01905 20 | BT | 15/07/1994 |
01905 21 | BT | 15/07/1994 |
01905 22 | BT | 15/07/1994 |
01905 23 | BT | 15/07/1994 |
01905 24 | BT | 15/07/1994 |
01905 25 | BT | 15/07/1994 |
01905 26 | BT | 15/07/1994 |
01905 27 | BT | 15/07/1994 |
01905 28 | BT | 15/07/1994 |
01905 29 | BT | 15/07/1994 |
01905 30 | TGL Services (UK) Ltd | 02/02/2015 |
01905 310 | Linear Telecoms Limited | 19/10/2010 |
01905 311 | Minotaur Telecom Limited | 01/02/2013 |
01905 312 | TalkTalk Communications Limited | 13/07/2011 |
01905 313 | Orbtalk Limited | 11/07/2011 |
01905 315 | Numbers Plus Ltd | 28/07/2011 |
01905 317 | Inet Telecoms Ltd (Voipfone) | 21/10/2011 |
01905 318 | Internexus Networks Limited | 22/11/2011 |
01905 319 | Sky UK Limited | 03/12/2013 |
01905 33 | BT | 15/07/1994 |
01905 34 | BT | 15/07/1994 |
01905 35 | BT | 15/07/1994 |
01905 36 | BT | 15/07/1994 |
01905 37 | BT | 15/07/1994 |
01905 38 | BT | 15/07/1994 |
01905 39 | BT | 15/07/1994 |
01905 401 | Affiniti Integrated Solutions Limited | 16/12/2011 |
01905 402 | Affiniti Integrated Solutions Limited | 16/12/2011 |
01905 403 | Affiniti Integrated Solutions Limited | 16/12/2011 |
01905 404 | Affiniti Integrated Solutions Limited | 16/12/2011 |
01905 405 | Affiniti Integrated Solutions Limited | 16/12/2011 |
01905 406 | Affiniti Integrated Solutions Limited | 16/12/2011 |
01905 409 | Affiniti Integrated Solutions Limited | 16/12/2011 |
01905 410 | Bicom Systems EURL | 01/03/2012 |
01905 411 | API Telecom Limited | 19/04/2012 |
01905 412 | TalkTalk Communications Limited | 21/05/2012 |
01905 413 | Hello Telecom (UK) Limited | 01/02/2012 |
01905 414 | Tuxtel Ltd | 21/12/2011 |
01905 416 | ICC Networks Ltd | 18/04/2012 |
01905 417 | IOVOX Limited | 04/07/2012 |
01905 418 | Sky UK Limited | 27/06/2013 |
01905 419 | Ziron Limited | 01/08/2012 |
01905 42 | BT | 15/07/1994 |
01905 430 | GTT-EMEA LTD | 13/10/2021 |
01905 431 | GTT-EMEA LTD | 13/10/2021 |
01905 432 | GTT-EMEA LTD | 13/10/2021 |
01905 435 | GTT-EMEA LTD | 13/10/2021 |
01905 45 | BT | 15/07/1994 |
01905 46 | Vodafone Ltd (C&W) | 09/09/2013 |
01905 480 | Vodafone Ltd (C&W) | 09/09/2013 |
01905 481 | Vodafone Ltd (C&W) | 09/09/2013 |
01905 482 | Vodafone Ltd (C&W) | 09/09/2013 |
01905 483 | Vodafone Ltd (C&W) | 09/09/2013 |
01905 484 | Vodafone Ltd (C&W) | 09/09/2013 |
01905 485 | Vodafone Ltd (C&W) | 09/09/2013 |
01905 486 | Vodafone Ltd (C&W) | 09/09/2013 |
01905 49 | FleXtel Limited | 21/10/2005 |
01905 50 | Vodafone Ltd (Energis) | 26/05/2006 |
01905 513 | Digital Space Group Limited | 12/04/2016 |
01905 52 | Redcentric Solutions Limited | 05/06/2015 |
01905 530 | Lumen Technologies UK Limited | 25/07/2011 |
01905 532 | Lumen Technologies UK Limited | 25/07/2011 |
01905 533 | Lumen Technologies UK Limited | 25/07/2011 |
01905 534 | Lumen Technologies UK Limited | 25/07/2011 |
01905 539 | Lumen Technologies UK Limited | 25/07/2011 |
01905 54 | Vodafone Ltd (C&W) | 01/04/2019 |
01905 554 | Sky UK Limited | 07/09/2015 |
01905 556 | I.T Communications Limited | 09/11/2015 |
01905 558 | Sky UK Limited | 30/03/2016 |
01905 559 | NFON UK Ltd | 29/04/2016 |
01905 56 | GCI Network Solutions Ltd | 02/05/2017 |
01905 570 | WAVECREST NETWORKS LIMITED | 16/12/2019 |
01905 571 | WAVECREST NETWORKS LIMITED | 16/12/2019 |
01905 590 | VoiceHost Limited | 22/06/2010 |
01905 591 | Nexbridge Communications Limited | 09/03/2012 |
01905 592 | Sky UK Limited | 27/06/2013 |
01905 600 | Six Degrees Technology Group Limited | 03/04/2020 |
01905 601 | Six Degrees Technology Group Limited | 03/04/2020 |
01905 604 | Six Degrees Technology Group Limited | 03/04/2020 |
01905 61 | BT | 15/07/1994 |
01905 62 | BT | 15/07/1994 |
01905 63 | TTNC Limited | 13/11/2013 |
01905 64 | BT | 15/07/1994 |
01905 650 | Inclarity Communications Limited | 08/11/2012 |
01905 651 | Inclarity Communications Limited | 08/11/2012 |
01905 652 | Inclarity Communications Limited | 08/11/2012 |
01905 655 | Inclarity Communications Limited | 08/11/2012 |
01905 67 | Gamma Telecom Holdings Ltd | 05/04/2004 |
01905 68 | BT | 03/07/1995 |
01905 690 | Resilient PLC | 05/01/2007 |
01905 691 | Vonage Limited | 27/01/2015 |
01905 692 | Localphone Limited | 23/05/2007 |
01905 693 | TelNG Limited | 01/03/2007 |
01905 694 | Virgin Media Limited | 04/09/2006 |
01905 695 | Digital Mail Limited | 02/02/2007 |
01905 697 | Spitfire Network Services Limited | 30/08/2006 |
01905 698 | Barritel Limited | 21/06/2007 |
01905 699 | Commi Holdings Limited | 21/11/2016 |
01905 70 | AQL Wholesale Ltd | 01/11/2004 |
01905 716 | Virgin Media Limited | 17/03/2016 |
01905 717 | Virgin Media Limited | 17/03/2016 |
01905 718 | Virgin Media Limited | 17/03/2016 |
01905 719 | Virgin Media Limited | 17/03/2016 |
01905 72 | BT | 15/07/1994 |
01905 73 | BT | 18/05/1995 |
01905 74 | BT | 15/07/1994 |
01905 75 | BT | 15/07/1994 |
01905 76 | BT | 15/07/1994 |
01905 77 | BT | 15/07/1994 |
01905 780 | TalkTalk Communications Limited | 07/08/2007 |
01905 781 | (AQ) LIMITED | 27/09/2012 |
01905 782 | Digital Space Group Limited | 15/03/2016 |
01905 783 | Voiceflex Limited | 30/07/2007 |
01905 784 | Net-Work Internet Ltd | 21/09/2007 |
01905 785 | Entanet International Ltd | 21/12/2007 |
01905 786 | TelXL Ltd | 12/02/2008 |
01905 787 | Invade International Ltd | 13/01/2016 |
01905 788 | VoIP-Un Limited | 08/11/2007 |
01905 789 | Nationwide Telephone Assistance Ltd | 22/10/2007 |
01905 79 | BT | 15/07/1994 |
01905 80 | Syntec Limited | 01/03/2005 |
01905 810 | Telecom2 Limited | 10/09/2009 |
01905 811 | Nodemax Limited | 11/07/2008 |
01905 812 | Digital Space Group Limited | 04/06/2008 |
01905 813 | TalkTalk Communications Limited | 14/02/2013 |
01905 814 | Voxbone SA | 29/09/2008 |
01905 816 | Served Up Limited | 20/10/2008 |
01905 819 | Metronet (UK) Limited | 21/05/2019 |
01905 82 | BT | 15/07/1994 |
01905 83 | BT | 15/07/1994 |
01905 84 | BT | 15/07/1994 |
01905 85 | Vodafone Ltd (C&W) | 09/09/2013 |
01905 860 | IPV6 Limited | 04/02/2009 |
01905 861 | Mars Communications Limited | 06/02/2009 |
01905 862 | Solutios Limited | 26/11/2008 |
01905 863 | TalkTalk Communications Limited | 26/01/2009 |
01905 864 | Sky UK Limited | 27/06/2013 |
01905 866 | Andrews & Arnold (Numbers) Ltd | 09/04/2009 |
01905 868 | Telecoms World PLC | 02/07/2009 |
01905 869 | Vectone Mobile Limited | 01/07/2009 |
01905 87 | BT | 15/07/1994 |
01905 880 | Magrathea Telecommunications Limited | 16/11/2011 |
01905 881 | Magrathea Telecommunications Limited | 16/11/2011 |
01905 885 | Magrathea Telecommunications Limited | 16/11/2011 |
01905 886 | Magrathea Telecommunications Limited | 16/11/2011 |
01905 887 | Magrathea Telecommunications Limited | 16/11/2011 |
01905 888 | Magrathea Telecommunications Limited | 16/11/2011 |
01905 889 | Magrathea Telecommunications Limited | 16/11/2011 |
01905 890 | CFL Communications Ltd | 21/07/2009 |
01905 892 | Verizon UK Limited | 01/10/2009 |
01905 893 | Nexus Telecommunications Limited | 07/10/2009 |
01905 895 | TeleWare Group PLC | 27/01/2010 |
01905 896 | 8x8 UK Limited | 19/02/2010 |
01905 897 | Buzz Networks Limited | 04/03/2010 |
01905 898 | Atomstream Limited | 12/04/2010 |
01905 899 | I-NET COMMUNICATIONS GROUP PLC | 14/01/2010 |
01905 900 | Invoco Ltd | 14/04/2010 |
01905 901 | Suretec Systems Ltd | 13/05/2010 |
01905 902 | Numbergroup Utilities Ltd | 02/11/2010 |
01905 903 | Calltracks Limited | 20/09/2013 |
01905 904 | Windsor Telecom Ltd | 22/07/2010 |
01905 905 | Simwood eSMS Limited | 03/08/2010 |
01905 906 | Core Telecom Limited | 06/08/2010 |
01905 907 | Citrus Telecommunications Ltd | 04/11/2010 |
01905 908 | Intrado Cloud Solutions Limited | 02/08/2010 |
01905 909 | Sky UK Limited | 28/06/2013 |
01905 910 | Telephone Box Limited | 10/12/2010 |
01905 912 | Phone Co-Op Numbering Limited | 23/12/2010 |
01905 914 | IP Wholesale Limited | 01/06/2017 |
01905 915 | Invosys Limited | 10/04/2012 |
01905 916 | Sky UK Limited | 08/09/2020 |
01905 917 | Gamma Telecom Holdings Ltd | 20/01/2021 |
01905 918 | Colt Technology Services | 30/11/2020 |
01905 919 | Mi Telecom Limited | 06/07/2020 |
01905 920 | Numbergroup Utilities Ltd | 29/04/2019 |
01905 921 | Sky UK Limited | 28/06/2013 |
01905 922 | Content Guru Limited | 11/10/2012 |
01905 923 | TalkTalk Communications Limited | 02/11/2012 |
01905 924 | Orange Business Holdings UK Limited | 27/12/2012 |
01905 926 | Media Hawk Ltd | 10/04/2013 |
01905 927 | Sky UK Limited | 03/12/2013 |
01905 928 | Kalnet4U Ltd | 04/06/2013 |
01905 929 | XoverX Ltd | 26/04/2013 |
01905 930 | BT | 24/10/2013 |
01905 932 | Colt Technology Services | 07/05/2015 |
01905 933 | iHub 2 Limited | 18/05/2016 |
01905 934 | Calltracks Limited | 29/07/2016 |
01905 935 | YayYay Limited | 24/04/2015 |
01905 936 | TalkTalk Communications Limited | 31/07/2014 |
01905 937 | Sky UK Limited | 15/08/2013 |
01905 938 | Sky UK Limited | 15/08/2013 |
01905 939 | Redwood Technologies Ltd | 15/11/2018 |
01905 940 | Belgacom International Carrier Services SA | 20/06/2016 |
01905 941 | Adepteo Limited | 29/11/2016 |
01905 942 | TalkTalk Communications Limited | 07/04/2017 |
01905 943 | Sky UK Limited | 20/04/2017 |
01905 944 | Mintaka Limited | 26/09/2016 |
01905 945 | Number Services Ltd. | 22/11/2018 |
01905 946 | IOVOX Limited | 31/01/2017 |
01905 947 | Gamma Telecom Holdings Ltd | 02/05/2017 |
01905 948 | IP Voice Networks Ltd | 20/09/2017 |
01905 949 | Fuse 2 Communications Ltd | 03/07/2017 |
01905 950 | Gamma Telecom Holdings Ltd | 08/03/2018 |
01905 951 | Telappliant Ltd | 05/04/2018 |
01905 952 | Club Communications Ltd | 13/08/2018 |
01905 953 | Gamma Telecom Holdings Ltd | 13/08/2018 |
01905 954 | BT | 21/09/2018 |
01905 955 | Colt Technology Services | 18/07/2018 |
01905 957 | TalkTalk Communications Limited | 10/06/2019 |
01905 958 | Gamma Telecom Holdings Ltd | 12/02/2019 |
01905 959 | DIDWW Ireland Limited | 15/10/2018 |
01905 960 | ICUK Computing Services Limited | 20/09/2019 |
01905 961 | 24 SEVEN CLOUD COMMUNICATIONS LTD | 27/01/2020 |
01905 962 | VOXYONDER NETWORK SERVICES UK LTD | 28/08/2020 |
01905 963 | BT | 10/01/2020 |
01905 964 | BT | 08/10/2020 |
01905 965 | SiPalto Ltd | 23/01/2020 |
01905 966 | Dial 9 Communications Limited | 08/01/2020 |
01905 967 | Gamma Telecom Holdings Ltd | 17/06/2020 |
01905 968 | TELNYX UK LIMITED | 07/05/2020 |
01905 969 | Gamma Telecom Holdings Ltd | 12/08/2019 |
01905 970 | Sky UK Limited | 22/09/2021 |
01905 972 | BT | 13/09/2021 |