This page contains information about which telephone companies the various 0703 numbers are allocated to.
| First Digits | Status | Communications Provider | Use | Notes | Change |
|---|---|---|---|---|---|
| 070 300 | Allocated | Barritel Limited | Personal Numbers | 10 Digit Numbers | 09/2002 |
| 070 301 | Allocated | Affiniti Integrated Solutions Ltd | Personal Numbers | 10 Digit Numbers | 02/2008 |
| 070 302 | Allocated | Level 3 Communications UK Limited | Personal Numbers | 10 Digit Numbers | 08/1999 |
| 070 303 | Allocated | TalkTalk Communications Limited | Personal Numbers | 10 Digit Numbers | 10/2003 |
| 070 304 | Allocated | TalkTalk Communications Limited | Personal Numbers | 10 Digit Numbers | 06/2006 |
| 070 3050 | Allocated | Atlantic Communications Corp Ltd | Personal Numbers | 10 Digit Numbers | 07/2007 |
| 070 3059 | Allocated | Atlantic Communications Corp Ltd | Personal Numbers | 10 Digit Numbers | 07/2007 |
| 070 306 | Allocated | Nexus Telecommunications Limited | Personal Numbers | 10 Digit Numbers | 06/2000 |
| 070 3080 | Allocated | Atlantic Communications Corp Ltd | Personal Numbers | 10 Digit Numbers | 07/2007 |
| 070 3089 | Allocated | Atlantic Communications Corp Ltd | Personal Numbers | 10 Digit Numbers | 07/2007 |
| 070 309 | Allocated | Atlas Interactive Group Limited | Personal Numbers | 10 Digit Numbers | 04/2000 |
| 070 310 | Allocated | Sala Limited | Personal Numbers | 10 Digit Numbers | 03/2000 |
| 070 311 | Allocated | British Sky Broadcasting Limited | Personal Numbers | 10 Digit Numbers | 11/1997 |
| 070 312 | Allocated | Callagenix Ltd | Personal Numbers | 10 Digit Numbers | 09/2004 |
| 070 314 | Allocated | Edge Telecom Limited | Personal Numbers | 10 Digit Numbers | 03/2005 |
| 070 3150 | Allocated | Nodemax Limited | Personal Numbers | 10 Digit Numbers | 05/2008 |
| 070 3151 | Allocated | Nodemax Limited | Personal Numbers | 10 Digit Numbers | 05/2008 |
| 070 3152 | Allocated | Nodemax Limited | Personal Numbers | 10 Digit Numbers | 05/2008 |
| 070 3153 | Allocated | Nodemax Limited | Personal Numbers | 10 Digit Numbers | 05/2008 |
| 070 3154 | Allocated | Nodemax Limited | Personal Numbers | 10 Digit Numbers | 05/2008 |
| 070 3155 | Allocated | Nodemax Limited | Personal Numbers | 10 Digit Numbers | 05/2008 |
| 070 3156 | Allocated | Nodemax Limited | Personal Numbers | 10 Digit Numbers | 05/2008 |
| 070 3157 | Allocated | Nodemax Limited | Personal Numbers | 10 Digit Numbers | 05/2008 |
| 070 3158 | Allocated | Nodemax Limited | Personal Numbers | 10 Digit Numbers | 05/2008 |
| 070 3159 | Allocated | Nodemax Limited | Personal Numbers | 10 Digit Numbers | 05/2008 |
| 070 316 | Allocated | Magrathea Telecommunications Limited | Personal Numbers | 10 Digit Numbers | 03/2002 |
| 070 317 | Allocated | Magrathea Telecommunications Limited | Personal Numbers | 10 Digit Numbers | 03/2002 |
| 070 318 | Allocated | Magrathea Telecommunications Limited | Personal Numbers | 10 Digit Numbers | 03/2002 |
| 070 319 | Allocated | Magrathea Telecommunications Limited | Personal Numbers | 10 Digit Numbers | 03/2002 |
| 070 3200 | Allocated | Sound Advertising Ltd | Personal Numbers | 10 Digit Numbers | 03/2011 |
| 070 330 | Allocated | Vodafone Ltd (C&W) | Personal Numbers | 10 Digit Numbers | 04/2010 |
| 070 331 | Allocated | 24 Seven Communications Ltd | Personal Numbers | 10 Digit Numbers | 03/2008 |
| 070 332 | Allocated | Cheers International Sales Limited | Personal Numbers | 10 Digit Numbers | 02/2008 |
| 070 333 | Allocated | Cheers International Sales Limited | Personal Numbers | 10 Digit Numbers | 02/2008 |
| 070 334 | Allocated | Cheers International Sales Limited | Personal Numbers | 10 Digit Numbers | 02/2008 |
| 070 3353 | Allocated | Sound Advertising Ltd | Personal Numbers | 10 Digit Numbers | 03/2011 |
| 070 336 | Allocated | Modus Telecom Ltd | Personal Numbers | 10 Digit Numbers | 11/2005 |
| 070 338 | Allocated | Xero 9 Limited | Personal Numbers | 10 Digit Numbers | 10/2005 |
| 070 340 | Allocated | Cheers International Sales Limited | Personal Numbers | 10 Digit Numbers | 02/2008 |
| 070 341 | Allocated | Subhan Universal Limited | Personal Numbers | 10 Digit Numbers | 01/2009 |
| 070 342 | Allocated | Media Telecom Ltd | Personal Numbers | 10 Digit Numbers | 06/2010 |
| 070 343 | Allocated | Cheers International Sales Limited | Personal Numbers | 10 Digit Numbers | 02/2008 |
| 070 344 | Allocated | Cheers International Sales Limited | Personal Numbers | 10 Digit Numbers | 02/2008 |
| 070 345 | Allocated | Cheers International Sales Limited | Personal Numbers | 10 Digit Numbers | 02/2008 |
| 070 346 | Allocated | Subhan Universal Limited | Personal Numbers | 10 Digit Numbers | 01/2009 |
| 070 3470 | Allocated | Premium O Limited | Personal Numbers | 10 Digit Numbers | 05/2010 |
| 070 3471 | Allocated | Telappliant Ltd | Personal Numbers | 10 Digit Numbers | 06/2010 |
| 070 3472 | Allocated | Telecom2 Ltd | Personal Numbers | 10 Digit Numbers | 07/2010 |
| 070 3473 | Allocated | M P Tanner Limited t/a FIO Telecom | Personal Numbers | 10 Digit Numbers | 06/2010 |
| 070 3474 | Allocated | Telecom2 Ltd | Personal Numbers | 10 Digit Numbers | 07/2010 |
| 070 3475 | Allocated | Telecom2 Ltd | Personal Numbers | 10 Digit Numbers | 07/2010 |
| 070 3476 | Allocated | Telecom2 Ltd | Personal Numbers | 10 Digit Numbers | 07/2010 |
| 070 3478 | Allocated | Telecom2 Ltd | Personal Numbers | 10 Digit Numbers | 07/2010 |
| 070 3479 | Allocated | Telecom2 Ltd | Personal Numbers | 10 Digit Numbers | 07/2010 |
| 070 348 | Allocated | Modus Telecom Ltd | Personal Numbers | 10 Digit Numbers | 11/2005 |
| 070 3490 | Allocated | IPV6 Limited | Personal Numbers | 10 Digit Numbers | 05/2010 |
| 070 3491 | Allocated | Telecom2 Ltd | Personal Numbers | 10 Digit Numbers | 07/2010 |
| 070 3492 | Allocated | Telecom2 Ltd | Personal Numbers | 10 Digit Numbers | 07/2010 |
| 070 3493 | Allocated | Telecom2 Ltd | Personal Numbers | 10 Digit Numbers | 07/2010 |
| 070 3494 | Allocated | IPV6 Limited | Personal Numbers | 10 Digit Numbers | 05/2010 |
| 070 3495 | Allocated | Telecom2 Ltd | Personal Numbers | 10 Digit Numbers | 07/2010 |
| 070 3496 | Allocated | Media Telecom Ltd | Personal Numbers | 10 Digit Numbers | 08/2010 |
| 070 3497 | Allocated | Media Telecom Ltd | Personal Numbers | 10 Digit Numbers | 08/2010 |
| 070 3498 | Allocated | Media Telecom Ltd | Personal Numbers | 10 Digit Numbers | 08/2010 |
| 070 3499 | Allocated | IPV6 Limited | Personal Numbers | 10 Digit Numbers | 05/2010 |
| 070 350 | Allocated | Subhan Universal Limited | Personal Numbers | 10 Digit Numbers | 01/2009 |
| 070 3510 | Allocated | Suretec Systems Ltd | Personal Numbers | 10 Digit Numbers | 05/2010 |
| 070 3511 | Allocated | IPV6 Limited | Personal Numbers | 10 Digit Numbers | 05/2010 |
| 070 3512 | Allocated | Suretec Systems Ltd | Personal Numbers | 10 Digit Numbers | 05/2010 |
| 070 3513 | Allocated | Media Telecom Ltd | Personal Numbers | 10 Digit Numbers | 08/2010 |
| 070 3514 | Allocated | Suretec Systems Ltd | Personal Numbers | 10 Digit Numbers | 05/2010 |
| 070 3515 | Allocated | Media Telecom Ltd | Personal Numbers | 10 Digit Numbers | 08/2010 |
| 070 3516 | Allocated | Suretec Systems Ltd | Personal Numbers | 10 Digit Numbers | 05/2010 |
| 070 3517 | Allocated | M P Tanner Limited t/a FIO Telecom | Personal Numbers | 10 Digit Numbers | 06/2010 |
| 070 3518 | Allocated | Jessico Networks Ltd | Personal Numbers | 10 Digit Numbers | 09/2010 |
| 070 3519 | Allocated | Media Telecom Ltd | Personal Numbers | 10 Digit Numbers | 08/2010 |
| 070 352 | Allocated | Xero 9 Limited | Personal Numbers | 10 Digit Numbers | 10/2005 |
| 070 353 | Allocated | Cheers International Sales Limited | Personal Numbers | 10 Digit Numbers | 02/2008 |
| 070 354 | Allocated | Magrathea Telecommunications Limited | Personal Numbers | 10 Digit Numbers | 11/2005 |
| 070 355 | Allocated | Cheers International Sales Limited | Personal Numbers | 10 Digit Numbers | 02/2008 |
| 070 356 | Allocated | Cheers International Sales Limited | Personal Numbers | 10 Digit Numbers | 02/2008 |
| 070 357 | Allocated | 24 Seven Communications Ltd | Personal Numbers | 10 Digit Numbers | 12/2005 |
| 070 358 | Allocated | Cheers International Sales Limited | Personal Numbers | 10 Digit Numbers | 02/2008 |
| 070 359 | Allocated | Open Telecom International Ltd | Personal Numbers | 10 Digit Numbers | 01/2006 |
| 070 360 | Allocated | Cheers International Sales Limited | Personal Numbers | 10 Digit Numbers | 02/2008 |
| 070 361 | Allocated | Oxygen8 Communications UK Limited | Personal Numbers | 10 Digit Numbers | 01/2006 |
| 070 362 | Allocated | Oxygen8 Communications UK Limited | Personal Numbers | 10 Digit Numbers | 01/2006 |
| 070 363 | Allocated | Cheers International Sales Limited | Personal Numbers | 10 Digit Numbers | 02/2008 |
| 070 364 | Allocated | 24 Seven Communications Ltd | Personal Numbers | 10 Digit Numbers | 12/2005 |
| 070 365 | Allocated | Telecom Essex Ltd | Personal Numbers | 10 Digit Numbers | 11/2005 |
| 070 366 | Allocated | Cheers International Sales Limited | Personal Numbers | 10 Digit Numbers | 02/2008 |
| 070 367 | Allocated | Cheers International Sales Limited | Personal Numbers | 10 Digit Numbers | 02/2008 |
| 070 368 | Allocated | Modus Telecom Ltd | Personal Numbers | 10 Digit Numbers | 11/2005 |
| 070 369 | Allocated | Oxygen8 Communications UK Limited | Personal Numbers | 10 Digit Numbers | 01/2006 |
| 070 370 | Allocated | Media Telecom Ltd | Personal Numbers | 10 Digit Numbers | 06/2010 |
| 070 371 | Allocated | Media Telecom Ltd | Personal Numbers | 10 Digit Numbers | 06/2010 |
| 070 372 | Allocated | Media Telecom Ltd | Personal Numbers | 10 Digit Numbers | 06/2010 |
| 070 373 | Allocated | Media Telecom Ltd | Personal Numbers | 10 Digit Numbers | 06/2010 |
| 070 374 | Allocated | Media Telecom Ltd | Personal Numbers | 10 Digit Numbers | 06/2010 |
| 070 375 | Allocated | Media Telecom Ltd | Personal Numbers | 10 Digit Numbers | 06/2010 |
| 070 376 | Allocated | Media Telecom Ltd | Personal Numbers | 10 Digit Numbers | 06/2010 |
| 070 377 | Allocated | Media Telecom Ltd | Personal Numbers | 10 Digit Numbers | 06/2010 |
| 070 378 | Allocated | Media Telecom Ltd | Personal Numbers | 10 Digit Numbers | 06/2010 |
| 070 379 | Allocated | Media Telecom Ltd | Personal Numbers | 10 Digit Numbers | 06/2010 |
| 070 3800 | Allocated | Sound Advertising Ltd | Personal Numbers | 10 Digit Numbers | 03/2011 |
| 070 3838 | Allocated | Sound Advertising Ltd | Personal Numbers | 10 Digit Numbers | 03/2011 |
| 070 387 | Allocated | Core Telecom Limited | Personal Numbers | 10 Digit Numbers | 04/2007 |
| 070 388 | Allocated | Core Telecom Limited | Personal Numbers | 10 Digit Numbers | 04/2007 |
| 070 389 | Allocated | Core Telecom Limited | Personal Numbers | 10 Digit Numbers | 04/2007 |
| 070 390 | Allocated | Starcomm Ltd | Personal Numbers | 10 Digit Numbers | 01/2001 |
| 070 391 | Allocated | Telecom2 Ltd | Personal Numbers | 10 Digit Numbers | 08/2009 |
| 070 392 | Allocated | Cloud9 Communications Limited | Personal Numbers | 10 Digit Numbers | 04/2010 |
| 070 394 | Allocated | Digital Mail Limited | Personal Numbers | 10 Digit Numbers | 08/2003 |
| 070 395 | Allocated | Invomo Ltd | Personal Numbers | 10 Digit Numbers | 08/2007 |
| 070 396 | Allocated | Cheers International Sales Limited | Personal Numbers | 10 Digit Numbers | 02/2008 |
| 070 397 | Allocated | Edge Telecom Limited | Personal Numbers | 10 Digit Numbers | 03/2005 |
| 070 398 | Allocated | Cheers International Sales Limited | Personal Numbers | 10 Digit Numbers | 02/2008 |
| 070 399 | Allocated | Firstsound Ltd | Personal Numbers | 10 Digit Numbers | 10/2000 |