01843 11 | Affiniti Integrated Solutions Limited | 15/07/2003 |
01843 20 | BT | 09/10/1996 |
01843 210 | BT | 24/10/2013 |
01843 215 | Virgin Media Limited | 29/06/2012 |
01843 216 | Virgin Media Limited | 29/06/2012 |
01843 217 | Virgin Media Limited | 29/06/2012 |
01843 218 | Virgin Media Limited | 29/06/2012 |
01843 219 | Virgin Media Limited | 29/06/2012 |
01843 22 | BT | 15/07/1994 |
01843 23 | BT | 15/07/1994 |
01843 24 | Affiniti Integrated Solutions Limited | 15/07/2003 |
01843 25 | BT | 11/07/1995 |
01843 26 | Gamma Telecom Holdings Ltd | 11/03/2005 |
01843 270 | Linear Telecoms Limited | 18/10/2010 |
01843 271 | Nexbridge Communications Limited | 09/03/2012 |
01843 272 | Orbtalk Limited | 16/09/2011 |
01843 274 | Internexus Networks Limited | 22/11/2011 |
01843 275 | Hello Telecom (UK) Limited | 24/11/2011 |
01843 276 | Bicom Systems EURL | 01/03/2012 |
01843 278 | Simwood eSMS Limited | 09/02/2012 |
01843 279 | Sky UK Limited | 26/06/2013 |
01843 28 | BT | 17/12/1997 |
01843 29 | BT | 15/07/1994 |
01843 300 | Digitech Solutions Global Limited | 26/06/2012 |
01843 301 | ICC Networks Ltd | 17/04/2012 |
01843 302 | API Telecom Limited | 18/04/2012 |
01843 304 | Sky UK Limited | 26/06/2013 |
01843 305 | Invoco Ltd | 22/05/2012 |
01843 306 | IOVOX Limited | 04/07/2012 |
01843 307 | Ziron Limited | 31/07/2012 |
01843 308 | Numbergroup Utilities Ltd | 29/04/2019 |
01843 309 | TalkTalk Communications Limited | 13/08/2012 |
01843 310 | Kalnet4U Ltd | 03/06/2013 |
01843 311 | I-NET COMMUNICATIONS GROUP PLC | 10/07/2013 |
01843 312 | Sky UK Limited | 17/07/2013 |
01843 313 | Sky UK Limited | 17/07/2013 |
01843 314 | iHub 2 Limited | 18/05/2016 |
01843 315 | Redwood Technologies Ltd | 15/11/2018 |
01843 316 | TalkTalk Communications Limited | 24/04/2014 |
01843 317 | Colt Technology Services | 01/05/2014 |
01843 318 | Sky UK Limited | 23/10/2014 |
01843 319 | TalkTalk Communications Limited | 19/08/2013 |
01843 333 | GTT-EMEA LTD | 13/10/2021 |
01843 335 | GTT-EMEA LTD | 13/10/2021 |
01843 336 | GTT-EMEA LTD | 13/10/2021 |
01843 337 | GTT-EMEA LTD | 13/10/2021 |
01843 34 | Vodafone Ltd (C&W) | 06/09/2013 |
01843 35 | Lumen Technologies UK Limited | 18/09/2006 |
01843 36 | TelNG Limited | 28/02/2007 |
01843 377 | Spitfire Network Services Limited | 11/11/2011 |
01843 38 | Localphone Limited | 14/05/2007 |
01843 390 | Resilient PLC | 18/05/2012 |
01843 391 | Resilient PLC | 18/05/2012 |
01843 399 | Resilient PLC | 18/05/2012 |
01843 40 | TGL Services (UK) Ltd | 02/02/2015 |
01843 41 | Redcentric Solutions Limited | 05/06/2015 |
01843 42 | Voiceflex Limited | 27/09/2007 |
01843 43 | (AQ) LIMITED | 26/09/2012 |
01843 446 | TalkTalk Communications Limited | 20/01/2012 |
01843 447 | TalkTalk Communications Limited | 20/01/2012 |
01843 448 | TalkTalk Communications Limited | 20/01/2012 |
01843 449 | TalkTalk Communications Limited | 20/01/2012 |
01843 46 | Nationwide Telephone Assistance Ltd | 22/10/2007 |
01843 47 | VoIP-Un Limited | 05/11/2007 |
01843 48 | AQL Wholesale Ltd | 03/01/2008 |
01843 490 | Telecom2 Limited | 10/09/2009 |
01843 491 | TalkTalk Communications Limited | 14/02/2013 |
01843 492 | Barritel Limited | 09/10/2008 |
01843 493 | Served Up Limited | 14/10/2008 |
01843 494 | Nodemax Limited | 15/07/2008 |
01843 498 | Voxbone SA | 26/09/2008 |
01843 499 | Net-Work Internet Ltd | 23/06/2008 |
01843 500 | Six Degrees Technology Group Limited | 14/01/2020 |
01843 503 | Six Degrees Technology Group Limited | 14/01/2020 |
01843 504 | Six Degrees Technology Group Limited | 14/01/2020 |
01843 51 | Syntec Limited | 23/12/2005 |
01843 520 | TalkTalk Communications Limited | 23/10/2017 |
01843 521 | Zapappi Ltd | 05/01/2018 |
01843 522 | Number Services Ltd. | 22/11/2018 |
01843 523 | NFON UK Ltd | 20/09/2017 |
01843 524 | Club Communications Ltd | 13/08/2018 |
01843 525 | Adepteo Limited | 17/01/2017 |
01843 526 | Calltracks Limited | 02/10/2018 |
01843 527 | Sky UK Limited | 04/11/2019 |
01843 528 | Fuse 2 Communications Ltd | 03/07/2017 |
01843 529 | IP Voice Networks Ltd | 20/09/2017 |
01843 530 | Inclarity Communications Limited | 09/11/2012 |
01843 531 | Inclarity Communications Limited | 09/11/2012 |
01843 532 | Inclarity Communications Limited | 09/11/2012 |
01843 535 | Inclarity Communications Limited | 09/11/2012 |
01843 540 | TalkTalk Communications Limited | 12/02/2019 |
01843 541 | 24 SEVEN CLOUD COMMUNICATIONS LTD | 27/01/2020 |
01843 542 | Belgacom International Carrier Services SA | 10/07/2020 |
01843 543 | Colt Technology Services | 05/04/2019 |
01843 544 | DIDWW Ireland Limited | 22/01/2019 |
01843 545 | ICUK Computing Services Limited | 20/09/2019 |
01843 546 | SiPalto Ltd | 03/02/2020 |
01843 547 | VOXYONDER NETWORK SERVICES UK LTD | 10/09/2020 |
01843 548 | Mi Telecom Limited | 06/07/2020 |
01843 549 | Dial 9 Communications Limited | 08/01/2020 |
01843 55 | GCI Network Solutions Ltd | 02/05/2017 |
01843 57 | BT | 18/11/1997 |
01843 58 | BT | 15/07/1994 |
01843 59 | BT | 15/07/1994 |
01843 60 | BT | 15/07/1994 |
01843 610 | Inet Telecoms Ltd (Voipfone) | 17/11/2008 |
01843 611 | Digital Space Group Limited | 15/03/2016 |
01843 612 | Solutios Limited | 26/11/2008 |
01843 613 | Sky UK Limited | 26/06/2013 |
01843 614 | Mars Communications Limited | 06/02/2009 |
01843 615 | IPV6 Limited | 13/02/2009 |
01843 616 | Andrews & Arnold (Numbers) Ltd | 02/04/2009 |
01843 617 | Invade International Ltd | 13/01/2016 |
01843 618 | Vectone Mobile Limited | 01/07/2009 |
01843 619 | CFL Communications Ltd | 17/07/2009 |
01843 620 | Telecoms World PLC | 25/06/2009 |
01843 621 | Orbital Net Limited | 20/07/2009 |
01843 624 | Nexus Telecommunications Limited | 30/09/2009 |
01843 626 | TeleWare Group PLC | 27/01/2010 |
01843 627 | Buzz Networks Limited | 01/03/2010 |
01843 628 | Atomstream Limited | 26/03/2010 |
01843 629 | Suretec Systems Ltd | 13/05/2010 |
01843 630 | Calltracks Limited | 20/09/2013 |
01843 631 | VoiceHost Limited | 06/10/2010 |
01843 632 | Telephone Box Limited | 10/12/2010 |
01843 633 | Windsor Telecom Ltd | 29/07/2010 |
01843 636 | Invosys Limited | 10/04/2012 |
01843 637 | Vodafone Ltd (C&W) | 06/09/2013 |
01843 638 | IP Wholesale Limited | 01/06/2017 |
01843 639 | Sky UK Limited | 26/06/2013 |
01843 640 | Phone Co-Op Numbering Limited | 23/12/2010 |
01843 650 | Sky UK Limited | 26/06/2013 |
01843 651 | Numbergroup Utilities Ltd | 30/10/2012 |
01843 652 | Sky UK Limited | 26/06/2013 |
01843 653 | Media Hawk Ltd | 10/04/2013 |
01843 654 | Sky UK Limited | 03/12/2013 |
01843 655 | Content Guru Limited | 11/10/2012 |
01843 656 | Minotaur Telecom Limited | 05/02/2013 |
01843 658 | XoverX Ltd | 26/04/2013 |
01843 659 | Intrado Cloud Solutions Limited | 19/02/2013 |
01843 661 | BT | 21/07/2021 |
01843 666 | Gamma Telecom Holdings Ltd | 02/03/2021 |
01843 790 | Metronet (UK) Limited | 21/05/2019 |
01843 791 | Sky UK Limited | 17/06/2015 |
01843 792 | Mintaka Limited | 29/02/2016 |
01843 793 | Sky UK Limited | 04/12/2015 |
01843 794 | Sky UK Limited | 10/06/2016 |
01843 796 | I.T Communications Limited | 18/10/2016 |
01843 799 | YayYay Limited | 24/04/2015 |
01843 80 | Magrathea Telecommunications Limited | 19/11/2004 |
01843 81 | FleXtel Limited | 26/10/2005 |
01843 82 | BT | 15/07/1994 |
01843 83 | BT | 15/07/1994 |
01843 84 | BT | 15/07/1994 |
01843 85 | BT | 15/07/1994 |
01843 86 | BT | 15/07/1994 |
01843 87 | BT | 15/07/1994 |
01843 88 | TTNC Limited | 12/11/2013 |