01923 20 | BT | 15/07/1994 |
01923 21 | BT | 15/07/1994 |
01923 22 | BT | 15/07/1994 |
01923 23 | BT | 15/07/1994 |
01923 24 | BT | 15/07/1994 |
01923 25 | BT | 15/07/1994 |
01923 26 | BT | 15/07/1994 |
01923 27 | BT | 15/07/1994 |
01923 28 | BT | 15/07/1994 |
01923 29 | BT | 15/07/1994 |
01923 312 | Vodafone Ltd (C&W) | 01/04/2019 |
01923 318 | Vodafone Ltd (Thus) | 26/01/2012 |
01923 319 | Vodafone Ltd (Thus) | 26/01/2012 |
01923 320 | Virgin Media Limited | 27/06/2012 |
01923 324 | Virgin Media Limited | 27/06/2012 |
01923 33 | Virgin Media Limited | 11/07/1995 |
01923 340 | Virgin Media Limited | 27/06/2012 |
01923 341 | Virgin Media Limited | 27/06/2012 |
01923 342 | Virgin Media Limited | 27/06/2012 |
01923 343 | Virgin Media Limited | 27/06/2012 |
01923 344 | Virgin Media Limited | 27/06/2012 |
01923 345 | Virgin Media Limited | 27/06/2012 |
01923 346 | Virgin Media Limited | 27/06/2012 |
01923 349 | Virgin Media Limited | 27/06/2012 |
01923 35 | Virgin Media Limited | 06/11/1996 |
01923 36 | Vodafone Ltd (C&W) | 05/09/2013 |
01923 370 | TGL Services (UK) Ltd | 02/02/2015 |
01923 371 | Sky UK Limited | 28/06/2013 |
01923 372 | Kalnet4U Ltd | 04/06/2013 |
01923 374 | TelNG Limited | 01/03/2007 |
01923 375 | TTNC Limited | 15/11/2013 |
01923 376 | Orange Business Holdings UK Limited | 26/02/2013 |
01923 377 | Virgin Media Limited | 12/01/2006 |
01923 378 | Colt Technology Services | 11/05/2006 |
01923 379 | Digitech Solutions Global Limited | 26/06/2012 |
01923 380 | VoIP-Un Limited | 08/11/2007 |
01923 381 | Voxbone SA | 29/01/2008 |
01923 382 | Digital Space Group Limited | 15/03/2016 |
01923 383 | TelXL Ltd | 12/02/2008 |
01923 384 | Telecom2 Limited | 10/09/2009 |
01923 385 | Digital Space Group Limited | 04/06/2008 |
01923 387 | Nodemax Limited | 11/07/2008 |
01923 388 | TalkTalk Communications Limited | 14/02/2013 |
01923 389 | Pulsant (Scotland) Limited | 23/03/2009 |
01923 39 | Vodafone Ltd (Energis) | 26/05/2006 |
01923 400 | Virgin Media Limited | 27/06/2012 |
01923 401 | Virgin Media Limited | 27/06/2012 |
01923 402 | Virgin Media Limited | 27/06/2012 |
01923 403 | Virgin Media Limited | 27/06/2012 |
01923 404 | Virgin Media Limited | 27/06/2012 |
01923 405 | Virgin Media Limited | 27/06/2012 |
01923 406 | Virgin Media Limited | 27/06/2012 |
01923 41 | Vodafone Ltd (C&W) | 05/09/2013 |
01923 42 | Vodafone Ltd (C&W) | 05/09/2013 |
01923 43 | Vodafone Ltd (C&W) | 05/09/2013 |
01923 44 | Virgin Media Limited | 16/05/1995 |
01923 45 | Virgin Media Limited | 18/03/2016 |
01923 46 | Virgin Media Limited | 16/05/1995 |
01923 47 | BT | 15/07/1994 |
01923 48 | BT | 15/07/1994 |
01923 49 | Virgin Media Limited | 16/05/1995 |
01923 504 | Six Degrees Technology Group Limited | 14/01/2020 |
01923 510 | TalkTalk Communications Limited | 31/08/2011 |
01923 517 | TalkTalk Communications Limited | 31/08/2011 |
01923 518 | TalkTalk Communications Limited | 31/08/2011 |
01923 519 | TalkTalk Communications Limited | 31/08/2011 |
01923 521 | VoiceHost Limited | 06/10/2010 |
01923 522 | Served Up Limited | 03/06/2008 |
01923 523 | Invade International Ltd | 13/01/2016 |
01923 524 | Redcentric Solutions Limited | 05/06/2015 |
01923 525 | Vodafone Ltd (C&W) | 11/08/2015 |
01923 526 | Vodafone Ltd (C&W) | 20/06/2013 |
01923 527 | FleXtel Limited | 16/11/2005 |
01923 528 | Localphone Limited | 23/05/2007 |
01923 531 | Barritec Limited | 04/10/2012 |
01923 532 | Barritel Limited | 08/10/2008 |
01923 533 | Solutios Limited | 26/11/2008 |
01923 534 | IPV6 Limited | 13/02/2009 |
01923 535 | Mars Communications Limited | 03/02/2009 |
01923 536 | Andrews & Arnold (Numbers) Ltd | 14/04/2009 |
01923 537 | Inet Telecoms Ltd (Voipfone) | 17/11/2008 |
01923 538 | Phone Co-Op Numbering Limited | 23/12/2010 |
01923 539 | Optify Mediaforce Limited | 14/05/2009 |
01923 540 | Telecoms World PLC | 02/07/2009 |
01923 541 | CFL Communications Ltd | 20/07/2009 |
01923 542 | Vectone Mobile Limited | 01/07/2009 |
01923 544 | Nexus Telecommunications Limited | 07/10/2009 |
01923 545 | BT | 17/11/2014 |
01923 547 | I-NET COMMUNICATIONS GROUP PLC | 14/01/2010 |
01923 548 | TeleWare Group PLC | 26/01/2010 |
01923 549 | Buzz Networks Limited | 01/03/2010 |
01923 550 | Atomstream Limited | 13/04/2010 |
01923 551 | Liquid 11 Limited | 19/04/2010 |
01923 552 | Suretec Systems Ltd | 13/05/2010 |
01923 553 | Numbergroup Utilities Ltd | 02/11/2010 |
01923 554 | TeleSurf Limited | 30/06/2010 |
01923 555 | Telappliant Ltd | 28/06/2010 |
01923 556 | Calltracks Limited | 20/09/2013 |
01923 557 | Core Telecom Limited | 06/08/2010 |
01923 558 | Media Telecom Ltd | 05/08/2010 |
01923 559 | Windsor Telecom Ltd | 22/07/2010 |
01923 560 | Sark Telecom B.V. | 11/08/2010 |
01923 561 | Plus Telecom Limited | 24/09/2010 |
01923 562 | Sky UK Limited | 26/06/2013 |
01923 564 | Vodafone Ltd (Energis) | 08/12/2010 |
01923 565 | Vodafone Ltd (Energis) | 08/12/2010 |
01923 566 | Daisy Communications Ltd | 27/10/2010 |
01923 567 | Vodafone Ltd (Energis) | 08/12/2010 |
01923 568 | Telephone Box Limited | 10/12/2010 |
01923 569 | Relax Telecom Limited | 15/08/2014 |
01923 571 | Invosys Limited | 10/04/2012 |
01923 572 | IP Wholesale Limited | 01/06/2017 |
01923 573 | Sky UK Limited | 26/06/2013 |
01923 574 | Firstsound Ltd | 11/04/2011 |
01923 575 | Minotaur Telecom Limited | 01/02/2013 |
01923 577 | Numbers Plus Ltd | 28/07/2011 |
01923 578 | Sky UK Limited | 26/06/2013 |
01923 579 | Media Hawk Ltd | 26/09/2011 |
01923 580 | 24 SEVEN CLOUD COMMUNICATIONS LTD | 30/09/2019 |
01923 581 | Internexus Networks Limited | 22/11/2011 |
01923 582 | Nexbridge Communications Limited | 09/01/2012 |
01923 583 | Hello Telecom (UK) Limited | 02/02/2012 |
01923 584 | Bicom Systems EURL | 01/03/2012 |
01923 585 | Calltracks Limited | 12/01/2017 |
01923 586 | TalkTalk Communications Limited | 24/11/2017 |
01923 587 | Gamma Telecom Holdings Ltd | 20/12/2016 |
01923 588 | IOVOX Limited | 31/01/2017 |
01923 589 | Gamma Telecom Holdings Ltd | 16/11/2017 |
01923 590 | TalkTalk Communications Limited | 14/09/2012 |
01923 591 | Sky UK Limited | 26/06/2013 |
01923 592 | Sky UK Limited | 26/06/2013 |
01923 593 | Sky UK Limited | 17/07/2013 |
01923 594 | Colt Technology Services | 05/03/2013 |
01923 595 | Intrado Cloud Solutions Limited | 15/01/2013 |
01923 597 | Sky UK Limited | 17/07/2013 |
01923 598 | XoverX Ltd | 26/04/2013 |
01923 599 | Content Guru Limited | 11/10/2012 |
01923 601 | Gamma Telecom Holdings Ltd | 31/01/2013 |
01923 602 | Gamma Telecom Holdings Ltd | 15/11/2012 |
01923 603 | Gamma Telecom Holdings Ltd | 15/11/2012 |
01923 604 | Gamma Telecom Holdings Ltd | 15/11/2012 |
01923 605 | Gamma Telecom Holdings Ltd | 15/11/2012 |
01923 606 | Gamma Telecom Holdings Ltd | 15/11/2012 |
01923 607 | Gamma Telecom Holdings Ltd | 15/11/2012 |
01923 608 | Gamma Telecom Holdings Ltd | 15/11/2012 |
01923 609 | Gamma Telecom Holdings Ltd | 15/11/2012 |
01923 61 | BT | 23/12/2004 |
01923 620 | Lumen Technologies UK Limited | 11/04/2006 |
01923 621 | Commi Holdings Limited | 21/11/2016 |
01923 622 | Lumen Technologies UK Limited | 11/04/2006 |
01923 623 | Lumen Technologies UK Limited | 11/04/2006 |
01923 624 | Simwood eSMS Limited | 19/07/2006 |
01923 625 | (AQ) LIMITED | 27/09/2012 |
01923 627 | Spitfire Network Services Limited | 27/06/2006 |
01923 628 | Vonage Limited | 21/01/2015 |
01923 629 | Resilient PLC | 05/01/2007 |
01923 63 | BT | 06/02/2003 |
01923 640 | GCI Network Solutions Ltd | 02/05/2017 |
01923 65 | BT | 22/10/1996 |
01923 66 | BT | 15/07/1994 |
01923 67 | BT | 15/07/1994 |
01923 68 | BT | 15/07/1994 |
01923 69 | BT | 04/03/1996 |
01923 70 | Affiniti Integrated Solutions Limited | 12/04/2000 |
01923 71 | BT | 15/07/1994 |
01923 72 | BT | 15/07/1994 |
01923 730 | Inclarity Communications Limited | 08/11/2012 |
01923 731 | Inclarity Communications Limited | 08/11/2012 |
01923 732 | Inclarity Communications Limited | 08/11/2012 |
01923 735 | Inclarity Communications Limited | 08/11/2012 |
01923 74 | Verizon UK Limited | 24/11/2004 |
01923 75 | AQL Wholesale Ltd | 01/11/2004 |
01923 76 | Syntec Limited | 16/11/2005 |
01923 77 | BT | 15/07/1994 |
01923 780 | Vodafone Ltd (C&W) | 05/09/2013 |
01923 781 | Vodafone Ltd (C&W) | 05/09/2013 |
01923 782 | Vodafone Ltd (C&W) | 05/09/2013 |
01923 783 | Vodafone Ltd (C&W) | 09/09/2013 |
01923 784 | Vodafone Ltd (C&W) | 09/09/2013 |
01923 785 | Vodafone Ltd (C&W) | 09/09/2013 |
01923 786 | Vodafone Ltd (C&W) | 09/09/2013 |
01923 787 | Vodafone Ltd (C&W) | 09/09/2013 |
01923 790 | GTT-EMEA LTD | 13/10/2021 |
01923 791 | GTT-EMEA LTD | 13/10/2021 |
01923 792 | GTT-EMEA LTD | 13/10/2021 |
01923 793 | GTT-EMEA LTD | 13/10/2021 |
01923 794 | GTT-EMEA LTD | 13/10/2021 |
01923 795 | GTT-EMEA LTD | 13/10/2021 |
01923 796 | GTT-EMEA LTD | 13/10/2021 |
01923 797 | GTT-EMEA LTD | 13/10/2021 |
01923 798 | GTT-EMEA LTD | 13/10/2021 |
01923 799 | GTT-EMEA LTD | 13/10/2021 |
01923 80 | BT | 15/07/1994 |
01923 81 | BT | 15/07/1994 |
01923 82 | BT | 15/07/1994 |
01923 83 | BT | 15/07/1994 |
01923 84 | BT | 15/07/1994 |
01923 85 | BT | 15/07/1994 |
01923 860 | Linear Telecoms Limited | 18/10/2010 |
01923 861 | Sky UK Limited | 26/06/2013 |
01923 862 | ICC Networks Ltd | 13/04/2012 |
01923 863 | ICC Networks Ltd | 18/04/2012 |
01923 864 | API Telecom Limited | 19/04/2012 |
01923 865 | Ziron Limited | 01/08/2012 |
01923 866 | Invoco Ltd | 22/05/2012 |
01923 867 | Numbergroup Utilities Ltd | 29/04/2019 |
01923 868 | IOVOX Limited | 04/07/2012 |
01923 869 | Sky UK Limited | 26/06/2013 |
01923 878 | Connect Telecom UK Limited | 19/07/2011 |
01923 879 | Connect Telecom UK Limited | 19/07/2011 |
01923 880 | Magrathea Telecommunications Limited | 17/11/2011 |
01923 881 | Magrathea Telecommunications Limited | 17/11/2011 |
01923 882 | Magrathea Telecommunications Limited | 17/11/2011 |
01923 883 | Magrathea Telecommunications Limited | 17/11/2011 |
01923 884 | Magrathea Telecommunications Limited | 17/11/2011 |
01923 886 | Magrathea Telecommunications Limited | 17/11/2011 |
01923 888 | Magrathea Telecommunications Limited | 17/11/2011 |
01923 889 | Magrathea Telecommunications Limited | 17/11/2011 |
01923 89 | BT | 15/07/1994 |
01923 900 | Net-Work Internet Ltd | 21/09/2007 |
01923 901 | Voiceflex Limited | 27/09/2007 |
01923 902 | Nationwide Telephone Assistance Ltd | 22/10/2007 |
01923 903 | TalkTalk Communications Limited | 02/05/2014 |
01923 904 | Sky UK Limited | 15/09/2014 |
01923 905 | iHub 2 Limited | 18/05/2016 |
01923 906 | Redcentric Solutions Limited | 05/06/2015 |
01923 908 | IOVOX Limited | 23/10/2014 |
01923 909 | Redwood Technologies Ltd | 15/11/2018 |
01923 910 | Gamma Telecom Holdings Ltd | 30/03/2015 |
01923 911 | YayYay Limited | 24/04/2015 |
01923 912 | Affiniti Integrated Solutions Limited | 18/02/2015 |
01923 913 | Colt Technology Services | 17/04/2015 |
01923 914 | Sky UK Limited | 19/05/2015 |
01923 915 | Fido Telecom Limited | 19/05/2015 |
01923 916 | Colt Technology Services | 05/12/2019 |
01923 917 | Metronet (UK) Limited | 21/05/2019 |
01923 918 | BT | 01/05/2020 |
01923 919 | Gamma Telecom Holdings Ltd | 05/05/2015 |
01923 920 | Gamma Telecom Holdings Ltd | 08/04/2016 |
01923 921 | Belgacom International Carrier Services SA | 20/06/2016 |
01923 923 | NFON UK Ltd | 29/04/2016 |
01923 924 | Hyperoptic Ltd | 31/08/2016 |
01923 925 | Adepteo Limited | 29/11/2016 |
01923 926 | Adepteo Limited | 29/11/2016 |
01923 927 | Gamma Telecom Holdings Ltd | 26/09/2016 |
01923 928 | Fuse 2 Communications Ltd | 03/07/2017 |
01923 929 | SiPalto Ltd | 26/06/2020 |
01923 930 | Orbtalk Limited | 01/12/2017 |
01923 931 | Entanet International Ltd | 12/12/2017 |
01923 932 | Gamma Telecom Holdings Ltd | 03/04/2018 |
01923 933 | Zapappi Ltd | 19/10/2017 |
01923 934 | Sky UK Limited | 03/07/2018 |
01923 935 | Club Communications Ltd | 13/08/2018 |
01923 936 | Gamma Telecom Holdings Ltd | 29/08/2018 |
01923 937 | DIDWW Ireland Limited | 15/10/2018 |
01923 938 | Antheus Telecom Limited | 06/02/2018 |
01923 939 | IP Voice Networks Ltd | 20/09/2017 |
01923 940 | BT | 04/07/2019 |
01923 941 | TalkTalk Communications Limited | 01/08/2019 |
01923 942 | Dial 9 Communications Limited | 18/10/2019 |
01923 943 | Colt Technology Services | 03/01/2019 |
01923 944 | Gamma Telecom Holdings Ltd | 04/01/2019 |
01923 945 | ICUK Computing Services Limited | 20/09/2019 |
01923 946 | BT | 12/04/2019 |
01923 947 | Gamma Telecom Holdings Ltd | 01/08/2019 |
01923 948 | Gamma Telecom Holdings Ltd | 03/05/2019 |
01923 950 | Mi Telecom Limited | 06/07/2020 |
01923 951 | Hyperoptic Ltd | 11/11/2019 |
01923 952 | VOXYONDER NETWORK SERVICES UK LTD | 28/08/2020 |
01923 953 | Gamma Telecom Holdings Ltd | 17/06/2020 |
01923 954 | Gamma Telecom Holdings Ltd | 04/11/2019 |
01923 955 | BT | 12/12/2007 |
01923 956 | BT | 12/12/2007 |
01923 957 | BT | 12/12/2007 |
01923 958 | BT | 12/12/2007 |
01923 959 | TELNYX UK LIMITED | 07/05/2020 |
01923 960 | Sky UK Limited | 08/09/2020 |
01923 961 | Twilio Ireland Limited | 13/10/2020 |
01923 962 | BT | 25/11/2020 |
01923 963 | Colt Technology Services | 30/11/2020 |
01923 964 | Gamma Telecom Holdings Ltd | 25/11/2020 |
01923 965 | Colt Technology Services | 21/07/2021 |
01923 966 | Lanonyx Telecom Limited | 10/08/2021 |
01923 969 | Gamma Telecom Holdings Ltd | 31/03/2021 |
01923 971 | Sky UK Limited | 19/10/2015 |
01923 972 | Sky UK Limited | 19/10/2015 |
01923 973 | I.T Communications Limited | 09/11/2015 |
01923 974 | Mintaka Limited | 12/05/2016 |
01923 975 | Gamma Telecom Holdings Ltd | 02/08/2017 |
01923 976 | Number Services Ltd. | 22/11/2018 |
01923 977 | AQL Wholesale Ltd | 01/06/2015 |
01923 979 | Gamma Telecom Holdings Ltd | 11/06/2015 |