01737 19 | BT | 18/08/1997 |
01737 200 | Sky UK Limited | 21/06/2013 |
01737 201 | Sky UK Limited | 21/06/2013 |
01737 202 | Sky UK Limited | 24/06/2013 |
01737 21 | Virgin Media Limited | 15/07/1994 |
01737 22 | BT | 15/07/1994 |
01737 23 | BT | 15/07/1994 |
01737 24 | BT | 15/07/1994 |
01737 252 | Virgin Media Limited | 27/06/2012 |
01737 254 | Virgin Media Limited | 27/06/2012 |
01737 263 | Digital Space Group Limited | 12/04/2016 |
01737 27 | Virgin Media Limited | 25/09/1995 |
01737 281 | Virgin Media Limited | 27/06/2012 |
01737 283 | Virgin Media Limited | 27/06/2012 |
01737 284 | Virgin Media Limited | 27/06/2012 |
01737 287 | Virgin Media Limited | 27/06/2012 |
01737 288 | Virgin Media Limited | 27/06/2012 |
01737 289 | Virgin Media Limited | 27/06/2012 |
01737 290 | Virgin Media Limited | 27/06/2012 |
01737 291 | Virgin Media Limited | 27/06/2012 |
01737 292 | Virgin Media Limited | 27/06/2012 |
01737 293 | Virgin Media Limited | 27/06/2012 |
01737 294 | Virgin Media Limited | 27/06/2012 |
01737 295 | Virgin Media Limited | 27/06/2012 |
01737 296 | Virgin Media Limited | 27/06/2012 |
01737 297 | Virgin Media Limited | 27/06/2012 |
01737 30 | Gamma Telecom Holdings Ltd | 08/04/2005 |
01737 317 | Spitfire Network Services Limited | 21/07/2011 |
01737 32 | Vodafone Ltd (C&W) | 10/09/2013 |
01737 33 | BT | 16/05/2000 |
01737 34 | Vodafone Ltd (C&W) | 10/09/2013 |
01737 35 | BT | 15/07/1994 |
01737 36 | BT | 15/07/1994 |
01737 37 | BT | 15/07/1994 |
01737 380 | Vodafone Ltd (Thus) | 25/01/2012 |
01737 381 | Vodafone Ltd (Thus) | 25/01/2012 |
01737 385 | Vodafone Ltd (Thus) | 25/01/2012 |
01737 386 | Vodafone Ltd (C&W) | 01/04/2019 |
01737 387 | Vodafone Ltd (C&W) | 01/04/2019 |
01737 388 | Vodafone Ltd (Thus) | 25/01/2012 |
01737 389 | Vodafone Ltd (Thus) | 25/01/2012 |
01737 39 | GCI Network Solutions Ltd | 26/04/2017 |
01737 40 | TTNC Limited | 12/11/2013 |
01737 41 | TelNG Limited | 28/02/2007 |
01737 420 | Voiceflex Limited | 27/09/2007 |
01737 421 | Digital Space Group Limited | 15/03/2016 |
01737 422 | VoIP-Un Limited | 05/11/2007 |
01737 423 | TalkTalk Communications Limited | 15/02/2013 |
01737 424 | Digital Space Group Limited | 20/05/2008 |
01737 425 | Solutios Limited | 25/11/2008 |
01737 427 | Telecom2 Limited | 11/09/2009 |
01737 428 | Voxbone SA | 25/09/2008 |
01737 429 | Vectone Mobile Limited | 01/07/2009 |
01737 440 | Localphone Limited | 14/05/2007 |
01737 441 | Colt Technology Services | 16/01/2009 |
01737 442 | Nexus Telecommunications Limited | 30/09/2009 |
01737 444 | (AQ) LIMITED | 12/09/2012 |
01737 445 | TeleWare Group PLC | 08/01/2010 |
01737 446 | Telecoms World PLC | 09/06/2009 |
01737 447 | Net-Work Internet Ltd | 28/01/2008 |
01737 448 | Buzz Networks Limited | 01/03/2010 |
01737 449 | Suretec Systems Ltd | 12/05/2010 |
01737 450 | Andrews & Arnold (Numbers) Ltd | 27/03/2009 |
01737 452 | 8x8 UK Limited | 24/02/2010 |
01737 453 | Atomstream Limited | 29/03/2010 |
01737 454 | I-NET COMMUNICATIONS GROUP PLC | 18/01/2010 |
01737 455 | Nodemax Limited | 09/07/2008 |
01737 457 | Inet Telecoms Ltd (Voipfone) | 17/11/2008 |
01737 458 | Calltracks Limited | 23/09/2013 |
01737 459 | Core Telecom Limited | 06/08/2010 |
01737 460 | IPV6 Limited | 06/02/2009 |
01737 462 | Nexbridge Communications Limited | 09/03/2012 |
01737 463 | Internexus Networks Limited | 22/11/2011 |
01737 464 | Invosys Limited | 17/05/2012 |
01737 465 | Minotaur Telecom Limited | 01/02/2013 |
01737 466 | Mars Communications Limited | 03/02/2009 |
01737 467 | Bicom Systems EURL | 01/03/2012 |
01737 469 | API Telecom Limited | 10/04/2012 |
01737 470 | Windsor Telecom Ltd | 22/07/2010 |
01737 471 | Numbergroup Utilities Ltd | 02/12/2010 |
01737 472 | Phone Co-Op Numbering Limited | 21/12/2010 |
01737 473 | ICC Networks Ltd | 16/04/2012 |
01737 474 | IP Wholesale Limited | 01/06/2017 |
01737 477 | CFL Communications Ltd | 21/07/2009 |
01737 478 | Hello Telecom (UK) Limited | 17/11/2011 |
01737 479 | TalkTalk Communications Limited | 21/05/2012 |
01737 480 | Telephone Box Limited | 18/11/2010 |
01737 481 | Ziron Limited | 31/07/2012 |
01737 482 | Content Guru Limited | 12/10/2012 |
01737 483 | IOVOX Limited | 04/07/2012 |
01737 485 | Sky UK Limited | 24/06/2013 |
01737 486 | Invoco Ltd | 25/04/2012 |
01737 487 | 24 SEVEN CLOUD COMMUNICATIONS LTD | 30/09/2019 |
01737 488 | Telappliant Ltd | 21/06/2010 |
01737 489 | Nationwide Telephone Assistance Ltd | 15/10/2007 |
01737 490 | Resilient PLC | 12/09/2011 |
01737 499 | Resilient PLC | 12/09/2011 |
01737 50 | Vodafone Ltd (Energis) | 26/05/2006 |
01737 510 | Linear Telecoms Limited | 18/10/2010 |
01737 511 | Sky UK Limited | 20/01/2016 |
01737 512 | I.T Communications Limited | 21/10/2016 |
01737 513 | Adepteo Limited | 06/12/2016 |
01737 514 | Sky UK Limited | 20/04/2017 |
01737 516 | TalkTalk Communications Limited | 02/05/2017 |
01737 517 | Gamma Telecom Holdings Ltd | 10/03/2017 |
01737 518 | Fuse 2 Communications Ltd | 03/07/2017 |
01737 520 | GTT-EMEA LTD | 13/10/2021 |
01737 523 | GTT-EMEA LTD | 13/10/2021 |
01737 524 | GTT-EMEA LTD | 13/10/2021 |
01737 525 | GTT-EMEA LTD | 13/10/2021 |
01737 527 | GTT-EMEA LTD | 13/10/2021 |
01737 529 | GTT-EMEA LTD | 13/10/2021 |
01737 53 | Redcentric Solutions Limited | 05/06/2015 |
01737 55 | BT | 15/07/1994 |
01737 568 | Served Up Limited | 01/03/2013 |
01737 569 | Served Up Limited | 01/03/2013 |
01737 570 | Six Degrees Technology Group Limited | 03/04/2020 |
01737 574 | Six Degrees Technology Group Limited | 03/04/2020 |
01737 58 | Verizon UK Limited | 03/08/2005 |
01737 59 | FleXtel Limited | 11/11/2005 |
01737 61 | Barritel Limited | 23/06/2006 |
01737 620 | Digitech Solutions Global Limited | 26/06/2012 |
01737 63 | Simwood eSMS Limited | 19/07/2006 |
01737 64 | BT | 15/07/1994 |
01737 65 | AQL Wholesale Ltd | 04/08/2006 |
01737 668 | TalkTalk Communications Limited | 31/08/2011 |
01737 669 | TalkTalk Communications Limited | 31/08/2011 |
01737 67 | Syntec Limited | 12/12/2005 |
01737 700 | Inclarity Communications Limited | 08/11/2012 |
01737 701 | Inclarity Communications Limited | 09/11/2012 |
01737 702 | Inclarity Communications Limited | 09/11/2012 |
01737 705 | Inclarity Communications Limited | 09/11/2012 |
01737 720 | Lumen Technologies UK Limited | 26/07/2011 |
01737 723 | Lumen Technologies UK Limited | 26/07/2011 |
01737 724 | Lumen Technologies UK Limited | 26/07/2011 |
01737 727 | Lumen Technologies UK Limited | 26/07/2011 |
01737 729 | Lumen Technologies UK Limited | 26/07/2011 |
01737 73 | Vodafone Ltd (C&W) | 10/09/2013 |
01737 742 | Affiniti Integrated Solutions Limited | 19/12/2011 |
01737 743 | Affiniti Integrated Solutions Limited | 19/12/2011 |
01737 744 | Affiniti Integrated Solutions Limited | 19/12/2011 |
01737 745 | Affiniti Integrated Solutions Limited | 19/12/2011 |
01737 747 | Affiniti Integrated Solutions Limited | 19/12/2011 |
01737 749 | Affiniti Integrated Solutions Limited | 19/12/2011 |
01737 75 | BT | 09/05/1995 |
01737 76 | BT | 15/07/1994 |
01737 77 | BT | 15/07/1994 |
01737 78 | BT | 15/07/1994 |
01737 79 | BT | 15/05/1995 |
01737 80 | TGL Services (UK) Ltd | 02/02/2015 |
01737 81 | BT | 15/07/1994 |
01737 82 | BT | 15/07/1994 |
01737 83 | BT | 15/07/1994 |
01737 84 | BT | 15/07/1994 |
01737 85 | BT | 15/07/1994 |
01737 860 | VoiceHost Limited | 09/12/2010 |
01737 87 | Invade International Ltd | 21/01/2016 |
01737 880 | Magrathea Telecommunications Limited | 18/11/2011 |
01737 881 | Magrathea Telecommunications Limited | 18/11/2011 |
01737 886 | Magrathea Telecommunications Limited | 18/11/2011 |
01737 887 | Magrathea Telecommunications Limited | 18/11/2011 |
01737 888 | Magrathea Telecommunications Limited | 18/11/2011 |
01737 889 | Magrathea Telecommunications Limited | 18/11/2011 |
01737 900 | Media Hawk Ltd | 10/04/2013 |
01737 901 | Sky UK Limited | 17/07/2013 |
01737 902 | Kalnet4U Ltd | 30/05/2013 |
01737 903 | Sky UK Limited | 15/01/2014 |
01737 904 | Redwood Technologies Ltd | 15/11/2018 |
01737 905 | iHub 2 Limited | 18/05/2016 |
01737 906 | Vonage Limited | 23/01/2015 |
01737 907 | Colt Technology Services | 12/09/2013 |
01737 908 | Intrado Cloud Solutions Limited | 19/02/2013 |
01737 909 | XoverX Ltd | 29/04/2013 |
01737 910 | BT | 05/02/2015 |
01737 911 | YayYay Limited | 24/04/2015 |
01737 912 | Affiniti Integrated Solutions Limited | 09/02/2015 |
01737 913 | Sky UK Limited | 18/02/2015 |
01737 914 | Metronet (UK) Limited | 21/05/2019 |
01737 916 | Media Hawk Ltd | 25/11/2015 |
01737 917 | Mintaka Limited | 15/03/2016 |
01737 918 | Number Services Ltd. | 22/11/2018 |
01737 919 | BT | 28/07/2015 |
01737 920 | Orbtalk Limited | 01/12/2017 |
01737 921 | Entanet International Ltd | 12/12/2017 |
01737 922 | Zapappi Ltd | 05/01/2018 |
01737 923 | Colt Technology Services | 03/07/2017 |
01737 924 | Gamma Telecom Holdings Ltd | 07/02/2018 |
01737 925 | Colt Technology Services | 23/07/2018 |
01737 926 | Gamma Telecom Holdings Ltd | 29/08/2018 |
01737 928 | Club Communications Ltd | 21/09/2018 |
01737 929 | IP Voice Networks Ltd | 20/09/2017 |
01737 930 | BT | 02/10/2018 |
01737 931 | Gamma Telecom Holdings Ltd | 24/05/2019 |
01737 932 | Sky UK Limited | 10/09/2019 |
01737 933 | ICUK Computing Services Limited | 12/08/2019 |
01737 934 | Dial 9 Communications Limited | 08/01/2020 |
01737 935 | 24 SEVEN CLOUD COMMUNICATIONS LTD | 21/01/2020 |
01737 936 | DIDWW Ireland Limited | 27/01/2020 |
01737 937 | SiPalto Ltd | 03/02/2020 |
01737 938 | Belgacom International Carrier Services SA | 09/04/2020 |
01737 939 | VOXYONDER NETWORK SERVICES UK LTD | 10/09/2020 |
01737 940 | Mi Telecom Limited | 03/07/2020 |
01737 941 | Lanonyx Telecom Limited | 10/08/2021 |
01737 942 | Sky UK Limited | 22/09/2021 |
01737 944 | Colt Technology Services | 09/03/2020 |
01737 946 | Gamma Telecom Holdings Ltd | 23/04/2020 |
01737 948 | Gamma Telecom Holdings Ltd | 08/02/2021 |
01737 949 | Gamma Telecom Holdings Ltd | 08/09/2020 |