01392 14 | Virgin Media Limited | 14/03/2016 |
01392 18 | BT | 19/05/2003 |
01392 20 | Virgin Media Limited | 14/03/2016 |
01392 21 | BT | 15/07/1994 |
01392 22 | BT | 15/07/1994 |
01392 230 | Inclarity Communications Limited | 06/11/2012 |
01392 231 | Inclarity Communications Limited | 06/11/2012 |
01392 232 | Inclarity Communications Limited | 06/11/2012 |
01392 235 | Inclarity Communications Limited | 06/11/2012 |
01392 240 | Magrathea Telecommunications Limited | 28/01/2010 |
01392 241 | Magrathea Telecommunications Limited | 28/01/2010 |
01392 242 | Plus Telecom Limited | 24/09/2010 |
01392 243 | Numbergroup Utilities Ltd | 04/11/2010 |
01392 244 | Invoco Ltd | 14/07/2011 |
01392 245 | Numbers Plus Ltd | 28/07/2011 |
01392 246 | Internexus Networks Limited | 21/11/2011 |
01392 247 | Magrathea Telecommunications Limited | 28/01/2010 |
01392 248 | Magrathea Telecommunications Limited | 28/01/2010 |
01392 249 | Magrathea Telecommunications Limited | 28/01/2010 |
01392 25 | BT | 07/02/1997 |
01392 26 | BT | 15/07/1994 |
01392 27 | BT | 04/06/1996 |
01392 28 | BT | 15/07/1994 |
01392 29 | BT | 15/07/1994 |
01392 300 | Vodafone Ltd (C&W) | 14/10/2013 |
01392 301 | Gamma Telecom Holdings Ltd | 29/08/2018 |
01392 302 | BT | 27/06/2019 |
01392 303 | DIDWW Ireland Limited | 15/10/2018 |
01392 304 | Colt Technology Services | 17/01/2019 |
01392 306 | TalkTalk Communications Limited | 22/03/2019 |
01392 307 | Gamma Telecom Holdings Ltd | 12/04/2019 |
01392 308 | Vodafone Ltd (C&W) | 14/10/2013 |
01392 309 | Vodafone Ltd (C&W) | 14/10/2013 |
01392 31 | Vodafone Ltd (C&W) | 06/09/2013 |
01392 320 | Jurassic Fibre Limited | 19/10/2020 |
01392 321 | Twilio Ireland Limited | 13/10/2020 |
01392 322 | BT | 08/10/2020 |
01392 323 | BT | 27/10/2020 |
01392 324 | Vodafone Ltd (C&W) | 01/04/2019 |
01392 325 | Colt Technology Services | 19/02/2021 |
01392 326 | Gamma Telecom Holdings Ltd | 22/09/2021 |
01392 329 | Vodafone Ltd (Thus) | 13/01/2012 |
01392 33 | Affiniti Integrated Solutions Limited | 30/06/1998 |
01392 34 | Gamma Telecom Holdings Ltd | 05/04/2004 |
01392 35 | BT | 22/03/1999 |
01392 36 | BT | 15/07/1994 |
01392 370 | Lumen Technologies UK Limited | 16/03/2010 |
01392 374 | Lumen Technologies UK Limited | 16/03/2010 |
01392 377 | Lumen Technologies UK Limited | 16/03/2010 |
01392 379 | Lumen Technologies UK Limited | 16/03/2010 |
01392 38 | BT | 15/07/1994 |
01392 40 | BT | 15/07/1994 |
01392 41 | BT | 15/07/1994 |
01392 42 | BT | 15/07/1994 |
01392 43 | BT | 15/07/1994 |
01392 44 | BT | 15/07/1994 |
01392 45 | BT | 15/07/1994 |
01392 46 | BT | 15/07/1994 |
01392 47 | BT | 15/07/1994 |
01392 48 | BT | 08/07/1997 |
01392 49 | BT | 15/07/1994 |
01392 50 | Verizon UK Limited | 03/08/2005 |
01392 51 | FleXtel Limited | 20/10/2005 |
01392 520 | Six Degrees Technology Group Limited | 14/01/2020 |
01392 521 | Six Degrees Technology Group Limited | 14/01/2020 |
01392 522 | Six Degrees Technology Group Limited | 14/01/2020 |
01392 523 | Six Degrees Technology Group Limited | 14/01/2020 |
01392 524 | Six Degrees Technology Group Limited | 14/01/2020 |
01392 531 | Gamma Telecom Holdings Ltd | 29/02/2016 |
01392 532 | Belgacom International Carrier Services SA | 20/06/2016 |
01392 534 | Sky UK Limited | 22/07/2016 |
01392 535 | Dial 9 Communications Limited | 23/05/2016 |
01392 536 | Calltracks Limited | 29/07/2016 |
01392 537 | Gamma Telecom Holdings Ltd | 26/09/2016 |
01392 538 | Mintaka Limited | 12/05/2016 |
01392 539 | Gamma Telecom Holdings Ltd | 03/08/2017 |
01392 540 | Hello Telecom (UK) Limited | 09/11/2011 |
01392 541 | GCI Network Solutions Ltd | 30/03/2017 |
01392 545 | ICUK Computing Services Limited | 12/08/2019 |
01392 546 | SiPalto Ltd | 05/11/2019 |
01392 547 | BT | 09/12/2019 |
01392 548 | 24 SEVEN CLOUD COMMUNICATIONS LTD | 17/01/2020 |
01392 549 | Gamma Telecom Holdings Ltd | 02/07/2019 |
01392 555 | Digital Mail Limited | 10/03/2010 |
01392 560 | Vodafone Ltd (C&W) | 06/09/2013 |
01392 561 | Vodafone Ltd (C&W) | 06/09/2013 |
01392 562 | Vodafone Ltd (C&W) | 06/09/2013 |
01392 563 | Vodafone Ltd (C&W) | 06/09/2013 |
01392 564 | Vodafone Ltd (C&W) | 06/09/2013 |
01392 565 | Vodafone Ltd (C&W) | 06/09/2013 |
01392 566 | Vodafone Ltd (C&W) | 06/09/2013 |
01392 570 | Digitech Solutions Global Limited | 22/06/2012 |
01392 571 | Media Hawk Ltd | 23/10/2017 |
01392 572 | Entanet International Ltd | 05/12/2017 |
01392 573 | Gamma Telecom Holdings Ltd | 08/03/2018 |
01392 574 | BT | 26/06/2018 |
01392 575 | Colt Technology Services | 07/02/2018 |
01392 576 | Gamma Telecom Holdings Ltd | 17/12/2018 |
01392 577 | Zapappi Ltd | 05/01/2018 |
01392 578 | Telecom 10 Ltd | 30/05/2018 |
01392 579 | Club Communications Ltd | 03/07/2018 |
01392 58 | WAVECREST NETWORKS LIMITED | 16/12/2019 |
01392 59 | TTNC Limited | 25/11/2013 |
01392 60 | BT | 15/07/1994 |
01392 610 | Redcentric Solutions Limited | 05/06/2015 |
01392 612 | Redcentric Solutions Limited | 05/06/2015 |
01392 616 | Redcentric Solutions Limited | 05/06/2015 |
01392 619 | Redcentric Solutions Limited | 05/06/2015 |
01392 62 | TGL Services (UK) Ltd | 02/02/2015 |
01392 63 | Citrus Telecommunications Ltd | 02/08/2005 |
01392 640 | VoiceHost Limited | 17/09/2010 |
01392 644 | Lanonyx Telecom Limited | 10/08/2021 |
01392 649 | Hyperoptic Ltd | 24/09/2021 |
01392 653 | Digital Space Group Limited | 12/04/2016 |
01392 66 | Virgin Media Limited | 14/03/2016 |
01392 67 | Virgin Media Limited | 14/03/2016 |
01392 68 | Virgin Media Limited | 14/03/2016 |
01392 69 | AQL Wholesale Ltd | 01/11/2004 |
01392 700 | Adepteo Limited | 17/01/2017 |
01392 701 | I.T Communications Limited | 25/04/2017 |
01392 702 | Number Services Ltd. | 22/11/2018 |
01392 703 | IP Voice Networks Ltd | 20/09/2017 |
01392 704 | Sky UK Limited | 06/10/2017 |
01392 705 | Antheus Telecom Limited | 23/08/2017 |
01392 706 | Fuse 2 Communications Ltd | 03/07/2017 |
01392 710 | Linear Telecoms Limited | 08/10/2010 |
01392 711 | Mi Telecom Limited | 03/07/2020 |
01392 712 | Colt Technology Services | 14/04/2020 |
01392 713 | SETERA UK LIMITED | 17/07/2020 |
01392 714 | VOXYONDER NETWORK SERVICES UK LTD | 28/08/2020 |
01392 715 | Gamma Telecom Holdings Ltd | 19/08/2020 |
01392 716 | Gamma Telecom Holdings Ltd | 28/01/2021 |
01392 717 | Voiceflex Limited | 02/07/2020 |
01392 718 | TELNYX UK LIMITED | 07/05/2020 |
01392 719 | Gamma Telecom Holdings Ltd | 13/02/2020 |
01392 72 | Virgin Media Limited | 14/03/2016 |
01392 757 | TalkTalk Communications Limited | 20/01/2010 |
01392 758 | TalkTalk Communications Limited | 20/01/2010 |
01392 759 | TalkTalk Communications Limited | 20/01/2010 |
01392 762 | Vodafone Ltd (C&W) | 18/06/2013 |
01392 770 | GCI Network Solutions Ltd | 25/04/2017 |
01392 771 | GCI Network Solutions Ltd | 25/04/2017 |
01392 780 | Syntec Limited | 13/07/2010 |
01392 781 | Syntec Limited | 13/07/2010 |
01392 782 | Syntec Limited | 13/07/2010 |
01392 783 | Syntec Limited | 13/07/2010 |
01392 784 | Syntec Limited | 13/07/2010 |
01392 790 | BT | 24/10/2013 |
01392 791 | TalkTalk Communications Limited | 09/09/2014 |
01392 793 | Vonage Limited | 23/01/2015 |
01392 794 | Sky UK Limited | 26/02/2015 |
01392 795 | Sky UK Limited | 07/09/2015 |
01392 796 | Colt Technology Services | 22/04/2015 |
01392 797 | Gamma Telecom Holdings Ltd | 30/03/2015 |
01392 798 | Gamma Telecom Holdings Ltd | 17/08/2015 |
01392 799 | Redwood Technologies Ltd | 15/11/2018 |
01392 807 | Served Up Limited | 29/06/2010 |
01392 808 | Served Up Limited | 29/06/2010 |
01392 809 | Served Up Limited | 29/06/2010 |
01392 81 | BT | 15/07/1994 |
01392 82 | BT | 15/07/1994 |
01392 83 | BT | 15/07/1994 |
01392 84 | BT | 15/07/1994 |
01392 85 | BT | 15/07/1994 |
01392 86 | BT | 15/07/1994 |
01392 87 | BT | 15/07/1994 |
01392 88 | BT | 15/07/1994 |
01392 89 | Vodafone Ltd (Energis) | 26/05/2006 |
01392 900 | iHub 2 Limited | 18/05/2016 |
01392 901 | Barritel Limited | 02/11/2006 |
01392 903 | Resilient PLC | 20/12/2006 |
01392 904 | TelNG Limited | 27/02/2007 |
01392 905 | Localphone Limited | 03/05/2007 |
01392 907 | Spitfire Network Services Limited | 28/11/2006 |
01392 908 | Voiceflex Limited | 30/07/2007 |
01392 909 | Commi Holdings Limited | 21/11/2016 |
01392 910 | (AQ) LIMITED | 19/10/2011 |
01392 911 | VoIP-Un Limited | 29/10/2007 |
01392 912 | Invade International Ltd | 12/01/2016 |
01392 913 | Digital Space Group Limited | 30/11/2007 |
01392 914 | Voxbone SA | 28/11/2007 |
01392 915 | TelXL Ltd | 12/02/2008 |
01392 916 | Telecom2 Limited | 11/09/2009 |
01392 918 | Nationwide Telephone Assistance Ltd | 10/07/2008 |
01392 919 | Nodemax Limited | 11/07/2008 |
01392 920 | TalkTalk Communications Limited | 12/02/2013 |
01392 922 | Net-Work Internet Ltd | 01/08/2008 |
01392 923 | Solutios Limited | 06/10/2008 |
01392 925 | YayYay Limited | 23/04/2015 |
01392 926 | Sky UK Limited | 02/07/2013 |
01392 927 | Inet Telecoms Ltd (Voipfone) | 18/11/2008 |
01392 928 | Digital Space Group Limited | 15/03/2016 |
01392 929 | Mars Communications Limited | 12/02/2009 |
01392 930 | IPV6 Limited | 04/02/2009 |
01392 931 | Telecoms World PLC | 13/03/2009 |
01392 932 | Chess Limited | 06/04/2018 |
01392 933 | Andrews & Arnold (Numbers) Ltd | 05/03/2009 |
01392 934 | Nexus Telecommunications Limited | 07/04/2009 |
01392 935 | Dynamic Mobile Billing Limited | 08/04/2009 |
01392 937 | Gamma Telecom Holdings Ltd | 11/03/2021 |
01392 938 | GTT-EMEA LTD | 14/10/2021 |
01392 939 | Telephone Box Limited | 18/11/2010 |
01392 940 | Vectone Mobile Limited | 29/06/2009 |
01392 941 | M247 Ltd | 19/05/2015 |
01392 943 | CFL Communications Ltd | 24/09/2009 |
01392 944 | TeleWare Group PLC | 25/09/2009 |
01392 946 | WIGHTFIBRE LIMITED | 03/12/2009 |
01392 947 | GCI Network Solutions Ltd | 19/04/2017 |
01392 948 | I-NET COMMUNICATIONS GROUP PLC | 12/01/2010 |
01392 949 | Buzz Networks Limited | 01/03/2010 |
01392 950 | Minotaur Telecom Limited | 20/02/2013 |
01392 951 | Atomstream Limited | 22/03/2010 |
01392 952 | Liquid 11 Limited | 20/04/2010 |
01392 953 | Telappliant Ltd | 01/06/2010 |
01392 954 | Calltracks Limited | 20/09/2013 |
01392 955 | Suretec Systems Ltd | 05/05/2010 |
01392 956 | Windsor Telecom Ltd | 20/07/2010 |
01392 957 | Intrado Cloud Solutions Limited | 02/08/2010 |
01392 958 | Core Telecom Limited | 05/08/2010 |
01392 959 | TeleSurf Limited | 30/06/2010 |
01392 961 | Phone Co-Op Numbering Limited | 22/12/2010 |
01392 963 | Invosys Limited | 09/07/2012 |
01392 964 | IP Wholesale Limited | 01/06/2017 |
01392 965 | Firstsound Ltd | 11/04/2011 |
01392 966 | TalkTalk Communications Limited | 09/06/2011 |
01392 968 | Orbtalk Limited | 11/07/2011 |
01392 969 | Sky UK Limited | 02/07/2013 |
01392 971 | Nexbridge Communications Limited | 10/01/2012 |
01392 972 | Bicom Systems EURL | 02/03/2012 |
01392 973 | API Telecom Limited | 27/03/2012 |
01392 974 | ICC Networks Ltd | 13/04/2012 |
01392 975 | Sky UK Limited | 02/07/2013 |
01392 976 | IOVOX Limited | 02/07/2012 |
01392 977 | Tuxtel Ltd | 21/12/2011 |
01392 978 | Orange Business Holdings UK Limited | 13/07/2012 |
01392 979 | Ziron Limited | 30/07/2012 |
01392 980 | Sky UK Limited | 02/07/2013 |
01392 982 | Simwood eSMS Limited | 05/04/2013 |
01392 983 | Media Hawk Ltd | 11/04/2013 |
01392 984 | Kalnet4U Ltd | 17/05/2013 |
01392 986 | Sky UK Limited | 21/08/2013 |
01392 987 | XoverX Ltd | 30/04/2013 |
01392 989 | Content Guru Limited | 12/10/2012 |