01823 03 | FleXtel Limited | 24/10/2005 |
01823 20 | Redcentric Solutions Limited | 05/06/2015 |
01823 21 | Gamma Telecom Holdings Ltd | 05/04/2004 |
01823 220 | Lumen Technologies UK Limited | 09/09/1999 |
01823 223 | Lumen Technologies UK Limited | 09/09/1999 |
01823 225 | Lumen Technologies UK Limited | 09/09/1999 |
01823 226 | Lumen Technologies UK Limited | 09/09/1999 |
01823 229 | Lumen Technologies UK Limited | 09/09/1999 |
01823 23 | Affiniti Integrated Solutions Limited | 04/11/1998 |
01823 24 | AQL Wholesale Ltd | 01/11/2004 |
01823 25 | BT | 15/07/1994 |
01823 26 | Vodafone Ltd (Energis) | 26/05/2006 |
01823 27 | BT | 15/07/1994 |
01823 28 | BT | 15/07/1994 |
01823 290 | Linear Telecoms Limited | 18/10/2010 |
01823 291 | Internexus Networks Limited | 22/11/2011 |
01823 292 | Hello Telecom (UK) Limited | 23/11/2011 |
01823 293 | Bicom Systems EURL | 01/03/2012 |
01823 294 | ICC Networks Ltd | 17/04/2012 |
01823 296 | API Telecom Limited | 18/04/2012 |
01823 297 | Invoco Ltd | 01/05/2012 |
01823 298 | Content Guru Limited | 11/10/2012 |
01823 299 | Inet Telecoms Ltd (Voipfone) | 21/10/2011 |
01823 30 | BT | 15/07/1994 |
01823 32 | BT | 15/07/1994 |
01823 33 | BT | 15/07/1994 |
01823 34 | BT | 15/07/1994 |
01823 35 | BT | 15/07/1994 |
01823 36 | BT | 15/07/1994 |
01823 370 | Inclarity Communications Limited | 09/11/2012 |
01823 371 | Inclarity Communications Limited | 09/11/2012 |
01823 372 | Inclarity Communications Limited | 09/11/2012 |
01823 375 | Inclarity Communications Limited | 09/11/2012 |
01823 39 | GCI Network Solutions Ltd | 02/05/2017 |
01823 40 | BT | 15/07/1994 |
01823 41 | BT | 15/07/1994 |
01823 42 | BT | 15/07/1994 |
01823 43 | BT | 15/07/1994 |
01823 44 | BT | 15/07/1994 |
01823 45 | BT | 15/07/1994 |
01823 46 | BT | 15/07/1994 |
01823 47 | Magrathea Telecommunications Limited | 24/09/2004 |
01823 48 | BT | 15/07/1994 |
01823 49 | BT | 15/07/1994 |
01823 503 | Digital Space Group Limited | 12/04/2016 |
01823 51 | Commi Holdings Limited | 21/11/2016 |
01823 53 | TTNC Limited | 12/11/2013 |
01823 55 | Barritel Limited | 02/10/2006 |
01823 56 | TelNG Limited | 28/02/2007 |
01823 577 | Spitfire Network Services Limited | 11/11/2011 |
01823 580 | TalkTalk Communications Limited | 25/07/2018 |
01823 581 | ICUK Computing Services Limited | 12/08/2019 |
01823 582 | TRUESPEED COMMUNICATIONS LTD | 21/05/2019 |
01823 584 | 24 SEVEN CLOUD COMMUNICATIONS LTD | 22/01/2020 |
01823 585 | DIDWW Ireland Limited | 22/01/2019 |
01823 586 | Dial 9 Communications Limited | 08/01/2020 |
01823 587 | BT | 27/05/2020 |
01823 588 | Club Communications Ltd | 21/09/2018 |
01823 589 | Gamma Telecom Holdings Ltd | 17/06/2020 |
01823 590 | Resilient PLC | 18/05/2012 |
01823 591 | Resilient PLC | 18/05/2012 |
01823 599 | Resilient PLC | 18/05/2012 |
01823 60 | BT | 15/07/1994 |
01823 617 | TalkTalk Communications Limited | 20/01/2012 |
01823 618 | TalkTalk Communications Limited | 20/01/2012 |
01823 619 | TalkTalk Communications Limited | 20/01/2012 |
01823 62 | BT | 15/07/1994 |
01823 63 | Vodafone Ltd (Thus) | 25/01/2012 |
01823 640 | Vodafone Ltd (C&W) | 06/09/2013 |
01823 641 | Vodafone Ltd (C&W) | 06/09/2013 |
01823 642 | Vodafone Ltd (C&W) | 06/09/2013 |
01823 643 | Vodafone Ltd (C&W) | 06/09/2013 |
01823 644 | Vodafone Ltd (C&W) | 06/09/2013 |
01823 645 | Vodafone Ltd (C&W) | 06/09/2013 |
01823 649 | Vodafone Ltd (C&W) | 06/09/2013 |
01823 65 | BT | 08/07/1997 |
01823 66 | BT | 15/07/1994 |
01823 67 | BT | 15/07/1994 |
01823 68 | BT | 15/07/1994 |
01823 69 | BT | 15/07/1994 |
01823 700 | Localphone Limited | 14/05/2007 |
01823 701 | (AQ) LIMITED | 26/09/2012 |
01823 702 | Net-Work Internet Ltd | 21/09/2007 |
01823 703 | Voiceflex Limited | 27/09/2007 |
01823 704 | Nationwide Telephone Assistance Ltd | 22/10/2007 |
01823 705 | VoIP-Un Limited | 05/11/2007 |
01823 706 | Digital Space Group Limited | 15/03/2016 |
01823 707 | Telecom2 Limited | 10/09/2009 |
01823 708 | Digital Space Group Limited | 23/05/2008 |
01823 709 | Nodemax Limited | 15/07/2008 |
01823 710 | TalkTalk Communications Limited | 14/02/2013 |
01823 711 | Voxbone SA | 26/09/2008 |
01823 713 | Served Up Limited | 09/10/2008 |
01823 715 | Solutios Limited | 26/11/2008 |
01823 716 | Mars Communications Limited | 06/02/2009 |
01823 717 | IPV6 Limited | 13/02/2009 |
01823 718 | Intrado Cloud Solutions Limited | 02/08/2010 |
01823 719 | Invade International Ltd | 13/01/2016 |
01823 72 | Vodafone Ltd (C&W) | 06/09/2013 |
01823 730 | Andrews & Arnold (Numbers) Ltd | 02/04/2009 |
01823 731 | Vectone Mobile Limited | 01/07/2009 |
01823 732 | CFL Communications Ltd | 17/07/2009 |
01823 733 | Telecoms World PLC | 25/06/2009 |
01823 735 | Nexus Telecommunications Limited | 30/09/2009 |
01823 736 | WIGHTFIBRE LIMITED | 03/12/2009 |
01823 738 | I-NET COMMUNICATIONS GROUP PLC | 14/01/2010 |
01823 739 | TeleWare Group PLC | 26/01/2010 |
01823 740 | Buzz Networks Limited | 01/03/2010 |
01823 741 | Calltracks Limited | 22/01/2014 |
01823 742 | Atomstream Limited | 29/03/2010 |
01823 743 | Windsor Telecom Ltd | 22/07/2010 |
01823 744 | Suretec Systems Ltd | 13/05/2010 |
01823 745 | Numbergroup Utilities Ltd | 02/11/2010 |
01823 746 | Simwood eSMS Limited | 09/08/2010 |
01823 747 | VoiceHost Limited | 05/10/2010 |
01823 748 | Telephone Box Limited | 10/12/2010 |
01823 751 | Phone Co-Op Numbering Limited | 23/12/2010 |
01823 752 | Invosys Limited | 11/04/2012 |
01823 753 | Nexbridge Communications Limited | 09/03/2012 |
01823 755 | IP Wholesale Limited | 01/06/2017 |
01823 756 | Orbtalk Limited | 16/09/2011 |
01823 757 | Minotaur Telecom Limited | 01/02/2013 |
01823 760 | IOVOX Limited | 09/07/2012 |
01823 761 | Ziron Limited | 31/07/2012 |
01823 762 | TalkTalk Communications Limited | 13/08/2012 |
01823 763 | Media Hawk Ltd | 10/04/2013 |
01823 764 | Orange Business Holdings UK Limited | 16/01/2013 |
01823 765 | Kalnet4U Ltd | 03/06/2013 |
01823 766 | Numbergroup Utilities Ltd | 29/04/2019 |
01823 767 | Numbers Plus Ltd | 13/02/2013 |
01823 769 | XoverX Ltd | 26/04/2013 |
01823 770 | iHub 2 Limited | 18/05/2016 |
01823 771 | TalkTalk Communications Limited | 09/09/2014 |
01823 772 | Colt Technology Services | 07/05/2015 |
01823 773 | Redwood Technologies Ltd | 15/11/2018 |
01823 774 | Voiceflex Limited | 06/07/2015 |
01823 776 | Metronet (UK) Limited | 21/05/2019 |
01823 777 | Liquid 11 Limited | 13/06/2013 |
01823 778 | YayYay Limited | 24/04/2015 |
01823 779 | Adepteo Limited | 06/12/2016 |
01823 780 | Mintaka Limited | 25/11/2016 |
01823 781 | IP Voice Networks Ltd | 20/09/2017 |
01823 782 | Entanet International Ltd | 12/12/2017 |
01823 783 | Number Services Ltd. | 22/11/2018 |
01823 784 | Antheus Telecom Limited | 23/08/2017 |
01823 785 | Gamma Telecom Holdings Ltd | 03/08/2017 |
01823 786 | Fuse 2 Communications Ltd | 03/07/2017 |
01823 789 | I.T Communications Limited | 18/10/2016 |
01823 790 | Zapappi Ltd | 05/01/2018 |
01823 791 | Virgin Media Limited | 20/12/2017 |
01823 792 | Gamma Telecom Holdings Ltd | 03/04/2018 |
01823 793 | Colt Technology Services | 12/02/2018 |
01823 794 | Telappliant Ltd | 05/04/2018 |
01823 795 | Gamma Telecom Holdings Ltd | 06/06/2019 |
01823 796 | Gamma Telecom Holdings Ltd | 22/09/2021 |
01823 797 | VOXYONDER NETWORK SERVICES UK LTD | 10/09/2020 |
01823 798 | Belgacom International Carrier Services SA | 10/07/2020 |
01823 800 | Mi Telecom Limited | 06/07/2020 |
01823 801 | Jurassic Fibre Limited | 19/10/2020 |
01823 802 | BT | 28/01/2021 |
01823 804 | Gamma Telecom Holdings Ltd | 15/03/2021 |
01823 810 | Lanonyx Telecom Limited | 10/08/2021 |
01823 811 | Hyperoptic Ltd | 24/09/2021 |
01823 90 | TGL Services (UK) Ltd | 02/02/2015 |
01823 91 | FleXtel Limited | 31/10/2005 |
01823 924 | Six Degrees Technology Group Limited | 14/01/2020 |
01823 93 | Syntec Limited | 17/11/2005 |
01823 950 | Digitech Solutions Global Limited | 26/06/2012 |
01823 97 | Sky UK Limited | 28/06/2013 |
01823 980 | GTT-EMEA LTD | 13/10/2021 |
01823 985 | GTT-EMEA LTD | 13/10/2021 |
01823 986 | GTT-EMEA LTD | 13/10/2021 |
01823 987 | GTT-EMEA LTD | 13/10/2021 |
01823 989 | GTT-EMEA LTD | 13/10/2021 |