Numbers | 10 digit numbers | 06/08/2007 |
| 0800 3686 | Allocated | COLT Technology Services | Freephone Numbers | 10 digit numbers | 10/01/2008 |
| 0800 3687 | Allocated | COLT Technology Services | Freephone Numbers | 10 digit numbers | 10/01/2008 |
| 0800 3688 | Allocated | COLT Technology Services | Freephone Numbers | 10 digit numbers | 10/01/2008 |
| 0800 3689 | Allocated | COLT Technology Services | Freephone Numbers | 10 digit numbers | 10/01/2008 |
| 0800 3690 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3692 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3693 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3694 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3695 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3696 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3697 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3698 | Allocated | Affiniti Integrated Solutions Ltd | Freephone Numbers | 10 digit numbers | 21/02/2006 |
| 0800 3699 | Allocated | London Central Communications Ltd | Freephone Numbers | 10 digit numbers | 11/12/2006 |
| 0800 3700 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3701 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3702 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3703 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3704 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3705 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3706 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3707 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3708 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3709 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 371 | Allocated (Closed Range) | BT | Freephone Numbers | 9 Digit Numbers | - |
| 0800 3720 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3721 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3722 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3723 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3724 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3725 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3726 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3727 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3728 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3729 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 373 | Allocated (Closed Range) | BT | Freephone Numbers | 9 Digit Numbers | - |
| 0800 374 | Allocated (Closed Range) | BT | Freephone Numbers | 9 Digit Numbers | - |
| 0800 3750 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3751 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3752 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3753 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3754 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3755 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3756 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3757 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3759 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 376 | Allocated | Verizon UK Ltd | Freephone Numbers | 10 Digit Numbers | 24/07/1995 |
| 0800 3770 | Allocated | Globecom International Limited | Freephone Numbers | 10 digit numbers | 19/03/2009 |
| 0800 3771 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3772 | Allocated | LegendTel LLC | Freephone Numbers | 10 digit numbers | 19/03/2009 |
| 0800 3773 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 14/01/2003 |
| 0800 3774 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3775 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 14/01/2003 |
| 0800 3776 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 14/01/2003 |
| 0800 3777 | Allocated | TalkTalk Communications Limited | Freephone Numbers | 10 digit numbers | 29/06/2006 |
| 0800 3778 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3779 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 378 | Allocated (Closed Range) | BT | Freephone Numbers | 9 Digit Numbers | - |
| 0800 3790 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3791 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3792 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3793 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3794 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3795 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3796 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3797 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3798 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3799 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3800 | Allocated | TalkTalk Communications Limited | Freephone Numbers | 10 digit numbers | 20/02/2006 |
| 0800 3801 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3802 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3803 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 14/01/2003 |
| 0800 3804 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3805 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3806 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 14/01/2003 |
| 0800 3807 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3808 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 14/01/2003 |
| 0800 3809 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3810 | Free | - | Freephone Numbers | 10 Digit Numbers | - |
| 0800 3811 | Allocated | Callagenix Ltd | Freephone Numbers | 10 Digit Numbers | 29/09/2006 |
| 0800 3812 | Free | - | Freephone Numbers | 10 Digit Numbers | - |
| 0800 3813 | Free | - | Freephone Numbers | 10 Digit Numbers | - |
| 0800 3814 | Free | - | Freephone Numbers | 10 Digit Numbers | - |
| 0800 3815 | Free | - | Freephone Numbers | 10 Digit Numbers | - |
| 0800 3816 | Free | - | Freephone Numbers | 10 Digit Numbers | - |
| 0800 3817 | Free | - | Freephone Numbers | 10 Digit Numbers | - |
| 0800 3818 | Free | - | Freephone Numbers | 10 Digit Numbers | - |
| 0800 3819 | Free | - | Freephone Numbers | 10 Digit Numbers | - |
| 0800 3820 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3821 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3822 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3823 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3824 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3825 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3826 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3827 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3828 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3829 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3830 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3831 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3832 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3833 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3834 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3835 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3836 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3837 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3838 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3839 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3840 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3841 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3842 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3843 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3844 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3845 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3846 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3847 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3848 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3849 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 385 | Allocated | Virgin Media Wholesale Limited | Freephone Numbers | 10 Digit Numbers | 30/10/2009 |
| 0800 3860 | Allocated | NG Network Consultancy Ltd | Freephone Numbers | 10 digit numbers | 02/07/2010 |
| 0800 3861 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3862 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3863 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3864 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3865 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3867 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3868 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3869 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 387 | Allocated (Closed Range) | BT | Freephone Numbers | 9 Digit Numbers | - |
| 0800 3881 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3882 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3883 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3884 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3885 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3886 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3887 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3888 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3889 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 389 | Allocated | BT | Freephone Numbers | 10 Digit Numbers | 17/04/1998 |
| 0800 3900 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3901 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3902 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3903 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3904 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3905 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3906 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3907 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3908 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3909 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3910 | Free | - | Freephone Numbers | 10 Digit Numbers | - |
| 0800 3911 | Free | - | Freephone Numbers | 10 Digit Numbers | - |
| 0800 3912 | Free | - | Freephone Numbers | 10 Digit Numbers | - |
| 0800 3913 | Free | - | Freephone Numbers | 10 Digit Numbers | - |
| 0800 3914 | Free | - | Freephone Numbers | 10 Digit Numbers | - |
| 0800 3915 | Free | - | Freephone Numbers | 10 Digit Numbers | - |
| 0800 3916 | Free | - | Freephone Numbers | 10 Digit Numbers | - |
| 0800 3917 | Free | - | Freephone Numbers | 10 Digit Numbers | - |
| 0800 3918 | Free | - | Freephone Numbers | 10 Digit Numbers | - |
| 0800 3919 | Free | - | Freephone Numbers | 10 Digit Numbers | - |
| 0800 3920 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3921 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3922 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3923 | Allocated | Excell Group Plc | Freephone Numbers | 10 digit numbers | 26/09/2006 |
| 0800 3924 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3925 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3926 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3927 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3928 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3929 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 393 | Allocated (Closed Range) | BT | Freephone Numbers | 9 Digit Numbers | - |
| 0800 3940 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3941 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3942 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3943 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3944 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3945 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3946 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3947 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3948 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3949 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3950 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3951 | Allocated | Alphatalk Ltd | Freephone Numbers | 10 digit numbers | 20/02/2007 |
| 0800 3952 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3953 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3954 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3955 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3956 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3957 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3958 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3960 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 29/02/2000 |
| 0800 3961 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3962 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 29/02/2000 |
| 0800 3963 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3964 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3965 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3966 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 29/02/2000 |
| 0800 3967 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3968 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3970 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3971 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3972 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3973 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3974 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3975 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3976 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3977 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3978 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3979 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3980 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3981 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3982 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3983 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3984 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3985 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3986 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3987 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3988 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 22/01/2003 |
| 0800 3989 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3990 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3991 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3992 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3993 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |
| 0800 3994 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3995 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3996 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3997 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3998 | Free | - | Freephone Numbers | 10 digit numbers | - |
| 0800 3999 | Allocated (Closed Range) | BT | Freephone Numbers | 9 digit numbers | 24/04/2001 |