01303 10 | BT | 10/10/2001 |
01303 20 | Vodafone Ltd (C&W) | 19/08/2013 |
01303 21 | BT | 23/12/1997 |
01303 22 | BT | 15/07/1994 |
01303 23 | BT | 15/07/1994 |
01303 24 | BT | 15/07/1994 |
01303 25 | BT | 15/07/1994 |
01303 26 | BT | 15/07/1994 |
01303 27 | BT | 15/07/1994 |
01303 28 | BT | 15/07/1994 |
01303 29 | BT | 15/07/1994 |
01303 300 | Served Up Limited | 01/03/2013 |
01303 301 | Served Up Limited | 01/03/2013 |
01303 310 | Digitech Solutions Global Limited | 22/06/2012 |
01303 311 | TalkTalk Communications Limited | 17/12/2012 |
01303 312 | Internexus Networks Limited | 21/11/2011 |
01303 314 | Barritec Limited | 20/09/2011 |
01303 315 | Minotaur Telecom Limited | 07/02/2013 |
01303 316 | Simwood eSMS Limited | 09/02/2012 |
01303 317 | API Telecom Limited | 26/03/2012 |
01303 319 | Bicom Systems EURL | 01/03/2012 |
01303 32 | FleXtel Limited | 20/10/2005 |
01303 33 | IV Response Limited | 05/07/2005 |
01303 34 | Invade International Ltd | 20/01/2016 |
01303 360 | Six Degrees Technology Group Limited | 14/01/2020 |
01303 364 | Six Degrees Technology Group Limited | 14/01/2020 |
01303 37 | TTNC Limited | 25/11/2013 |
01303 38 | Alphatalk Limited | 31/01/2014 |
01303 390 | Invosys Limited | 26/01/2012 |
01303 391 | Nexbridge Communications Limited | 06/03/2012 |
01303 392 | Hello Telecom (UK) Limited | 08/06/2011 |
01303 393 | IP Wholesale Limited | 01/06/2017 |
01303 394 | Orbtalk Limited | 12/09/2011 |
01303 395 | ICC Networks Ltd | 13/04/2012 |
01303 396 | IOVOX Limited | 02/07/2012 |
01303 397 | Orange Business Holdings UK Limited | 13/07/2012 |
01303 398 | Ziron Limited | 30/07/2012 |
01303 405 | GTT-EMEA LTD | 14/10/2021 |
01303 406 | GTT-EMEA LTD | 14/10/2021 |
01303 407 | GTT-EMEA LTD | 14/10/2021 |
01303 413 | Digital Space Group Limited | 12/04/2016 |
01303 44 | Lumen Technologies UK Limited | 11/08/2006 |
01303 46 | TelNG Limited | 26/02/2007 |
01303 470 | Sky UK Limited | 13/01/2014 |
01303 471 | TalkTalk Communications Limited | 10/02/2015 |
01303 472 | Colt Technology Services | 21/04/2015 |
01303 473 | Redwood Technologies Ltd | 15/11/2018 |
01303 474 | iHub 2 Limited | 18/05/2016 |
01303 475 | YayYay Limited | 23/04/2015 |
01303 476 | Invoco Ltd | 28/01/2015 |
01303 477 | Spitfire Network Services Limited | 21/07/2011 |
01303 478 | Liquid 11 Limited | 13/06/2013 |
01303 479 | Sky UK Limited | 03/12/2013 |
01303 487 | TalkTalk Communications Limited | 31/08/2011 |
01303 488 | TalkTalk Communications Limited | 31/08/2011 |
01303 489 | TalkTalk Communications Limited | 31/08/2011 |
01303 490 | Resilient PLC | 12/09/2011 |
01303 499 | Resilient PLC | 12/09/2011 |
01303 50 | Redcentric Solutions Limited | 05/06/2015 |
01303 51 | Localphone Limited | 23/04/2007 |
01303 53 | Voiceflex Limited | 24/09/2007 |
01303 54 | VoIP-Un Limited | 26/10/2007 |
01303 56 | Digital Space Group Limited | 30/11/2007 |
01303 57 | (AQ) LIMITED | 10/09/2012 |
01303 58 | Barritel Limited | 12/06/2007 |
01303 59 | Nationwide Telephone Assistance Ltd | 02/10/2007 |
01303 600 | Net-Work Internet Ltd | 10/08/2011 |
01303 610 | Voxbone SA | 05/12/2011 |
01303 620 | Nodemax Limited | 14/07/2008 |
01303 621 | TalkTalk Communications Limited | 15/02/2013 |
01303 622 | Commi Holdings Limited | 21/11/2016 |
01303 624 | Solutios Limited | 18/09/2008 |
01303 625 | Mars Communications Limited | 12/02/2009 |
01303 626 | Telecom2 Limited | 10/09/2009 |
01303 627 | Sky UK Limited | 01/07/2013 |
01303 628 | IPV6 Limited | 29/01/2009 |
01303 629 | Andrews & Arnold (Numbers) Ltd | 03/03/2009 |
01303 63 | TGL Services (UK) Ltd | 02/02/2015 |
01303 640 | CFL Communications Ltd | 08/07/2009 |
01303 641 | Orbital Net Limited | 20/07/2009 |
01303 642 | Vectone Mobile Limited | 29/06/2009 |
01303 644 | Telecoms World PLC | 12/03/2009 |
01303 645 | TeleWare Group PLC | 20/08/2009 |
01303 647 | Inet Telecoms Ltd (Voipfone) | 05/08/2009 |
01303 648 | Nexus Telecommunications Limited | 25/09/2009 |
01303 650 | Verizon UK Limited | 06/11/2009 |
01303 651 | Verizon UK Limited | 06/11/2009 |
01303 653 | I-NET COMMUNICATIONS GROUP PLC | 12/01/2010 |
01303 654 | Atomstream Limited | 26/02/2010 |
01303 656 | Buzz Networks Limited | 01/03/2010 |
01303 657 | Digitech Solutions Global Limited | 28/04/2010 |
01303 658 | Calltracks Limited | 19/09/2013 |
01303 659 | Core Telecom Limited | 05/08/2010 |
01303 660 | Suretec Systems Ltd | 04/05/2010 |
01303 661 | Telappliant Ltd | 01/06/2010 |
01303 662 | Numbergroup Utilities Ltd | 02/11/2010 |
01303 663 | Windsor Telecom Ltd | 20/07/2010 |
01303 665 | Phone Co-Op Numbering Limited | 16/12/2010 |
01303 666 | Telephone Box Limited | 22/11/2010 |
01303 669 | VoiceHost Limited | 27/08/2010 |
01303 670 | Sky UK Limited | 01/07/2013 |
01303 680 | Sky UK Limited | 01/07/2013 |
01303 681 | Content Guru Limited | 12/10/2012 |
01303 682 | Intrado Cloud Solutions Limited | 19/02/2013 |
01303 683 | Numbers Plus Ltd | 13/02/2013 |
01303 684 | Kalnet4U Ltd | 10/05/2013 |
01303 685 | XoverX Ltd | 30/04/2013 |
01303 690 | I.T Communications Limited | 25/04/2017 |
01303 691 | Entanet International Ltd | 05/12/2017 |
01303 692 | 24 SEVEN CLOUD COMMUNICATIONS LTD | 17/01/2020 |
01303 693 | Zapappi Ltd | 05/01/2018 |
01303 694 | Club Communications Ltd | 03/07/2018 |
01303 695 | Dial 9 Communications Limited | 10/12/2019 |
01303 696 | IP Voice Networks Ltd | 20/09/2017 |
01303 697 | Fuse 2 Communications Ltd | 03/07/2017 |
01303 698 | Belgacom International Carrier Services SA | 29/11/2019 |
01303 699 | Number Services Ltd. | 22/11/2018 |
01303 70 | Citrus Telecommunications Ltd | 11/04/2006 |
01303 71 | BT | 15/07/1994 |
01303 72 | AQL Wholesale Ltd | 01/11/2004 |
01303 730 | Inclarity Communications Limited | 31/05/2011 |
01303 731 | Inclarity Communications Limited | 31/05/2011 |
01303 732 | Inclarity Communications Limited | 31/05/2011 |
01303 735 | Inclarity Communications Limited | 31/05/2011 |
01303 750 | Vodafone Ltd (C&W) | 19/08/2013 |
01303 754 | Vodafone Ltd (C&W) | 19/08/2013 |
01303 755 | Vodafone Ltd (C&W) | 19/08/2013 |
01303 756 | Vodafone Ltd (C&W) | 19/08/2013 |
01303 757 | Vodafone Ltd (C&W) | 19/08/2013 |
01303 76 | Gamma Telecom Holdings Ltd | 15/03/2005 |
01303 77 | Virgin Media Limited | 10/09/1996 |
01303 78 | Syntec Limited | 23/03/2005 |
01303 790 | Linear Telecoms Limited | 07/10/2010 |
01303 801 | Affiniti Integrated Solutions Limited | 19/12/2011 |
01303 802 | Affiniti Integrated Solutions Limited | 19/12/2011 |
01303 808 | Affiniti Integrated Solutions Limited | 19/12/2011 |
01303 81 | BT | 15/07/1994 |
01303 820 | Vodafone Ltd (C&W) | 19/08/2013 |
01303 821 | Vodafone Ltd (C&W) | 19/08/2013 |
01303 822 | Vodafone Ltd (C&W) | 19/08/2013 |
01303 823 | Vodafone Ltd (C&W) | 19/08/2013 |
01303 824 | Vodafone Ltd (C&W) | 19/08/2013 |
01303 825 | Vodafone Ltd (C&W) | 19/08/2013 |
01303 826 | Vodafone Ltd (C&W) | 19/08/2013 |
01303 83 | GCI Network Solutions Ltd | 20/04/2017 |
01303 84 | BT | 15/07/1994 |
01303 85 | BT | 15/07/1994 |
01303 86 | BT | 15/07/1994 |
01303 87 | BT | 15/07/1994 |
01303 880 | Magrathea Telecommunications Limited | 18/11/2011 |
01303 881 | Magrathea Telecommunications Limited | 18/11/2011 |
01303 883 | Magrathea Telecommunications Limited | 18/11/2011 |
01303 884 | Magrathea Telecommunications Limited | 18/11/2011 |
01303 887 | Magrathea Telecommunications Limited | 18/11/2011 |
01303 888 | Magrathea Telecommunications Limited | 18/11/2011 |
01303 889 | Magrathea Telecommunications Limited | 18/11/2011 |
01303 89 | BT | 15/07/1994 |
01303 900 | VOXYONDER NETWORK SERVICES UK LTD | 10/09/2020 |
01303 901 | BT | 01/05/2020 |
01303 902 | Sky UK Limited | 22/12/2020 |
01303 903 | Lanonyx Telecom Limited | 10/08/2021 |
01303 909 | SiPalto Ltd | 11/06/2020 |
01303 910 | ICUK Computing Services Limited | 05/06/2020 |
01303 911 | Mi Telecom Limited | 03/07/2020 |
01303 980 | Sky UK Limited | 07/09/2015 |
01303 982 | Sky UK Limited | 06/12/2016 |
01303 983 | Mintaka Limited | 26/09/2016 |
01303 984 | Adepteo Limited | 13/12/2016 |
01303 986 | DIDWW Ireland Limited | 27/01/2020 |
01303 987 | M247 Ltd | 25/09/2015 |