0371 Numbers
0371 numbers are special use landline numbers that are not tied to any geographic location. This means that when you receive a call from a 0371 number, you have no way of knowing where it’s coming from. These numbers are used for government bodies, charities, public sector, and not-for-profit organizations and are in use across the UK. While the numbers aren’t tied to any geographic location, they don’t cost any more to call than standard, geographic-based landline numbers, like 01 or 02 numbers.
Since 0371 numbers don’t cost any more to call than a normal home or business landline, that means they are often included in call packages if you’re calling from a landline, or in included ‘talktime’ or bundled minutes when calling from a mobile.
0371 numbers were introduced as an alternative to chargeable 084 and 087 numbers. 0300 numbers let companies have a single point of contact for customers or interested parties without having to charge people extra to call them.
Calling costs for 0371 numbers
While a 0371 number is not categorized as a freephone number, calling them will not result in any added charges. Any 0371 number you call should be charged at your standard network rate. This applies to all 0371 numbers you call, no matter what the digits are afterwards.
Prefixes and Providers
| Code | Provider | Assigned |
|---|
| Loading data… |
| 0371 043 3 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0371 050 0 | Vodafone Ltd (Thus) | 15/10/2014 |
| 0371 056 3 | Vodafone Ltd (Energis) | 26/04/2007 |
| 0371 091 0 | Vodafone Ltd (Thus) | 15/10/2014 |
| 0371 097 1 | TalkTalk Communications Limited | 11/07/2008 |
| 0371 098 1 | TalkTalk Communications Limited | 11/07/2008 |
| 0371 200 | BT | 01/07/2008 |
| 0371 202 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0371 204 | Citrus Telecommunications Ltd | 28/10/2016 |
| 0371 208 | SKD 4 Limited | 08/04/2020 |
| 0371 210 | Daisy Communications Ltd | 30/04/2014 |
| 0371 211 | TalkTalk Communications Limited | 11/07/2008 |
| 0371 214 | Redcentric Solutions Limited | 26/05/2016 |
| 0371 217 | Dynamic Mobile Billing Limited | 18/03/2016 |
| 0371 218 | Digital Mail Limited | 11/05/2016 |
| 0371 220 | Affiniti Integrated Solutions Limited | 14/05/2007 |
| 0371 221 | TalkTalk Communications Limited | 11/07/2008 |
| 0371 222 | TalkTalk Communications Limited | 11/07/2008 |
| 0371 223 | Gamma Telecom Holdings Ltd | 21/06/2012 |
| 0371 224 | Affiniti Integrated Solutions Limited | 14/05/2007 |
| 0371 225 | Virgin Media Limited | 28/03/2012 |
| 0371 226 | TalkTalk Communications Limited | 11/07/2008 |
| 0371 230 | Vodafone Ltd (Energis) | 26/04/2007 |
| 0371 231 | Vodafone Ltd (Energis) | 26/04/2007 |
| 0371 232 | Verizon UK Limited | 17/04/2007 |
| 0371 233 | Affiniti Integrated Solutions Limited | 05/02/2009 |
| 0371 234 | FleXtel Limited | 10/04/2007 |
| 0371 235 | DRD Communications Limited | 26/07/2016 |
| 0371 236 | Affiniti Integrated Solutions Limited | 30/07/2013 |
| 0371 237 | FleXtel Limited | 10/04/2007 |
| 0371 239 | Vodafone Ltd (C&W) | 11/08/2014 |
| 0371 242 | TalkTalk Communications Limited | 11/07/2008 |
| 0371 243 | Vodafone Ltd (C&W) | 11/08/2014 |
| 0371 244 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0371 245 | FleXtel Limited | 10/04/2007 |
| 0371 246 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0371 247 | Vodafone Ltd (C&W) | 11/08/2014 |
| 0371 248 | Dynamic Mobile Billing Limited | 18/03/2016 |
| 0371 249 | I-NET COMMUNICATIONS GROUP PLC | 03/06/2014 |
| 0371 250 | Windsor Telecom Ltd | 04/09/2007 |
| 0371 251 | Vodafone Ltd (C&W) | 11/08/2014 |
| 0371 252 | Gamma Telecom Holdings Ltd | 17/11/2016 |
| 0371 253 | Vodafone Ltd (C&W) | 11/08/2014 |
| 0371 254 | TalkTalk Communications Limited | 28/04/2014 |
| 0371 256 | Vodafone Ltd (C&W) | 11/08/2014 |
| 0371 257 | Vodafone Ltd (C&W) | 11/08/2014 |
| 0371 258 | Vodafone Ltd (C&W) | 11/08/2014 |
| 0371 259 | Vodafone Ltd (C&W) | 11/08/2014 |
| 0371 261 | Vodafone Ltd (C&W) | 11/08/2014 |
| 0371 263 | Vodafone Ltd (C&W) | 11/08/2014 |
| 0371 264 | Vodafone Ltd (C&W) | 11/08/2014 |
| 0371 265 | TalkTalk Communications Limited | 11/07/2008 |
| 0371 266 | Affiniti Integrated Solutions Limited | 05/02/2009 |
| 0371 271 | Vodafone Ltd (Thus) | 07/02/2012 |
| 0371 272 | Daisy Communications Ltd | 30/04/2014 |
| 0371 275 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0371 276 | TTNC Limited | 20/04/2015 |
| 0371 277 | Colt Technology Services | 24/04/2007 |
| 0371 288 | Nexus Telecommunications Limited | 12/07/2007 |
| 0371 292 | Virgin Media Limited | 28/03/2012 |
| 0371 294 | Syntec Limited | 19/06/2007 |
| 0371 297 | Vodafone Ltd (Energis) | 26/04/2007 |
| 0371 299 | TalkTalk Communications Limited | 28/04/2014 |
| 0371 300 | 4D INTERACTIVE LTD | 04/06/2007 |
| 0371 302 | GCI Network Solutions Ltd | 03/05/2017 |
| 0371 309 | Magrathea Telecommunications Limited | 03/10/2017 |
| 0371 310 | Vodafone Ltd (Thus) | 07/02/2012 |
| 0371 311 | Barritel Limited | 10/12/2015 |
| 0371 314 | Daisy Communications Ltd | 30/04/2014 |
| 0371 315 | FleXtel Limited | 10/04/2007 |
| 0371 320 | Gamma Telecom Holdings Ltd | 21/06/2012 |
| 0371 321 | SKD 4 Limited | 08/04/2020 |
| 0371 326 | 24 Seven Communications Ltd | 06/07/2012 |
| 0371 327 | TelXL Ltd | 03/04/2014 |
| 0371 330 | TalkTalk Communications Limited | 11/07/2008 |
| 0371 332 | Gamma Telecom Holdings Ltd | 21/06/2012 |
| 0371 334 | Affiniti Integrated Solutions Limited | 14/05/2007 |
| 0371 336 | Vodafone Ltd (Thus) | 07/02/2012 |
| 0371 341 | TalkTalk Communications Limited | 28/04/2014 |
| 0371 345 | GCI Network Solutions Ltd | 03/05/2017 |
| 0371 346 | Core Telecom Limited | 19/02/2014 |
| 0371 351 | BT | 01/07/2008 |
| 0371 356 | TalkTalk Communications Limited | 28/04/2014 |
| 0371 359 | Digital Mail Limited | 11/05/2016 |
| 0371 360 | Virgin Media Limited | 28/03/2012 |
| 0371 362 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0371 365 | Syntec Limited | 19/06/2007 |
| 0371 369 | Magrathea Telecommunications Limited | 03/10/2017 |
| 0371 372 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0371 375 | Syntec Limited | 19/06/2007 |
| 0371 376 | BT | 01/07/2008 |
| 0371 378 | Dynamic Mobile Billing Limited | 18/03/2016 |
| 0371 382 | Citrus Telecommunications Ltd | 28/10/2016 |
| 0371 383 | Syntec Limited | 19/06/2007 |
| 0371 384 | BT | 01/07/2008 |
| 0371 386 | Vodafone Ltd (Energis) | 26/04/2007 |
| 0371 391 | Vodafone Ltd (Thus) | 27/01/2012 |
| 0371 394 | 24 Seven Communications Ltd | 06/07/2012 |
| 0371 395 | TTNC Limited | 01/10/2013 |
| 0371 397 | Virgin Media Limited | 08/04/2016 |
| 0371 399 | SKD 4 Limited | 08/04/2020 |
| 0371 400 | 4D INTERACTIVE LTD | 04/06/2007 |
| 0371 401 | Affiniti Integrated Solutions Limited | 05/02/2009 |
| 0371 402 | Gamma Telecom Holdings Ltd | 21/06/2012 |
| 0371 408 | Magrathea Telecommunications Limited | 03/10/2017 |
| 0371 410 | Gamma Telecom Holdings Ltd | 21/06/2012 |
| 0371 411 | TalkTalk Communications Limited | 11/07/2008 |
| 0371 423 | TalkTalk Communications Limited | 11/07/2008 |
| 0371 424 | GCI Network Solutions Ltd | 03/05/2017 |
| 0371 425 | Vodafone Ltd (Thus) | 27/01/2012 |
| 0371 426 | Gamma Telecom Holdings Ltd | 21/06/2012 |
| 0371 429 | Lumen Technologies UK Limited | 10/04/2007 |
| 0371 431 | Vodafone Ltd (C&W) | 06/05/2014 |
| 0371 432 | Vodafone Ltd (C&W) | 06/05/2014 |
| 0371 433 | Vodafone Ltd (C&W) | 06/05/2014 |
| 0371 434 | Dynamic Mobile Billing Limited | 18/03/2016 |
| 0371 438 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0371 451 | Dynamic Mobile Billing Limited | 18/03/2016 |
| 0371 453 | Core Telecom Limited | 19/02/2014 |
| 0371 454 | Core Telecom Limited | 19/02/2014 |
| 0371 455 | Affiniti Integrated Solutions Limited | 14/05/2007 |
| 0371 460 | Redcentric Solutions Limited | 26/05/2016 |
| 0371 462 | SKD 4 Limited | 08/04/2020 |
| 0371 464 | Barritel Limited | 06/12/2010 |
| 0371 466 | 24 Seven Communications Ltd | 06/07/2012 |
| 0371 467 | Virgin Media Limited | 08/04/2016 |
| 0371 468 | Vodafone Ltd (Energis) | 26/04/2007 |
| 0371 469 | TTNC Limited | 01/10/2013 |
| 0371 470 | Redcentric Solutions Limited | 26/05/2016 |
| 0371 471 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0371 472 | Virgin Media Limited | 08/04/2016 |
| 0371 474 | TalkTalk Communications Limited | 11/07/2008 |
| 0371 477 | Affiniti Integrated Solutions Limited | 05/02/2009 |
| 0371 481 | Virgin Media Limited | 08/04/2016 |
| 0371 483 | 24 Seven Communications Ltd | 06/07/2012 |
| 0371 484 | TTNC Limited | 01/10/2013 |
| 0371 485 | Virgin Media Limited | 08/04/2016 |
| 0371 488 | Six Degrees Technology Group Limited | 08/04/2020 |
| 0371 489 | Core Telecom Limited | 19/02/2014 |
| 0371 490 | Vodafone Ltd (Thus) | 27/01/2012 |
| 0371 495 | Virgin Media Limited | 08/04/2016 |
| 0371 496 | TTNC Limited | 01/10/2013 |
| 0371 499 | Six Degrees Technology Group Limited | 08/04/2020 |
| 0371 503 | Magrathea Telecommunications Limited | 03/10/2017 |
| 0371 504 | Magrathea Telecommunications Limited | 03/10/2017 |
| 0371 508 | Vodafone Ltd (Thus) | 07/02/2012 |
| 0371 510 | Affiniti Integrated Solutions Limited | 14/05/2007 |
| 0371 512 | Gamma Telecom Holdings Ltd | 21/06/2012 |
| 0371 516 | Redcentric Solutions Limited | 26/05/2016 |
| 0371 521 | Affiniti Integrated Solutions Limited | 14/05/2007 |
| 0371 522 | Affiniti Integrated Solutions Limited | 14/05/2007 |
| 0371 523 | Lumen Technologies UK Limited | 10/04/2007 |
| 0371 524 | 24 Seven Communications Ltd | 05/05/2010 |
| 0371 526 | Core Telecom Limited | 19/02/2014 |
| 0371 527 | TalkTalk Communications Limited | 11/07/2008 |
| 0371 528 | Affiniti Integrated Solutions Limited | 14/05/2007 |
| 0371 531 | Dynamic Mobile Billing Limited | 18/03/2016 |
| 0371 540 | Virgin Media Limited | 28/03/2012 |
| 0371 542 | Vodafone Ltd (Energis) | 26/04/2007 |
| 0371 544 | Core Telecom Limited | 19/02/2014 |
| 0371 548 | Affiniti Integrated Solutions Limited | 14/05/2007 |
| 0371 550 | 4D INTERACTIVE LTD | 04/06/2007 |
| 0371 552 | TalkTalk Communications Limited | 28/04/2014 |
| 0371 555 | GCI Network Solutions Ltd | 03/05/2017 |
| 0371 559 | Vodafone Ltd (Energis) | 12/02/2010 |
| 0371 560 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0371 564 | TTNC Limited | 01/10/2013 |
| 0371 565 | Gamma Telecom Holdings Ltd | 25/03/2014 |
| 0371 566 | Commi Holdings Limited | 17/11/2016 |
| 0371 568 | GCI Network Solutions Ltd | 03/05/2017 |
| 0371 569 | Six Degrees Technology Group Limited | 08/04/2020 |
| 0371 570 | TalkTalk Communications Limited | 28/04/2014 |
| 0371 571 | Daisy Communications Ltd | 30/04/2014 |
| 0371 573 | Dynamic Mobile Billing Limited | 18/03/2016 |
| 0371 574 | TalkTalk Communications Limited | 11/07/2008 |
| 0371 575 | Vodafone Ltd (Thus) | 15/10/2014 |
| 0371 579 | Colt Technology Services | 24/04/2007 |
| 0371 581 | BT | 03/06/2010 |
| 0371 584 | Vodafone Ltd (Thus) | 07/02/2012 |
| 0371 590 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0371 593 | Six Degrees Technology Group Limited | 08/04/2020 |
| 0371 594 | Six Degrees Technology Group Limited | 08/04/2020 |
| 0371 595 | TTNC Limited | 01/10/2013 |
| 0371 597 | Vodafone Ltd (Thus) | 27/01/2012 |
| 0371 598 | Vodafone Ltd (C&W) | 09/05/2014 |
| 0371 600 | 4D INTERACTIVE LTD | 04/06/2007 |
| 0371 604 | Digital Mail Limited | 11/05/2016 |
| 0371 618 | Digital Mail Limited | 11/05/2016 |
| 0371 620 | Vodafone Ltd (Energis) | 26/04/2007 |
| 0371 621 | TelXL Ltd | 03/04/2014 |
| 0371 622 | TalkTalk Communications Limited | 11/07/2008 |
| 0371 623 | Core Telecom Limited | 19/02/2014 |
| 0371 625 | 24 Seven Communications Ltd | 06/07/2012 |
| 0371 626 | BT | 03/06/2010 |
| 0371 628 | Affiniti Integrated Solutions Limited | 14/05/2007 |
| 0371 636 | Dynamic Mobile Billing Limited | 18/03/2016 |
| 0371 639 | Vodafone Ltd (Thus) | 07/02/2012 |
| 0371 640 | Magrathea Telecommunications Limited | 03/10/2017 |
| 0371 641 | BT | 01/07/2008 |
| 0371 644 | TalkTalk Communications Limited | 11/07/2008 |
| 0371 645 | TalkTalk Communications Limited | 11/07/2008 |
| 0371 649 | Core Telecom Limited | 19/02/2014 |
| 0371 650 | Dynamic Mobile Billing Limited | 18/03/2016 |
| 0371 652 | Vodafone Ltd (Thus) | 07/02/2012 |
| 0371 658 | Digital Space Group Limited | 28/09/2007 |
| 0371 660 | Barritel Limited | 10/04/2007 |
| 0371 663 | TalkTalk Communications Limited | 11/07/2008 |
| 0371 664 | BT | 01/07/2008 |
| 0371 666 | Syntec Limited | 19/06/2007 |
| 0371 671 | Dynamic Mobile Billing Limited | 18/03/2016 |
| 0371 673 | Vodafone Ltd (Thus) | 07/02/2012 |
| 0371 674 | Vodafone Ltd (Thus) | 07/02/2012 |
| 0371 677 | Vodafone Ltd (Energis) | 26/04/2007 |
| 0371 680 | GCI Network Solutions Ltd | 03/05/2017 |
| 0371 683 | Core Telecom Limited | 19/02/2014 |
| 0371 687 | Vodafone Ltd (Energis) | 26/04/2007 |
| 0371 688 | Affiniti Integrated Solutions Limited | 14/05/2007 |
| 0371 690 | 24 Seven Communications Ltd | 06/07/2012 |
| 0371 693 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0371 699 | Call Stream Limited | 30/06/2014 |
| 0371 700 | Virgin Media Limited | 08/04/2016 |
| 0371 702 | TalkTalk Communications Limited | 11/07/2008 |
| 0371 703 | Gamma Telecom Holdings Ltd | 21/06/2012 |
| 0371 704 | Gamma Telecom Holdings Ltd | 21/06/2012 |
| 0371 705 | Core Telecom Limited | 19/02/2014 |
| 0371 711 | GCI Network Solutions Ltd | 20/04/2017 |
| 0371 712 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0371 713 | TelXL Ltd | 03/04/2014 |
| 0371 714 | Affiniti Integrated Solutions Limited | 14/05/2007 |
| 0371 715 | Vodafone Ltd (C&W) | 11/08/2014 |
| 0371 716 | TelXL Ltd | 03/04/2014 |
| 0371 717 | TalkTalk Communications Limited | 11/07/2008 |
| 0371 719 | TelXL Ltd | 03/04/2014 |
| 0371 720 | TalkTalk Communications Limited | 11/07/2008 |
| 0371 721 | TalkTalk Communications Limited | 11/07/2008 |
| 0371 722 | TalkTalk Communications Limited | 11/07/2008 |
| 0371 723 | TalkTalk Communications Limited | 11/07/2008 |
| 0371 724 | TalkTalk Communications Limited | 11/07/2008 |
| 0371 725 | TalkTalk Communications Limited | 11/07/2008 |
| 0371 726 | TalkTalk Communications Limited | 11/07/2008 |
| 0371 727 | TalkTalk Communications Limited | 11/07/2008 |
| 0371 728 | TalkTalk Communications Limited | 11/07/2008 |
| 0371 729 | TalkTalk Communications Limited | 11/07/2008 |
| 0371 730 | TalkTalk Communications Limited | 11/07/2008 |
| 0371 731 | TalkTalk Communications Limited | 11/07/2008 |
| 0371 732 | TalkTalk Communications Limited | 11/07/2008 |
| 0371 733 | TalkTalk Communications Limited | 11/07/2008 |
| 0371 734 | TalkTalk Communications Limited | 11/07/2008 |
| 0371 737 | Barritec Limited | 07/03/2013 |
| 0371 740 | Vodafone Ltd (Thus) | 07/02/2012 |
| 0371 741 | Virgin Media Limited | 08/04/2016 |
| 0371 744 | TalkTalk Communications Limited | 11/07/2008 |
| 0371 746 | Lumen Technologies UK Limited | 10/04/2007 |
| 0371 747 | Vodafone Ltd (Thus) | 07/02/2012 |
| 0371 750 | Vodafone Ltd (Thus) | 07/02/2012 |
| 0371 751 | TalkTalk Communications Limited | 28/04/2014 |
| 0371 760 | Virgin Media Limited | 08/04/2016 |
| 0371 762 | Lumen Technologies UK Limited | 10/04/2007 |
| 0371 766 | TalkTalk Communications Limited | 11/07/2008 |
| 0371 767 | Vodafone Ltd (Thus) | 07/02/2012 |
| 0371 770 | TalkTalk Communications Limited | 14/07/2008 |
| 0371 775 | Digital Mail Limited | 11/05/2016 |
| 0371 781 | TalkTalk Communications Limited | 14/07/2008 |
| 0371 782 | Redcentric Solutions Limited | 26/05/2016 |
| 0371 784 | Gamma Telecom Holdings Ltd | 17/07/2013 |
| 0371 789 | Telecoms World PLC | 05/10/2007 |
| 0371 792 | Lumen Technologies UK Limited | 10/04/2007 |
| 0371 800 | 4D INTERACTIVE LTD | 04/06/2007 |
| 0371 801 | TalkTalk Communications Limited | 28/04/2014 |
| 0371 803 | Virgin Media Limited | 28/03/2012 |
| 0371 806 | TalkTalk Communications Limited | 28/04/2014 |
| 0371 807 | Magrathea Telecommunications Limited | 03/10/2017 |
| 0371 810 | Virgin Media Limited | 08/04/2016 |
| 0371 811 | Gamma Telecom Holdings Ltd | 21/06/2012 |
| 0371 813 | Lumen Technologies UK Limited | 10/04/2007 |
| 0371 823 | Core Telecom Limited | 19/02/2014 |
| 0371 826 | Sigma Voice Solutions Ltd | 07/03/2014 |
| 0371 827 | GCI Network Solutions Ltd | 03/05/2017 |
| 0371 831 | Verizon UK Limited | 17/04/2007 |
| 0371 834 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0371 836 | Core Telecom Limited | 19/02/2014 |
| 0371 837 | Vodafone Ltd (Energis) | 26/04/2007 |
| 0371 840 | Verizon UK Limited | 17/04/2007 |
| 0371 841 | TalkTalk Communications Limited | 14/07/2008 |
| 0371 842 | Core Telecom Limited | 19/02/2014 |
| 0371 843 | Lumen Technologies UK Limited | 10/04/2007 |
| 0371 850 | Citrus Telecommunications Ltd | 28/10/2016 |
| 0371 853 | Virgin Media Limited | 28/03/2012 |
| 0371 855 | Syntec Limited | 19/06/2007 |
| 0371 862 | Redcentric Solutions Limited | 26/05/2016 |
| 0371 864 | Core Telecom Limited | 19/02/2014 |
| 0371 865 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0371 867 | Verizon UK Limited | 17/04/2007 |
| 0371 871 | TalkTalk Communications Limited | 14/07/2008 |
| 0371 872 | Dynamic Mobile Billing Limited | 18/03/2016 |
| 0371 873 | GCI Network Solutions Ltd | 03/05/2017 |
| 0371 875 | Dynamic Mobile Billing Limited | 18/03/2016 |
| 0371 876 | Windsor Telecom Ltd | 30/03/2011 |
| 0371 880 | TalkTalk Communications Limited | 28/04/2014 |
| 0371 882 | Affiniti Integrated Solutions Limited | 14/05/2007 |
| 0371 884 | TalkTalk Communications Limited | 28/04/2014 |
| 0371 889 | Citrus Telecommunications Ltd | 28/10/2016 |
| 0371 890 | Commi Holdings Limited | 17/11/2016 |
| 0371 894 | TalkTalk Communications Limited | 14/07/2008 |
| 0371 895 | BT | 01/07/2008 |
| 0371 898 | Commi Holdings Limited | 17/11/2016 |
| 0371 899 | Commi Holdings Limited | 17/11/2016 |
| 0371 900 | GCI Network Solutions Ltd | 03/05/2017 |
| 0371 902 | Call Stream Limited | 13/01/2020 |
| 0371 903 | TTNC Limited | 01/10/2013 |
| 0371 908 | 4D INTERACTIVE LTD | 04/06/2007 |
| 0371 910 | Numbergroup Utilities Ltd | 19/10/2010 |
| 0371 911 | Virgin Media Limited | 08/04/2016 |
| 0371 915 | FleXtel Limited | 10/04/2007 |
| 0371 920 | Verizon UK Limited | 17/04/2007 |
| 0371 923 | Core Telecom Limited | 19/02/2014 |
| 0371 926 | Citrus Telecommunications Ltd | 03/04/2018 |
| 0371 928 | GCI Network Solutions Ltd | 03/05/2017 |
| 0371 930 | Verizon UK Limited | 17/04/2007 |
| 0371 933 | Citrus Telecommunications Ltd | 28/10/2016 |
| 0371 934 | I-NET COMMUNICATIONS GROUP PLC | 03/06/2014 |
| 0371 939 | Core Telecom Limited | 19/02/2014 |
| 0371 940 | TalkTalk Communications Limited | 14/07/2008 |
| 0371 941 | Daisy Communications Ltd | 30/04/2014 |
| 0371 942 | TalkTalk Communications Limited | 14/07/2008 |
| 0371 943 | BT | 01/07/2008 |
| 0371 944 | 24 Seven Communications Ltd | 05/05/2010 |
| 0371 945 | Colt Technology Services | 24/04/2007 |
| 0371 946 | Colt Technology Services | 24/04/2007 |
| 0371 947 | Colt Technology Services | 24/04/2007 |
| 0371 948 | Colt Technology Services | 24/04/2007 |
| 0371 949 | Colt Technology Services | 24/04/2007 |
| 0371 950 | 24 Seven Communications Ltd | 05/05/2010 |
| 0371 951 | Core Telecom Limited | 19/02/2014 |
| 0371 952 | Affiniti Integrated Solutions Limited | 14/05/2007 |
| 0371 953 | Core Telecom Limited | 19/02/2014 |
| 0371 955 | Magrathea Telecommunications Limited | 03/10/2017 |
| 0371 956 | 24 Seven Communications Ltd | 05/05/2010 |
| 0371 960 | Gamma Telecom Holdings Ltd | 21/06/2012 |
| 0371 961 | Gamma Telecom Holdings Ltd | 21/06/2012 |
| 0371 962 | Gamma Telecom Holdings Ltd | 21/06/2012 |
| 0371 963 | Gamma Telecom Holdings Ltd | 21/06/2012 |
| 0371 964 | Gamma Telecom Holdings Ltd | 21/06/2012 |
| 0371 965 | Gamma Telecom Holdings Ltd | 21/06/2012 |
| 0371 966 | Gamma Telecom Holdings Ltd | 21/06/2012 |
| 0371 967 | Gamma Telecom Holdings Ltd | 21/06/2012 |
| 0371 968 | Gamma Telecom Holdings Ltd | 21/06/2012 |
| 0371 969 | Gamma Telecom Holdings Ltd | 21/06/2012 |
| 0371 971 | Vodafone Ltd (Energis) | 26/04/2007 |
| 0371 973 | Vodafone Ltd (Thus) | 07/02/2012 |
| 0371 974 | FleXtel Limited | 10/04/2007 |
| 0371 976 | Telecoms World PLC | 13/10/2008 |
| 0371 977 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0371 978 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0371 983 | Vodafone Ltd (Thus) | 07/02/2012 |
| 0371 984 | Vodafone Ltd (Energis) | 26/04/2007 |
| 0371 986 | 24 Seven Communications Ltd | 05/05/2010 |
| 0371 987 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0371 989 | Vodafone Ltd (Thus) | 07/02/2012 |
| 0371 992 | TalkTalk Communications Limited | 28/04/2014 |
| 0371 995 | GCI Network Solutions Ltd | 03/05/2017 |
| 0371 996 | FleXtel Limited | 10/04/2007 |
| 0371 997 | Maximus Communications Ltd | 05/06/2015 |
| 0371 998 | Telecoms World PLC | 20/11/2008 |