01403 03 | Vodafone Ltd (C&W) | 06/09/2013 |
01403 21 | BT | 15/07/1994 |
01403 22 | BT | 15/07/1994 |
01403 23 | BT | 15/07/1994 |
01403 24 | BT | 15/07/1994 |
01403 25 | BT | 15/07/1994 |
01403 26 | BT | 15/07/1994 |
01403 27 | BT | 15/07/1994 |
01403 28 | BT | 15/09/1998 |
01403 29 | TTNC Limited | 14/11/2013 |
01403 30 | Redcentric Solutions Limited | 05/06/2015 |
01403 31 | Served Up Limited | 19/05/2008 |
01403 32 | BT | 15/07/1994 |
01403 33 | Gamma Telecom Holdings Ltd | 01/03/2004 |
01403 34 | Vodafone Ltd (C&W) | 06/09/2013 |
01403 35 | BT | 15/07/1994 |
01403 370 | Linear Telecoms Limited | 08/10/2010 |
01403 371 | Invoco Ltd | 22/09/2011 |
01403 372 | Sky UK Limited | 02/07/2013 |
01403 373 | Hello Telecom (UK) Limited | 10/11/2011 |
01403 374 | Internexus Networks Limited | 21/11/2011 |
01403 375 | Bicom Systems EURL | 02/03/2012 |
01403 376 | API Telecom Limited | 27/03/2012 |
01403 378 | ICC Networks Ltd | 13/04/2012 |
01403 379 | Ziron Limited | 30/07/2012 |
01403 386 | GTT-EMEA LTD | 13/10/2021 |
01403 387 | GTT-EMEA LTD | 13/10/2021 |
01403 389 | GTT-EMEA LTD | 13/10/2021 |
01403 39 | GCI Network Solutions Ltd | 25/04/2017 |
01403 400 | Vodafone Ltd (Thus) | 13/01/2012 |
01403 401 | Vodafone Ltd (Thus) | 13/01/2012 |
01403 402 | Vodafone Ltd (Thus) | 13/01/2012 |
01403 403 | Vodafone Ltd (Thus) | 13/01/2012 |
01403 408 | Vodafone Ltd (Thus) | 13/01/2012 |
01403 409 | Vodafone Ltd (Thus) | 13/01/2012 |
01403 430 | Media Hawk Ltd | 11/11/2015 |
01403 432 | Sky UK Limited | 27/10/2016 |
01403 434 | I.T Communications Limited | 21/10/2016 |
01403 435 | Adepteo Limited | 17/01/2017 |
01403 436 | Virgin Media Limited | 03/03/2017 |
01403 437 | Orbtalk Limited | 17/05/2017 |
01403 438 | Alnitak GmbH | 06/04/2016 |
01403 439 | Number Services Ltd. | 22/11/2018 |
01403 44 | FleXtel Limited | 20/10/2005 |
01403 450 | Digitech Solutions Global Limited | 25/06/2012 |
01403 451 | TalkTalk Communications Limited | 06/09/2012 |
01403 452 | Sky UK Limited | 02/07/2013 |
01403 453 | IOVOX Limited | 02/07/2012 |
01403 454 | Content Guru Limited | 15/10/2012 |
01403 456 | Colt Technology Services | 30/01/2013 |
01403 457 | Numbers Plus Ltd | 14/02/2013 |
01403 458 | Simwood eSMS Limited | 05/04/2013 |
01403 459 | XoverX Ltd | 30/04/2013 |
01403 460 | Vodafone Ltd (C&W) | 06/09/2013 |
01403 461 | Vodafone Ltd (C&W) | 06/09/2013 |
01403 462 | Vodafone Ltd (C&W) | 06/09/2013 |
01403 463 | Vodafone Ltd (C&W) | 06/09/2013 |
01403 464 | Vodafone Ltd (C&W) | 06/09/2013 |
01403 465 | Vodafone Ltd (C&W) | 06/09/2013 |
01403 466 | Vodafone Ltd (C&W) | 06/09/2013 |
01403 48 | Barritel Limited | 02/11/2006 |
01403 490 | Resilient PLC | 18/05/2012 |
01403 491 | Resilient PLC | 18/05/2012 |
01403 499 | Resilient PLC | 18/05/2012 |
01403 51 | TelNG Limited | 27/02/2007 |
01403 540 | (AQ) LIMITED | 19/10/2011 |
01403 541 | TalkTalk Communications Limited | 24/04/2013 |
01403 542 | Digital Space Group Limited | 15/03/2016 |
01403 543 | Entanet International Ltd | 20/12/2007 |
01403 545 | Telecoms World PLC | 13/03/2009 |
01403 546 | Telecom2 Limited | 11/09/2009 |
01403 548 | Digital Space Group Limited | 30/11/2007 |
01403 549 | Invade International Ltd | 12/01/2016 |
01403 55 | Citrus Telecommunications Ltd | 11/04/2006 |
01403 560 | Nodemax Limited | 16/07/2008 |
01403 562 | Solutios Limited | 06/10/2008 |
01403 563 | Sky UK Limited | 02/07/2013 |
01403 564 | Verizon UK Limited | 11/03/2008 |
01403 566 | Net-Work Internet Ltd | 24/09/2007 |
01403 567 | IPV6 Limited | 04/02/2009 |
01403 568 | Vectone Mobile Limited | 30/06/2009 |
01403 569 | CFL Communications Ltd | 10/07/2009 |
01403 577 | Spitfire Network Services Limited | 10/11/2011 |
01403 580 | Localphone Limited | 04/05/2007 |
01403 581 | TalkTalk Communications Limited | 03/08/2009 |
01403 582 | Voxbone SA | 18/01/2008 |
01403 583 | Nexus Telecommunications Limited | 25/09/2009 |
01403 584 | WIGHTFIBRE LIMITED | 07/01/2010 |
01403 585 | I-NET COMMUNICATIONS GROUP PLC | 12/01/2010 |
01403 586 | Buzz Networks Limited | 04/03/2010 |
01403 587 | Atomstream Limited | 22/03/2010 |
01403 588 | TalkTalk Communications Limited | 04/05/2007 |
01403 591 | Digitech Solutions Global Limited | 29/04/2010 |
01403 592 | Suretec Systems Ltd | 05/05/2010 |
01403 593 | Calltracks Limited | 20/09/2013 |
01403 594 | Core Telecom Limited | 05/08/2010 |
01403 595 | VoIP-Un Limited | 29/10/2007 |
01403 597 | Inet Telecoms Ltd (Voipfone) | 30/11/2009 |
01403 598 | Telappliant Ltd | 01/06/2010 |
01403 599 | Voiceflex Limited | 25/09/2007 |
01403 600 | Phone Co-Op Numbering Limited | 22/12/2010 |
01403 602 | Invosys Limited | 26/01/2012 |
01403 603 | IP Wholesale Limited | 01/06/2017 |
01403 604 | Minotaur Telecom Limited | 31/01/2013 |
01403 605 | Nexbridge Communications Limited | 08/03/2012 |
01403 610 | Kalnet4U Ltd | 13/12/2013 |
01403 611 | Redwood Technologies Ltd | 15/11/2018 |
01403 612 | Sky UK Limited | 13/01/2014 |
01403 613 | YayYay Limited | 23/04/2015 |
01403 614 | M247 Ltd | 29/05/2015 |
01403 615 | Media Hawk Ltd | 23/04/2019 |
01403 616 | iHub 2 Limited | 18/05/2016 |
01403 617 | Sky UK Limited | 24/07/2015 |
01403 618 | Affiniti Integrated Solutions Limited | 21/07/2014 |
01403 620 | Gamma Telecom Holdings Ltd | 15/05/2018 |
01403 621 | NFON UK Ltd | 18/07/2018 |
01403 622 | Club Communications Ltd | 03/07/2018 |
01403 623 | Zapappi Ltd | 05/01/2018 |
01403 625 | TalkTalk Communications Limited | 21/11/2018 |
01403 626 | IP Voice Networks Ltd | 20/09/2017 |
01403 627 | Gamma Telecom Holdings Ltd | 17/12/2018 |
01403 628 | Colt Technology Services | 13/08/2018 |
01403 629 | Fuse 2 Communications Ltd | 04/07/2017 |
01403 70 | BT | 15/07/1994 |
01403 71 | BT | 15/07/1994 |
01403 720 | Inclarity Communications Limited | 06/11/2012 |
01403 721 | Inclarity Communications Limited | 06/11/2012 |
01403 722 | Inclarity Communications Limited | 06/11/2012 |
01403 725 | Inclarity Communications Limited | 06/11/2012 |
01403 73 | BT | 15/07/1994 |
01403 74 | BT | 15/07/1994 |
01403 75 | BT | 15/07/1994 |
01403 778 | Vodafone Ltd (C&W) | 11/08/2015 |
01403 779 | Vodafone Ltd (C&W) | 11/08/2015 |
01403 78 | BT | 15/07/1994 |
01403 79 | BT | 15/07/1994 |
01403 80 | AQL Wholesale Ltd | 01/11/2004 |
01403 810 | Six Degrees Technology Group Limited | 14/01/2020 |
01403 814 | Six Degrees Technology Group Limited | 14/01/2020 |
01403 82 | BT | 15/07/1994 |
01403 83 | Vodafone Ltd (C&W) | 06/09/2013 |
01403 84 | Syntec Limited | 01/03/2005 |
01403 850 | Andrews & Arnold (Numbers) Ltd | 05/03/2009 |
01403 851 | VoiceHost Limited | 17/09/2010 |
01403 852 | TGL Services (UK) Ltd | 02/02/2015 |
01403 853 | Telephone Box Limited | 18/11/2010 |
01403 854 | Windsor Telecom Ltd | 21/07/2010 |
01403 855 | Mars Communications Limited | 05/02/2009 |
01403 856 | Numbergroup Utilities Ltd | 03/12/2010 |
01403 858 | Affiniti Integrated Solutions Limited | 12/11/2007 |
01403 859 | Nationwide Telephone Assistance Ltd | 02/10/2007 |
01403 86 | BT | 15/07/1994 |
01403 87 | BT | 15/07/1994 |
01403 88 | Magrathea Telecommunications Limited | 24/09/2004 |
01403 89 | BT | 15/07/1994 |
01403 900 | BT | 09/12/2019 |
01403 901 | Dial 9 Communications Limited | 10/12/2019 |
01403 902 | 24 SEVEN CLOUD COMMUNICATIONS LTD | 17/01/2020 |
01403 903 | Sky UK Limited | 08/09/2020 |
01403 904 | VOXYONDER NETWORK SERVICES UK LTD | 10/09/2020 |
01403 905 | SiPalto Ltd | 17/06/2020 |
01403 906 | Colt Technology Services | 09/12/2020 |
01403 907 | Gamma Telecom Holdings Ltd | 17/12/2020 |
01403 908 | Belgacom International Carrier Services SA | 06/02/2020 |
01403 909 | Mi Telecom Limited | 03/07/2020 |
01403 910 | DIDWW Ireland Limited | 27/01/2020 |
01403 911 | ICUK Computing Services Limited | 12/08/2019 |
01403 912 | Gamma Telecom Holdings Ltd | 12/04/2021 |
01403 913 | BT | 17/12/2020 |
01403 914 | Gamma Telecom Holdings Ltd | 15/07/2020 |
01403 915 | BT | 06/03/2019 |
01403 916 | Gamma Telecom Holdings Ltd | 11/09/2019 |