This page contains information about which telephone companies the various 03443 numbers are allocated to.
| First Digits | Status | Communications Provider | Change |
|---|---|---|---|
| 0344 300 | Protected | - | - |
| 0344 301 | Protected | - | - |
| 0344 302 | Protected | - | - |
| 0344 303 | Protected | - | - |
| 0344 304 | Protected | - | - |
| 0344 305 | Allocated | Barritel Limited | 12/2010 |
| 0344 306 | Protected | - | - |
| 0344 307 | Protected | - | - |
| 0344 308 | Protected | - | - |
| 0344 309 | Protected | - | - |
| 0344 310 | Allocated | Core Telecom Limited | 02/2014 |
| 0344 311 | Protected | - | - |
| 0344 312 | Protected | - | - |
| 0344 313 | Protected | - | - |
| 0344 314 | Allocated | Call Stream Limited | 06/2014 |
| 0344 315 | Protected | - | - |
| 0344 316 | Protected | - | - |
| 0344 317 | Protected | - | - |
| 0344 318 | Allocated | Telecoms World Plc | 10/2008 |
| 0344 319 | Protected | - | - |
| 0344 320 | Protected | - | - |
| 0344 321 | Protected | - | - |
| 0344 322 | Allocated | Affiniti Integrated Solutions Ltd | 08/2007 |
| 0344 323 | Protected | - | - |
| 0344 324 | Allocated | Gamma Telecom Holdings Ltd | 11/2008 |
| 0344 325 | Allocated | Gamma Telecom Holdings Ltd | 11/2008 |
| 0344 326 | Allocated | Gamma Telecom Holdings Ltd | 11/2008 |
| 0344 327 | Allocated | Gamma Telecom Holdings Ltd | 11/2008 |
| 0344 328 | Allocated | 24 Seven Communications Ltd | 02/2013 |
| 0344 329 | Protected | - | - |
| 0344 330 | Allocated | Barritel Limited | 12/2010 |
| 0344 331 | Protected | - | - |
| 0344 332 | Allocated | Affiniti Integrated Solutions Ltd | 08/2007 |
| 0344 333 | Allocated | Affiniti Integrated Solutions Ltd | 08/2007 |
| 0344 334 | Allocated | Affiniti Integrated Solutions Ltd | 08/2007 |
| 0344 335 | Allocated | BT | 07/2008 |
| 0344 336 | Protected | - | - |
| 0344 337 | Protected | - | - |
| 0344 338 | Allocated | COLT Technology Services | 04/2014 |
| 0344 339 | Protected | - | - |
| 0344 340 | Protected | - | - |
| 0344 341 | Protected | - | - |
| 0344 342 | Protected | - | - |
| 0344 343 | Protected | - | - |
| 0344 344 | Protected | - | - |
| 0344 345 | Protected | - | - |
| 0344 346 | Allocated | TalkTalk Communications Limited | 07/2008 |
| 0344 347 | Protected | - | - |
| 0344 348 | Protected | - | - |
| 0344 349 | Protected | - | - |
| 0344 350 | Protected | - | - |
| 0344 351 | Allocated | Six Degrees Unified Comms Limited | 07/2014 |
| 0344 352 | Protected | - | - |
| 0344 353 | Allocated | Six Degrees Unified Comms Limited | 07/2014 |
| 0344 354 | Protected | - | - |
| 0344 355 | Protected | - | - |
| 0344 356 | Protected | - | - |
| 0344 357 | Allocated | Six Degrees Unified Comms Limited | 07/2014 |
| 0344 358 | Protected | - | - |
| 0344 359 | Protected | - | - |
| 0344 360 | Protected | - | - |
| 0344 361 | Protected | - | - |
| 0344 362 | Protected | - | - |
| 0344 363 | Protected | - | - |
| 0344 364 | Protected | - | - |
| 0344 365 | Protected | - | - |
| 0344 366 | Protected | - | - |
| 0344 367 | Protected | - | - |
| 0344 368 | Protected | - | - |
| 0344 369 | Allocated | Orange Business Holdings UK Limited | 06/2014 |
| 0344 370 | Allocated | TalkTalk Communications Limited | 07/2008 |
| 0344 371 | Allocated | TalkTalk Communications Limited | 07/2008 |
| 0344 372 | Allocated | TalkTalk Communications Limited | 07/2008 |
| 0344 373 | Protected | - | - |
| 0344 374 | Protected | - | - |
| 0344 375 | Allocated | TalkTalk Communications Limited | 07/2008 |
| 0344 376 | Protected | - | - |
| 0344 377 | Protected | - | - |
| 0344 378 | Protected | - | - |
| 0344 379 | Protected | - | - |
| 0344 380 | Protected | - | - |
| 0344 381 | Allocated | BT | 06/2010 |
| 0344 382 | Allocated | Resilient Networks Plc | 11/2007 |
| 0344 383 | Protected | - | - |
| 0344 384 | Protected | - | - |
| 0344 385 | Protected | - | - |
| 0344 386 | Protected | - | - |
| 0344 387 | Allocated | TalkTalk Communications Limited | 07/2008 |
| 0344 388 | Protected | - | - |
| 0344 389 | Protected | - | - |
| 0344 390 | Allocated | Vodafone Ltd (Thus) | 01/2012 |
| 0344 391 | Allocated | Vodafone Ltd (Energis) | 04/2007 |
| 0344 392 | Protected | - | - |
| 0344 393 | Protected | - | - |
| 0344 394 | Protected | - | - |
| 0344 395 | Allocated | Virgin Media Limited | 03/2012 |
| 0344 396 | Allocated | Syntec Limited | 06/2007 |
| 0344 397 | Protected | - | - |
| 0344 398 | Protected | - | - |
| 0344 399 | Protected | - | - |