01722 21 | TelNG Limited | 28/02/2007 |
01722 22 | Localphone Limited | 14/05/2007 |
01722 237 | TalkTalk Communications Limited | 19/01/2012 |
01722 238 | TalkTalk Communications Limited | 19/01/2012 |
01722 239 | TalkTalk Communications Limited | 19/01/2012 |
01722 24 | (AQ) LIMITED | 12/09/2012 |
01722 25 | Invade International Ltd | 20/01/2016 |
01722 26 | Commi Holdings Limited | 21/11/2016 |
01722 27 | Voiceflex Limited | 30/07/2007 |
01722 28 | Nationwide Telephone Assistance Ltd | 15/10/2007 |
01722 290 | Resilient PLC | 18/05/2012 |
01722 291 | Resilient PLC | 18/05/2012 |
01722 299 | Resilient PLC | 18/05/2012 |
01722 305 | GTT-EMEA LTD | 13/10/2021 |
01722 306 | GTT-EMEA LTD | 13/10/2021 |
01722 307 | GTT-EMEA LTD | 13/10/2021 |
01722 31 | BT | 15/07/1994 |
01722 32 | BT | 15/07/1994 |
01722 33 | BT | 15/07/1994 |
01722 34 | BT | 17/12/1997 |
01722 353 | Digital Space Group Limited | 12/04/2016 |
01722 361 | Inclarity Communications Limited | 08/11/2012 |
01722 362 | Inclarity Communications Limited | 08/11/2012 |
01722 365 | Inclarity Communications Limited | 08/11/2012 |
01722 38 | FleXtel Limited | 02/06/2011 |
01722 39 | Vodafone Ltd (C&W) | 09/09/2013 |
01722 41 | BT | 15/07/1994 |
01722 42 | BT | 15/07/1994 |
01722 43 | BT | 15/07/1994 |
01722 44 | Gamma Telecom Holdings Ltd | 20/04/2004 |
01722 45 | TGL Services (UK) Ltd | 02/02/2015 |
01722 460 | Linear Telecoms Limited | 18/10/2010 |
01722 461 | Minotaur Telecom Limited | 04/02/2013 |
01722 462 | Internexus Networks Limited | 22/11/2011 |
01722 463 | Hello Telecom (UK) Limited | 03/01/2012 |
01722 465 | Bicom Systems EURL | 01/03/2012 |
01722 466 | Simwood eSMS Limited | 01/02/2012 |
01722 467 | API Telecom Limited | 10/04/2012 |
01722 468 | Citrus Telecommunications Ltd | 28/02/2012 |
01722 469 | ICC Networks Ltd | 16/04/2012 |
01722 48 | TTNC Limited | 14/11/2013 |
01722 49 | Barritel Limited | 23/06/2006 |
01722 50 | Virgin Media Limited | 11/03/1996 |
01722 510 | VoiceHost Limited | 05/10/2010 |
01722 512 | Invoco Ltd | 25/04/2012 |
01722 513 | Orange Business Holdings UK Limited | 13/07/2012 |
01722 514 | Content Guru Limited | 12/10/2012 |
01722 515 | IOVOX Limited | 04/07/2012 |
01722 516 | Ziron Limited | 31/07/2012 |
01722 517 | Media Hawk Ltd | 10/04/2013 |
01722 518 | Intrado Cloud Solutions Limited | 19/02/2013 |
01722 519 | Storacall Technology Limited | 11/04/2013 |
01722 52 | Redcentric Solutions Limited | 05/06/2015 |
01722 530 | Six Degrees Technology Group Limited | 14/01/2020 |
01722 532 | Six Degrees Technology Group Limited | 14/01/2020 |
01722 534 | Six Degrees Technology Group Limited | 14/01/2020 |
01722 540 | Entanet International Ltd | 12/12/2017 |
01722 541 | Calltracks Limited | 19/06/2017 |
01722 542 | NFON UK Ltd | 18/07/2018 |
01722 543 | Club Communications Ltd | 21/09/2018 |
01722 544 | Number Services Ltd. | 22/11/2018 |
01722 545 | I.T Communications Limited | 12/06/2017 |
01722 546 | Zapappi Ltd | 05/01/2018 |
01722 547 | Colt Technology Services | 12/08/2019 |
01722 548 | Gamma Telecom Holdings Ltd | 01/08/2019 |
01722 549 | IP Voice Networks Ltd | 20/09/2017 |
01722 55 | Virgin Media Limited | 11/03/1996 |
01722 56 | Magrathea Telecommunications Limited | 24/09/2004 |
01722 57 | Vodafone Ltd (Energis) | 26/05/2006 |
01722 58 | AQL Wholesale Ltd | 04/08/2006 |
01722 597 | Spitfire Network Services Limited | 11/11/2011 |
01722 60 | VoIP-Un Limited | 01/11/2007 |
01722 61 | Digital Space Group Limited | 15/03/2016 |
01722 62 | Affiniti Integrated Solutions Limited | 22/11/2007 |
01722 630 | Nodemax Limited | 17/07/2008 |
01722 631 | TalkTalk Communications Limited | 13/02/2013 |
01722 632 | Inet Telecoms Ltd (Voipfone) | 18/11/2008 |
01722 633 | Net-Work Internet Ltd | 23/06/2008 |
01722 635 | Solutios Limited | 25/11/2008 |
01722 636 | Telecom2 Limited | 10/09/2009 |
01722 638 | Voxbone SA | 25/09/2008 |
01722 639 | Served Up Limited | 22/10/2008 |
01722 640 | IPV6 Limited | 06/02/2009 |
01722 641 | Mars Communications Limited | 19/02/2009 |
01722 642 | Chess Limited | 06/04/2018 |
01722 643 | Andrews & Arnold (Numbers) Ltd | 27/03/2009 |
01722 644 | Optify Mediaforce Limited | 13/05/2009 |
01722 646 | Telecoms World PLC | 08/06/2009 |
01722 647 | Nexus Telecommunications Limited | 30/09/2009 |
01722 648 | CFL Communications Ltd | 15/07/2009 |
01722 649 | Vectone Mobile Limited | 01/07/2009 |
01722 650 | GCI Network Solutions Ltd | 25/04/2017 |
01722 651 | Verizon UK Limited | 06/11/2009 |
01722 652 | Verizon UK Limited | 06/11/2009 |
01722 653 | WIGHTFIBRE LIMITED | 16/12/2009 |
01722 654 | 8x8 UK Limited | 24/02/2010 |
01722 655 | TeleWare Group PLC | 07/01/2010 |
01722 656 | Gamma Telecom Holdings Ltd | 11/03/2021 |
01722 657 | I-NET COMMUNICATIONS GROUP PLC | 13/01/2010 |
01722 658 | Buzz Networks Limited | 01/03/2010 |
01722 659 | Atomstream Limited | 26/03/2010 |
01722 660 | Digitech Solutions Global Limited | 28/04/2010 |
01722 661 | Suretec Systems Ltd | 12/05/2010 |
01722 662 | Calltracks Limited | 23/09/2013 |
01722 663 | Core Telecom Limited | 06/08/2010 |
01722 664 | Windsor Telecom Ltd | 22/07/2010 |
01722 665 | Numbergroup Utilities Ltd | 02/12/2010 |
01722 666 | Telappliant Ltd | 21/06/2010 |
01722 667 | Telephone Box Limited | 09/12/2010 |
01722 669 | Phone Co-Op Numbering Limited | 21/12/2010 |
01722 671 | Invosys Limited | 17/05/2012 |
01722 672 | IP Wholesale Limited | 01/06/2017 |
01722 673 | 24 SEVEN CLOUD COMMUNICATIONS LTD | 30/09/2019 |
01722 674 | Vodafone Ltd (C&W) | 09/09/2013 |
01722 675 | Nexbridge Communications Limited | 09/03/2012 |
01722 677 | Orbtalk Limited | 11/07/2011 |
01722 678 | Numbers Plus Ltd | 28/07/2011 |
01722 679 | Sky UK Limited | 21/06/2013 |
01722 680 | Sky UK Limited | 30/07/2014 |
01722 682 | Kalnet4U Ltd | 30/05/2013 |
01722 683 | Sky UK Limited | 20/06/2016 |
01722 684 | Colt Technology Services | 03/09/2014 |
01722 685 | YayYay Limited | 24/04/2015 |
01722 686 | iHub 2 Limited | 18/05/2016 |
01722 687 | Metronet (UK) Limited | 21/05/2019 |
01722 688 | Redwood Technologies Ltd | 15/11/2018 |
01722 689 | XoverX Ltd | 29/04/2013 |
01722 690 | Alnitak GmbH | 06/04/2016 |
01722 691 | Gamma Telecom Holdings Ltd | 04/12/2015 |
01722 692 | Adepteo Limited | 06/12/2016 |
01722 694 | Fuse 2 Communications Ltd | 03/07/2017 |
01722 695 | DIDWW Ireland Limited | 21/01/2019 |
01722 696 | BT | 26/10/2020 |
01722 697 | BT | 07/12/2020 |
01722 698 | Dial 9 Communications Limited | 12/05/2016 |
01722 700 | Lanonyx Telecom Limited | 10/08/2021 |
01722 701 | Sky UK Limited | 22/09/2021 |
01722 702 | Colt Technology Services | 22/04/2021 |
01722 705 | Gamma Telecom Holdings Ltd | 22/02/2021 |
01722 707 | VOXYONDER NETWORK SERVICES UK LTD | 10/09/2020 |
01722 708 | Belgacom International Carrier Services SA | 21/10/2020 |
01722 71 | BT | 15/07/1994 |
01722 720 | Lumen Technologies UK Limited | 09/09/1999 |
01722 723 | Lumen Technologies UK Limited | 09/09/1999 |
01722 729 | Lumen Technologies UK Limited | 09/09/1999 |
01722 73 | GCI Network Solutions Ltd | 26/04/2017 |
01722 74 | BT | 15/07/1994 |
01722 76 | Syntec Limited | 12/12/2005 |
01722 77 | AQL Wholesale Ltd | 01/11/2004 |
01722 78 | BT | 15/07/1994 |
01722 79 | BT | 15/07/1994 |
01722 82 | BT | 15/07/1994 |