01305 20 | BT | 15/07/1994 |
01305 21 | BT | 15/07/1994 |
01305 22 | BT | 15/07/1994 |
01305 23 | Gamma Telecom Holdings Ltd | 19/04/2004 |
01305 240 | Linear Telecoms Limited | 07/10/2010 |
01305 241 | Minotaur Telecom Limited | 07/02/2013 |
01305 242 | API Telecom Limited | 26/03/2012 |
01305 243 | Bicom Systems EURL | 01/03/2012 |
01305 244 | ICC Networks Ltd | 13/04/2012 |
01305 246 | Sky UK Limited | 02/07/2013 |
01305 247 | Alphatalk Limited | 31/01/2014 |
01305 248 | IOVOX Limited | 02/07/2012 |
01305 249 | Ziron Limited | 30/07/2012 |
01305 25 | BT | 15/07/1994 |
01305 26 | BT | 15/07/1994 |
01305 27 | Syntec Limited | 16/09/2005 |
01305 28 | TGL Services (UK) Ltd | 02/02/2015 |
01305 29 | FleXtel Limited | 20/10/2005 |
01305 30 | AQL Wholesale Ltd | 01/11/2004 |
01305 310 | VoiceHost Limited | 22/06/2010 |
01305 311 | 24 SEVEN CLOUD COMMUNICATIONS LTD | 30/09/2019 |
01305 312 | Nexbridge Communications Limited | 06/03/2012 |
01305 313 | Orbtalk Limited | 15/09/2011 |
01305 314 | Hello Telecom (UK) Limited | 08/06/2011 |
01305 317 | Internexus Networks Limited | 21/11/2011 |
01305 318 | Invoco Ltd | 20/09/2011 |
01305 319 | Sky UK Limited | 02/07/2013 |
01305 32 | BT | 11/07/1995 |
01305 33 | GCI Network Solutions Ltd | 20/04/2017 |
01305 340 | Six Degrees Technology Group Limited | 14/01/2020 |
01305 341 | Six Degrees Technology Group Limited | 14/01/2020 |
01305 342 | Six Degrees Technology Group Limited | 14/01/2020 |
01305 343 | Six Degrees Technology Group Limited | 14/01/2020 |
01305 344 | Six Degrees Technology Group Limited | 14/01/2020 |
01305 36 | Vodafone Ltd (C&W) | 19/08/2013 |
01305 370 | Digitech Solutions Global Limited | 22/06/2012 |
01305 380 | Inclarity Communications Limited | 31/05/2011 |
01305 381 | Inclarity Communications Limited | 31/05/2011 |
01305 382 | Inclarity Communications Limited | 31/05/2011 |
01305 385 | Inclarity Communications Limited | 31/05/2011 |
01305 40 | Verizon UK Limited | 18/04/2007 |
01305 41 | Localphone Limited | 23/04/2007 |
01305 43 | Barritel Limited | 12/06/2007 |
01305 44 | Voiceflex Limited | 30/07/2007 |
01305 457 | TalkTalk Communications Limited | 18/01/2012 |
01305 458 | TalkTalk Communications Limited | 18/01/2012 |
01305 459 | TalkTalk Communications Limited | 18/01/2012 |
01305 46 | (AQ) LIMITED | 10/09/2012 |
01305 47 | VoIP-Un Limited | 26/10/2007 |
01305 48 | Digital Space Group Limited | 30/11/2007 |
01305 49 | Nationwide Telephone Assistance Ltd | 01/10/2007 |
01305 50 | Net-Work Internet Ltd | 12/12/2007 |
01305 510 | Voxbone SA | 08/12/2011 |
01305 520 | TalkTalk Communications Limited | 13/02/2013 |
01305 521 | Digital Space Group Limited | 15/03/2016 |
01305 522 | Telecom2 Limited | 10/09/2009 |
01305 524 | Solutios Limited | 18/09/2008 |
01305 525 | Nodemax Limited | 15/07/2008 |
01305 526 | IPV6 Limited | 29/01/2009 |
01305 527 | Telecoms World PLC | 12/03/2009 |
01305 528 | Mars Communications Limited | 03/02/2009 |
01305 529 | Andrews & Arnold (Numbers) Ltd | 03/03/2009 |
01305 531 | Invade International Ltd | 12/01/2016 |
01305 532 | Vectone Mobile Limited | 29/06/2009 |
01305 533 | CFL Communications Ltd | 07/07/2009 |
01305 534 | Inet Telecoms Ltd (Voipfone) | 05/08/2009 |
01305 536 | Nexus Telecommunications Limited | 25/09/2009 |
01305 538 | I-NET COMMUNICATIONS GROUP PLC | 12/01/2010 |
01305 539 | Atomstream Limited | 26/02/2010 |
01305 540 | WIGHTFIBRE LIMITED | 10/12/2009 |
01305 542 | Buzz Networks Limited | 01/03/2010 |
01305 543 | Digitech Solutions Global Limited | 28/04/2010 |
01305 544 | Telappliant Ltd | 01/06/2010 |
01305 545 | Suretec Systems Ltd | 04/05/2010 |
01305 546 | Calltracks Limited | 19/09/2013 |
01305 547 | Intrado Cloud Solutions Limited | 02/08/2010 |
01305 548 | Windsor Telecom Ltd | 20/07/2010 |
01305 549 | Sky UK Limited | 02/07/2013 |
01305 550 | Core Telecom Limited | 05/08/2010 |
01305 551 | Numbergroup Utilities Ltd | 08/11/2010 |
01305 553 | Phone Co-Op Numbering Limited | 16/12/2010 |
01305 554 | Telephone Box Limited | 22/11/2010 |
01305 555 | Affiniti Integrated Solutions Limited | 08/11/2010 |
01305 557 | Vodafone Ltd (C&W) | 19/08/2013 |
01305 558 | Invosys Limited | 26/01/2012 |
01305 559 | IP Wholesale Limited | 01/06/2017 |
01305 560 | Numbergroup Utilities Ltd | 29/04/2019 |
01305 561 | TalkTalk Communications Limited | 02/11/2012 |
01305 562 | Sky UK Limited | 02/07/2013 |
01305 563 | Media Hawk Ltd | 10/04/2013 |
01305 564 | Kalnet4U Ltd | 10/05/2013 |
01305 565 | Content Guru Limited | 12/10/2012 |
01305 566 | Simwood eSMS Limited | 05/04/2013 |
01305 567 | Sky UK Limited | 17/07/2013 |
01305 568 | TalkTalk Communications Limited | 09/09/2014 |
01305 569 | XoverX Ltd | 01/05/2013 |
01305 570 | Sky UK Limited | 15/09/2014 |
01305 571 | Colt Technology Services | 21/04/2015 |
01305 572 | M247 Ltd | 29/05/2015 |
01305 573 | Sky UK Limited | 22/09/2015 |
01305 575 | Redwood Technologies Ltd | 15/11/2018 |
01305 577 | iHub 2 Limited | 18/05/2016 |
01305 578 | Affiniti Integrated Solutions Limited | 04/02/2014 |
01305 579 | YayYay Limited | 23/04/2015 |
01305 580 | Dial 9 Communications Limited | 17/05/2016 |
01305 581 | Sky UK Limited | 06/12/2016 |
01305 582 | Adepteo Limited | 13/12/2016 |
01305 583 | I.T Communications Limited | 21/10/2016 |
01305 584 | IP Voice Networks Ltd | 20/09/2017 |
01305 586 | Number Services Ltd. | 22/11/2018 |
01305 587 | Mintaka Limited | 25/11/2016 |
01305 589 | Fuse 2 Communications Ltd | 04/07/2017 |
01305 590 | Club Communications Ltd | 03/07/2018 |
01305 591 | TalkTalk Communications Limited | 09/11/2018 |
01305 592 | Sky UK Limited | 03/03/2020 |
01305 594 | BT | 28/04/2020 |
01305 595 | Colt Technology Services | 24/08/2018 |
01305 596 | SiPalto Ltd | 17/06/2020 |
01305 597 | ICUK Computing Services Limited | 20/09/2019 |
01305 598 | Belgacom International Carrier Services SA | 29/11/2019 |
01305 599 | DIDWW Ireland Limited | 18/01/2019 |
01305 600 | Mi Telecom Limited | 06/07/2020 |
01305 602 | BT | 26/08/2021 |
01305 604 | Lanonyx Telecom Limited | 10/08/2021 |
01305 605 | Gamma Telecom Holdings Ltd | 22/09/2021 |
01305 606 | VOXYONDER NETWORK SERVICES UK LTD | 10/09/2020 |
01305 70 | TTNC Limited | 25/11/2013 |
01305 71 | Lumen Technologies UK Limited | 04/08/2006 |
01305 75 | BT | 17/12/1997 |
01305 76 | BT | 15/07/1994 |
01305 77 | BT | 15/07/1994 |
01305 78 | BT | 15/07/1994 |
01305 79 | Vodafone Ltd (Energis) | 26/05/2006 |
01305 81 | BT | 15/07/1994 |
01305 82 | BT | 15/07/1994 |
01305 83 | BT | 15/07/1994 |
01305 84 | BT | 15/07/1994 |
01305 85 | BT | 15/07/1994 |
01305 86 | BT | 15/07/1994 |
01305 87 | BT | 15/07/1994 |
01305 88 | BT | 15/07/1994 |
01305 89 | Magrathea Telecommunications Limited | 24/09/2004 |
01305 90 | Citrus Telecommunications Ltd | 11/04/2006 |
01305 91 | Served Up Limited | 15/05/2008 |
01305 923 | Digital Space Group Limited | 12/04/2016 |
01305 94 | TelNG Limited | 26/02/2007 |
01305 960 | Resilient PLC | 18/05/2012 |
01305 961 | Resilient PLC | 18/05/2012 |
01305 969 | Resilient PLC | 18/05/2012 |
01305 977 | Spitfire Network Services Limited | 09/11/2011 |
01305 98 | Redcentric Solutions Limited | 05/06/2015 |