Code allocations for the 01821 STD code

Summary

  • Status
    • Free for National Dialling Only: 20
    • Protected: 365
    • Allocated: 87
    • Free: 6
  • Operators : 77
  • Latest change : July 2012
Click here for Status definitions
Have you received a call from a number beginning 01821? Get information on a full number beginning 01821, using our full UK number search.
Find out about the location and calling costs for 01821 numbers on our 01821 code page.

This page contains information about which telephone companies the various 01821 numbers are allocated to.

First Digits Status Communications Provider Number Length Notes Change
01821 00 Free for National Dialling Only - (0)+10 - -
01821 01 Free for National Dialling Only - (0)+10 - -
01821 02 Free for National Dialling Only - (0)+10 - -
01821 03 Free for National Dialling Only - (0)+10 - -
01821 04 Free for National Dialling Only - (0)+10 - -
01821 05 Free for National Dialling Only - (0)+10 - -
01821 06 Free for National Dialling Only - (0)+10 - -
01821 07 Free for National Dialling Only - (0)+10 - -
01821 08 Free for National Dialling Only - (0)+10 - -
01821 09 Free for National Dialling Only - (0)+10 - -
01821 10 Free for National Dialling Only - (0)+10 - -
01821 11 Free for National Dialling Only - (0)+10 - -
01821 12 Free for National Dialling Only - (0)+10 - -
01821 13 Free for National Dialling Only - (0)+10 - -
01821 14 Free for National Dialling Only - (0)+10 - -
01821 15 Free for National Dialling Only - (0)+10 - -
01821 16 Free for National Dialling Only - (0)+10 - -
01821 17 Free for National Dialling Only - (0)+10 - -
01821 18 Free for National Dialling Only - (0)+10 - -
01821 19 Free for National Dialling Only - (0)+10 - -
01821 200 Protected - 4+6 - -
01821 201 Protected - 4+6 - -
01821 202 Protected - 4+6 - -
01821 203 Protected - 4+6 - -
01821 204 Protected - 4+6 - -
01821 205 Protected - 4+6 - -
01821 206 Protected - 4+6 - -
01821 207 Allocated Premium O Limited 4+6 - 08/10/2012
01821 208 Protected - 4+6 - -
01821 209 Protected - 4+6 - -
01821 21 Allocated InTechnology Plc 4+6 F-Digit '2' 26/02/2008
01821 22 Allocated Net-Work Internet Ltd 4+6 F-Digit '2' 31/01/2008
01821 23 Allocated Telecom2 Ltd 4+6 F-Digit '6' 10/09/2009
01821 24 Allocated Timico Limited 4+6 F-Digit '8' 23/05/2008
01821 250 Allocated Voxbone SA 4+6 - 12/12/2011
01821 251 Protected - 4+6 - -
01821 252 Protected - 4+6 - -
01821 253 Protected - 4+6 - -
01821 254 Protected - 4+6 - -
01821 255 Protected - 4+6 - -
01821 256 Protected - 4+6 - -
01821 257 Protected - 4+6 - -
01821 258 Protected - 4+6 - -
01821 259 Protected - 4+6 - -
01821 26 Allocated Starcomm Ltd 4+6 F-Digit '0' 01/10/2008
01821 27 Allocated Served Up Limited. 4+6 F-Digit '5' 20/10/2008
01821 28 Allocated Solutios Limited 4+6 F-Digit '2' 26/11/2008
01821 29 Allocated Andrews & Arnold (Numbers) Ltd 4+6 F-Digit '0' 02/04/2009
01821 300 Protected - 4+6 - -
01821 301 Protected - 4+6 - -
01821 302 Protected - 4+6 - -
01821 303 Protected - 4+6 - -
01821 304 Protected - 4+6 - -
01821 305 Protected - 4+6 - -
01821 306 Protected - 4+6 - -
01821 307 Protected - 4+6 - -
01821 308 Protected - 4+6 - -
01821 309 Protected - 4+6 - -
01821 310 Allocated Vodafone Ltd (Thus) 4+6 - 05/01/1996
01821 311 Allocated Vodafone Ltd (Thus) 4+6 - 05/01/1996
01821 312 Protected - 4+6 - -
01821 313 Protected - 4+6 - -
01821 314 Protected - 4+6 - -
01821 315 Protected - 4+6 - -
01821 316 Allocated Vodafone Ltd (Thus) 4+6 - 05/01/1996
01821 317 Allocated Vodafone Ltd (Thus) 4+6 - 05/01/1996
01821 318 Allocated Vodafone Ltd (Thus) 4+6 - 05/01/1996
01821 319 Allocated Vodafone Ltd (Thus) 4+6 - 05/01/1996
01821 320 Protected - 4+6 - -
01821 321 Protected - 4+6 - -
01821 322 Protected - 4+6 - -
01821 323 Protected - 4+6 - -
01821 324 Protected - 4+6 - -
01821 325 Protected - 4+6 - -
01821 326 Protected - 4+6 - -
01821 327 Protected - 4+6 - -
01821 328 Protected - 4+6 - -
01821 329 Protected - 4+6 - -
01821 33 Allocated TTNC Limited 4+6 F-Digits '0,1,2,3,4,5,6,7,8,9 10/10/2006
01821 34 Allocated Danemere Street Creative 4+6 - 24/06/2005
01821 350 Allocated Inclarity Communications Ltd 4+6 - 07/06/2006
01821 351 Allocated Inclarity Communications Ltd 4+6 - 07/06/2006
01821 352 Allocated Inclarity Communications Ltd 4+6 - 07/06/2006
01821 353 Protected - 4+6 - -
01821 354 Protected - 4+6 - -
01821 355 Allocated Inclarity Communications Ltd 4+6 - 07/06/2006
01821 356 Protected - 4+6 - -
01821 357 Protected - 4+6 - -
01821 358 Protected - 4+6 - -
01821 359 Protected - 4+6 - -
01821 36 Allocated TelNG Limited 4+6 F-Digit '2' 28/02/2007
01821 370 Protected - 4+6 - -
01821 371 Protected - 4+6 - -
01821 372 Protected - 4+6 - -
01821 373 Protected - 4+6 - -
01821 374 Protected - 4+6 - -
01821 375 Protected - 4+6 - -
01821 376 Protected - 4+6 - -
01821 377 Allocated Spitfire Network Services Ltd 4+6 - 11/11/2011
01821 378 Protected - 4+6 - -
01821 379 Protected - 4+6 - -
01821 38 Allocated Localphone Limited 4+6 F-Digit '0' 14/05/2007
01821 39 Allocated Frontier Systems Ltd 4+6 F-Digit '3' 26/09/2007
01821 40 Allocated Barritel Limited 4+6 F-Digit '2' 02/10/2006
01821 41 Allocated Net Solutions Europe Limited 4+6 F-Digit '1' 31/01/2006
01821 420 Protected - 4+6 - -
01821 421 Protected - 4+6 - -
01821 422 Protected - 4+6 - -
01821 423 Protected - 4+6 - -
01821 424 Protected - 4+6 - -
01821 425 Protected - 4+6 - -
01821 426 Protected - 4+6 - -
01821 427 Protected - 4+6 - -
01821 428 Allocated TalkTalk Communications Limited 4+6 - 20/01/2012
01821 429 Allocated TalkTalk Communications Limited 4+6 - 20/01/2012
01821 43 Allocated VoIP-Un Limited 4+6 F-Digit '0' 05/11/2007
01821 440 Allocated IP Base Ltd 4+6 - 03/02/2011
01821 441 Allocated Nexbridge Communications Limited 4+6 - 17/03/2011
01821 442 Free - 4+6 - -
01821 443 Allocated Internexus Networks Limited 4+6 - 22/11/2011
01821 444 Allocated VoiceHost Limited 4+6 - 20/08/2010
01821 445 Free - 4+6 - -
01821 446 Allocated Barritec Limited 4+6 - 20/09/2011
01821 447 Allocated iNet Telecoms Ltd (Voipfone) 4+6 - 21/10/2011
01821 448 Allocated Hello Telecom (UK) PLC 4+6 - 24/11/2011
01821 449 Allocated Bicom Systems EURL 4+6 - 01/03/2012
01821 450 Allocated Digitech Solutions Global Limited 4+6 - 09/09/2010
01821 451 Allocated Simwood eSMS Limited 4+6 - 28/03/2012
01821 452 Allocated ICC Networks Ltd 4+6 - 17/04/2012
01821 453 Allocated API Telecom Limited 4+6 - 18/04/2012
01821 454 Allocated Invoco Ltd 4+6 - 01/05/2012
01821 455 Allocated Ziron (UK) Ltd 4+6 - 31/07/2012
01821 456 Allocated IOVOX Limited 4+6 - 03/07/2012
01821 457 Allocated We Love Communications Limited 4+6 - 06/08/2012
01821 458 Allocated Content Guru Ltd 4+6 - 11/10/2012
01821 459 Allocated Broadcast Telecom Ltd 4+6 - 13/03/2012
01821 46 Allocated (aq) Limited trading as aql 4+6 - 17/09/2007
01821 47 Allocated Telephony Services Limited 4+6 F-Digit '2' 03/01/2008
01821 48 Allocated Teledesign Ltd 4+6 F-Digit '2' 05/10/2007
01821 49 Allocated Nationwide Telephone Assistance Ltd 4+6 F-Digit '0' 02/10/2007
01821 50 Allocated Mars Communications Limited 4+6 F-Digit '0' 04/02/2009
01821 51 Allocated IPV6 Limited 4+6 F-Digit '0' 13/02/2009
01821 52 Allocated 3C Limited 4+6 F-Digit '2' 20/10/2008
01821 53 Allocated Telecoms World Plc 4+6 F-Digit '0' 25/06/2009
01821 54 Allocated CFL Communications Limited 4+6 F-Digit '0' 17/07/2009
01821 55 Allocated Known Communications Limited 4+6 F-Digit '0' 18/09/2009
01821 56 Allocated Nexus Telecommunications Limited 4+6 F-Digit '0' 30/09/2009
01821 57 Allocated Mundio Mobile Limited 4+6 F-Digit '6' 30/06/2009
01821 580 Free - 4+6 - -
01821 581 Allocated Phone Co-Op Numbering Limited 4+6 - 23/12/2010
01821 582 Allocated Windsor Telecom Plc 4+6 - 29/07/2010
01821 583 Allocated Telephone Box Limited 4+6 - 10/12/2010
01821 584 Allocated Cheers International Sales Limited 4+6 - 15/12/2010
01821 585 Allocated Suretec Systems Ltd 4+6 - 13/05/2010
01821 586 Allocated Globecom International Limited 4+6 - 05/01/2011
01821 587 Allocated Telappliant Ltd 4+6 - 22/06/2010
01821 588 Allocated Atomstream Limited 4+6 - 14/05/2010
01821 589 Allocated Invosys Limited 4+6 - 20/01/2011
01821 590 Allocated Minotaur Telecom Limited 4+6 - 05/02/2013
01821 591 Allocated TelecomEight Network Ltd 4+6 - 04/04/2013
01821 592 Allocated Kalnet4u Ltd 4+6 - 03/06/2013
01821 593 Allocated i-Net Communications Group Plc 4+6 - 10/07/2013
01821 594 Allocated Radius Communications Limited 4+6 - 09/01/2014
01821 595 Allocated iHub UK Ltd 4+6 - 22/08/2013
01821 596 Free - 4+6 - -
01821 597 Free - 4+6 - -
01821 598 Free - 4+6 - -
01821 599 Allocated XoverX Ltd 4+6 - 30/04/2013
01821 600 Allocated Linear Telecoms Limited 4+6 - 18/10/2010
01821 601 Protected - 4+6 - -
01821 602 Protected - 4+6 - -
01821 603 Protected - 4+6 - -
01821 604 Protected - 4+6 - -
01821 605 Protected - 4+6 - -
01821 606 Protected - 4+6 - -
01821 607 Protected - 4+6 - -
01821 608 Protected - 4+6 - -
01821 609 Protected - 4+6 - -
01821 61 Allocated Edge Telecom Limited 4+6 - 11/04/2005
01821 62 Allocated Affiniti Integrated Solutions Ltd 4+6 - 17/06/2004
01821 63 Allocated FleXtel Limited 4+6 - 02/12/2005
01821 64 Allocated BT 4+6 - 15/07/1994
01821 65 Allocated BT 4+6 - 15/07/1994
01821 66 Allocated Magrathea Telecommunications Limited 4+6 - 24/09/2004
01821 67 Allocated BT 4+6 - 15/07/1994
01821 68 Allocated Gamma Telecom Holdings Ltd 4+6 - 29/06/2005
01821 69 Allocated Syntec Limited 4+6 - 16/12/2005
01821 700 Protected - 4+6 - -
01821 701 Protected - 4+6 - -
01821 702 Protected - 4+6 - -
01821 703 Protected - 4+6 - -
01821 704 Protected - 4+6 - -
01821 705 Protected - 4+6 - -
01821 706 Protected - 4+6 - -
01821 707 Protected - 4+6 - -
01821 708 Protected - 4+6 - -
01821 709 Protected - 4+6 - -
01821 710 Protected - 4+6 - -
01821 711 Protected - 4+6 - -
01821 712 Protected - 4+6 - -
01821 713 Protected - 4+6 - -
01821 714 Protected - 4+6 - -
01821 715 Protected - 4+6 - -
01821 716 Protected - 4+6 - -
01821 717 Protected - 4+6 - -
01821 718 Protected - 4+6 - -
01821 719 Protected - 4+6 - -
01821 720 Protected - 4+6 - -
01821 721 Protected - 4+6 - -
01821 722 Protected - 4+6 - -
01821 723 Protected - 4+6 - -
01821 724 Protected - 4+6 - -
01821 725 Protected - 4+6 - -
01821 726 Protected - 4+6 - -
01821 727 Protected - 4+6 - -
01821 728 Protected - 4+6 - -
01821 729 Protected - 4+6 - -
01821 730 Protected - 4+6 - -
01821 731 Protected - 4+6 - -
01821 732 Protected - 4+6 - -
01821 733 Protected - 4+6 - -
01821 734 Protected - 4+6 - -
01821 735 Protected - 4+6 - -
01821 736 Protected - 4+6 - -
01821 737 Protected - 4+6 - -
01821 738 Protected - 4+6 - -
01821 739 Protected - 4+6 - -
01821 740 Protected - 4+6 - -
01821 741 Protected - 4+6 - -
01821 742 Protected - 4+6 - -
01821 743 Protected - 4+6 - -
01821 744 Protected - 4+6 - -
01821 745 Protected - 4+6 - -
01821 746 Protected - 4+6 - -
01821 747 Protected - 4+6 - -
01821 748 Protected - 4+6 - -
01821 749 Protected - 4+6 - -
01821 750 Protected - 4+6 - -
01821 751 Protected - 4+6 - -
01821 752 Protected - 4+6 - -
01821 753 Protected - 4+6 - -
01821 754 Protected - 4+6 - -
01821 755 Protected - 4+6 - -
01821 756 Protected - 4+6 - -
01821 757 Protected - 4+6 - -
01821 758 Protected - 4+6 - -
01821 759 Protected - 4+6 - -
01821 760 Protected - 4+6 - -
01821 761 Protected - 4+6 - -
01821 762 Protected - 4+6 - -
01821 763 Protected - 4+6 - -
01821 764 Protected - 4+6 - -
01821 765 Protected - 4+6 - -
01821 766 Protected - 4+6 - -
01821 767 Protected - 4+6 - -
01821 768 Protected - 4+6 - -
01821 769 Protected - 4+6 - -
01821 770 Protected - 4+6 - -
01821 771 Protected - 4+6 - -
01821 772 Protected - 4+6 - -
01821 773 Protected - 4+6 - -
01821 774 Protected - 4+6 - -
01821 775 Protected - 4+6 - -
01821 776 Protected - 4+6 - -
01821 777 Protected - 4+6 - -
01821 778 Protected - 4+6 - -
01821 779 Protected - 4+6 - -
01821 780 Protected - 4+6 - -
01821 781 Protected - 4+6 - -
01821 782 Protected - 4+6 - -
01821 783 Protected - 4+6 - -
01821 784 Protected - 4+6 - -
01821 785 Protected - 4+6 - -
01821 786 Protected - 4+6 - -
01821 787 Protected - 4+6 - -
01821 788 Protected - 4+6 - -
01821 789 Protected - 4+6 - -
01821 790 Protected - 4+6 - -
01821 791 Protected - 4+6 - -
01821 792 Protected - 4+6 - -
01821 793 Protected - 4+6 - -
01821 794 Protected - 4+6 - -
01821 795 Protected - 4+6 - -
01821 796 Protected - 4+6 - -
01821 797 Protected - 4+6 - -
01821 798 Protected - 4+6 - -
01821 799 Protected - 4+6 - -
01821 800 Protected - 4+6 - -
01821 801 Protected - 4+6 - -
01821 802 Protected - 4+6 - -
01821 803 Protected - 4+6 - -
01821 804 Protected - 4+6 - -
01821 805 Protected - 4+6 - -
01821 806 Protected - 4+6 - -
01821 807 Protected - 4+6 - -
01821 808 Protected - 4+6 - -
01821 809 Protected - 4+6 - -
01821 810 Protected - 4+6 - -
01821 811 Protected - 4+6 - -
01821 812 Protected - 4+6 - -
01821 813 Protected - 4+6 - -
01821 814 Protected - 4+6 - -
01821 815 Protected - 4+6 - -
01821 816 Protected - 4+6 - -
01821 817 Protected - 4+6 - -
01821 818 Protected - 4+6 - -
01821 819 Protected - 4+6 - -
01821 820 Protected - 4+6 - -
01821 821 Protected - 4+6 - -
01821 822 Protected - 4+6 - -
01821 823 Protected - 4+6 - -
01821 824 Protected - 4+6 - -
01821 825 Protected - 4+6 - -
01821 826 Protected - 4+6 - -
01821 827 Protected - 4+6 - -
01821 828 Protected - 4+6 - -
01821 829 Protected - 4+6 - -
01821 830 Protected - 4+6 - -
01821 831 Protected - 4+6 - -
01821 832 Protected - 4+6 - -
01821 833 Protected - 4+6 - -
01821 834 Protected - 4+6 - -
01821 835 Protected - 4+6 - -
01821 836 Protected - 4+6 - -
01821 837 Protected - 4+6 - -
01821 838 Protected - 4+6 - -
01821 839 Protected - 4+6 - -
01821 840 Protected - 4+6 - -
01821 841 Protected - 4+6 - -
01821 842 Protected - 4+6 - -
01821 843 Protected - 4+6 - -
01821 844 Protected - 4+6 - -
01821 845 Protected - 4+6 - -
01821 846 Protected - 4+6 - -
01821 847 Protected - 4+6 - -
01821 848 Protected - 4+6 - -
01821 849 Protected - 4+6 - -
01821 850 Protected - 4+6 - -
01821 851 Protected - 4+6 - -
01821 852 Protected - 4+6 - -
01821 853 Protected - 4+6 - -
01821 854 Protected - 4+6 - -
01821 855 Protected - 4+6 - -
01821 856 Protected - 4+6 - -
01821 857 Protected - 4+6 - -
01821 858 Protected - 4+6 - -
01821 859 Protected - 4+6 - -
01821 860 Protected - 4+6 - -
01821 861 Protected - 4+6 - -
01821 862 Protected - 4+6 - -
01821 863 Protected - 4+6 - -
01821 864 Protected - 4+6 - -
01821 865 Protected - 4+6 - -
01821 866 Protected - 4+6 - -
01821 867 Protected - 4+6 - -
01821 868 Protected - 4+6 - -
01821 869 Protected - 4+6 - -
01821 870 Protected - 4+6 - -
01821 871 Protected - 4+6 - -
01821 872 Protected - 4+6 - -
01821 873 Protected - 4+6 - -
01821 874 Protected - 4+6 - -
01821 875 Protected - 4+6 - -
01821 876 Protected - 4+6 - -
01821 877 Protected - 4+6 - -
01821 878 Protected - 4+6 - -
01821 879 Protected - 4+6 - -
01821 880 Protected - 4+6 - -
01821 881 Protected - 4+6 - -
01821 882 Protected - 4+6 - -
01821 883 Protected - 4+6 - -
01821 884 Protected - 4+6 - -
01821 885 Protected - 4+6 - -
01821 886 Protected - 4+6 - -
01821 887 Protected - 4+6 - -
01821 888 Protected - 4+6 - -
01821 889 Protected - 4+6 - -
01821 890 Protected - 4+6 - -
01821 891 Protected - 4+6 - -
01821 892 Protected - 4+6 - -
01821 893 Protected - 4+6 - -
01821 894 Protected - 4+6 - -
01821 895 Protected - 4+6 - -
01821 896 Protected - 4+6 - -
01821 897 Protected - 4+6 - -
01821 898 Protected - 4+6 - -
01821 899 Protected - 4+6 - -
01821 900 Protected - 4+6 - -
01821 901 Protected - 4+6 - -
01821 902 Protected - 4+6 - -
01821 903 Protected - 4+6 - -
01821 904 Protected - 4+6 - -
01821 905 Protected - 4+6 - -
01821 906 Protected - 4+6 - -
01821 907 Protected - 4+6 - -
01821 908 Protected - 4+6 - -
01821 909 Protected - 4+6 - -
01821 910 Protected - 4+6 - -
01821 911 Protected - 4+6 - -
01821 912 Protected - 4+6 - -
01821 913 Protected - 4+6 - -
01821 914 Protected - 4+6 - -
01821 915 Protected - 4+6 - -
01821 916 Protected - 4+6 - -
01821 917 Protected - 4+6 - -
01821 918 Protected - 4+6 - -
01821 919 Protected - 4+6 - -
01821 920 Protected - 4+6 - -
01821 921 Protected - 4+6 - -
01821 922 Protected - 4+6 - -
01821 923 Protected - 4+6 - -
01821 924 Protected - 4+6 - -
01821 925 Protected - 4+6 - -
01821 926 Protected - 4+6 - -
01821 927 Protected - 4+6 - -
01821 928 Protected - 4+6 - -
01821 929 Protected - 4+6 - -
01821 930 Protected - 4+6 - -
01821 931 Protected - 4+6 - -
01821 932 Protected - 4+6 - -
01821 933 Protected - 4+6 - -
01821 934 Protected - 4+6 - -
01821 935 Protected - 4+6 - -
01821 936 Protected - 4+6 - -
01821 937 Protected - 4+6 - -
01821 938 Protected - 4+6 - -
01821 939 Protected - 4+6 - -
01821 940 Protected - 4+6 - -
01821 941 Protected - 4+6 - -
01821 942 Protected - 4+6 - -
01821 943 Protected - 4+6 - -
01821 944 Protected - 4+6 - -
01821 945 Protected - 4+6 - -
01821 946 Protected - 4+6 - -
01821 947 Protected - 4+6 - -
01821 948 Protected - 4+6 - -
01821 949 Protected - 4+6 - -
01821 950 Protected - 4+6 - -
01821 951 Protected - 4+6 - -
01821 952 Protected - 4+6 - -
01821 953 Protected - 4+6 - -
01821 954 Protected - 4+6 - -
01821 955 Protected - 4+6 - -
01821 956 Protected - 4+6 - -
01821 957 Protected - 4+6 - -
01821 958 Protected - 4+6 - -
01821 959 Protected - 4+6 - -
01821 960 Protected - 4+6 - -
01821 961 Protected - 4+6 - -
01821 962 Protected - 4+6 - -
01821 963 Protected - 4+6 - -
01821 964 Protected - 4+6 - -
01821 965 Protected - 4+6 - -
01821 966 Protected - 4+6 - -
01821 967 Protected - 4+6 - -
01821 968 Protected - 4+6 - -
01821 969 Protected - 4+6 - -
01821 970 Protected - 4+6 - -
01821 971 Protected - 4+6 - -
01821 972 Protected - 4+6 - -
01821 973 Protected - 4+6 - -
01821 974 Protected - 4+6 - -
01821 975 Protected - 4+6 - -
01821 976 Protected - 4+6 - -
01821 977 Protected - 4+6 - -
01821 978 Protected - 4+6 - -
01821 979 Protected - 4+6 - -
01821 980 Protected - 4+6 - -
01821 981 Protected - 4+6 - -
01821 982 Protected - 4+6 - -
01821 983 Protected - 4+6 - -
01821 984 Protected - 4+6 - -
01821 985 Protected - 4+6 - -
01821 986 Protected - 4+6 - -
01821 987 Protected - 4+6 - -
01821 988 Protected - 4+6 - -
01821 989 Protected - 4+6 - -
01821 99 Protected - N/A - -