01244 112 | BT | 11/08/2006 |
01244 114 | BT | 11/08/2006 |
01244 195 | BT | 07/06/2012 |
01244 196 | BT | 07/06/2012 |
01244 200 | Vodafone Ltd (Thus) | 17/01/2012 |
01244 201 | Vodafone Ltd (Thus) | 17/01/2012 |
01244 202 | Vodafone Ltd (Thus) | 17/01/2012 |
01244 203 | Vodafone Ltd (Thus) | 17/01/2012 |
01244 204 | Sky UK Limited | 08/06/2017 |
01244 205 | Invosys Limited | 23/08/2017 |
01244 206 | Vodafone Ltd (Thus) | 17/01/2012 |
01244 207 | Gamma Telecom Holdings Ltd | 18/08/2017 |
01244 208 | Virgin Media Limited | 20/12/2017 |
01244 209 | Vodafone Ltd (Thus) | 17/01/2012 |
01244 21 | Vodafone Ltd (C&W) | 03/10/2013 |
01244 220 | Vodafone Ltd (C&W) | 04/07/2018 |
01244 221 | Vodafone Ltd (C&W) | 04/07/2018 |
01244 222 | Vodafone Ltd (C&W) | 04/07/2018 |
01244 223 | ICUK Computing Services Limited | 20/09/2019 |
01244 224 | SiPalto Ltd | 03/12/2019 |
01244 226 | Belgacom International Carrier Services SA | 14/10/2019 |
01244 227 | Dial 9 Communications Limited | 09/12/2019 |
01244 228 | Vodafone Ltd (C&W) | 10/08/2015 |
01244 229 | Vodafone Ltd (C&W) | 28/03/2017 |
01244 230 | Lumen Technologies UK Limited | 25/07/2011 |
01244 231 | TalkTalk Communications Limited | 09/01/2020 |
01244 232 | Lumen Technologies UK Limited | 25/07/2011 |
01244 233 | Lumen Technologies UK Limited | 25/07/2011 |
01244 234 | Lumen Technologies UK Limited | 25/07/2011 |
01244 235 | Lumen Technologies UK Limited | 25/07/2011 |
01244 236 | Lumen Technologies UK Limited | 25/07/2011 |
01244 237 | 24 SEVEN CLOUD COMMUNICATIONS LTD | 17/01/2020 |
01244 238 | Lumen Technologies UK Limited | 25/07/2011 |
01244 239 | Lumen Technologies UK Limited | 25/07/2011 |
01244 24 | Vodafone Ltd (Energis) | 26/05/2006 |
01244 250 | Daisy Communications Ltd | 14/12/2011 |
01244 251 | Daisy Communications Ltd | 14/12/2011 |
01244 252 | Daisy Communications Ltd | 14/12/2011 |
01244 253 | Daisy Communications Ltd | 14/12/2011 |
01244 254 | Daisy Communications Ltd | 14/12/2011 |
01244 256 | BT | 26/11/2019 |
01244 257 | Gamma Telecom Holdings Ltd | 01/08/2019 |
01244 258 | Daisy Communications Ltd | 14/12/2011 |
01244 259 | Gamma Telecom Holdings Ltd | 06/03/2019 |
01244 260 | Inclarity Communications Limited | 06/12/2010 |
01244 261 | Inclarity Communications Limited | 06/12/2010 |
01244 262 | Inclarity Communications Limited | 06/12/2010 |
01244 263 | Gamma Telecom Holdings Ltd | 03/03/2020 |
01244 264 | Colt Technology Services | 25/02/2020 |
01244 265 | Inclarity Communications Limited | 06/12/2010 |
01244 266 | Vispa Limited | 13/05/2020 |
01244 267 | BT | 09/03/2020 |
01244 268 | Gamma Telecom Holdings Ltd | 15/07/2020 |
01244 269 | Mi Telecom Limited | 03/07/2020 |
01244 27 | Redcentric Solutions Limited | 05/06/2015 |
01244 28 | BT | 15/07/1994 |
01244 290 | Linear Telecoms Limited | 05/10/2010 |
01244 291 | Sky UK Limited | 24/06/2013 |
01244 292 | TalkTalk Communications Limited | 21/05/2012 |
01244 293 | Ziron Limited | 27/07/2012 |
01244 294 | Sky UK Limited | 24/06/2013 |
01244 295 | ICC Networks Ltd | 12/04/2012 |
01244 296 | Content Guru Limited | 12/10/2012 |
01244 297 | TalkTalk Communications Limited | 17/12/2012 |
01244 298 | AVC One Limited | 12/02/2014 |
01244 299 | Numbergroup Utilities Ltd | 29/04/2019 |
01244 300 | BT | 27/07/2009 |
01244 301 | BT | 27/07/2009 |
01244 302 | BT | 27/07/2009 |
01244 303 | BT | 27/07/2009 |
01244 304 | BT | 27/07/2009 |
01244 305 | BT | 27/07/2009 |
01244 306 | GTT-EMEA LTD | 13/10/2021 |
01244 307 | I-NET COMMUNICATIONS GROUP PLC | 12/01/2010 |
01244 308 | GCI Network Solutions Ltd | 19/04/2017 |
01244 309 | WIGHTFIBRE LIMITED | 18/01/2010 |
01244 31 | BT | 15/07/1994 |
01244 32 | BT | 15/07/1994 |
01244 330 | BT | 07/06/2012 |
01244 332 | BT | 07/06/2012 |
01244 333 | BT | 07/06/2012 |
01244 335 | BT | 07/06/2012 |
01244 336 | BT | 07/06/2012 |
01244 34 | BT | 15/07/1994 |
01244 35 | BT | 15/07/1994 |
01244 36 | BT | 15/07/1994 |
01244 37 | BT | 15/07/1994 |
01244 380 | BT | 07/06/2012 |
01244 381 | BT | 07/06/2012 |
01244 382 | BT | 07/06/2012 |
01244 383 | BT | 07/06/2012 |
01244 384 | BT | 07/06/2012 |
01244 385 | BT | 07/06/2012 |
01244 389 | BT | 07/06/2012 |
01244 39 | BT | 15/07/1994 |
01244 40 | BT | 15/07/1994 |
01244 41 | Citrus Telecommunications Ltd | 11/04/2006 |
01244 420 | Telecom2 Limited | 11/09/2009 |
01244 421 | Gamma Telecom Holdings Ltd | 07/07/2008 |
01244 422 | Net-Work Internet Ltd | 11/03/2008 |
01244 424 | Nodemax Limited | 15/07/2008 |
01244 425 | Commi Holdings Limited | 21/11/2016 |
01244 426 | Solutios Limited | 15/08/2008 |
01244 428 | Sky UK Limited | 24/06/2013 |
01244 429 | IPV6 Limited | 27/01/2009 |
01244 432 | Affiniti Integrated Solutions Limited | 16/12/2011 |
01244 433 | Affiniti Integrated Solutions Limited | 16/12/2011 |
01244 434 | Affiniti Integrated Solutions Limited | 16/12/2011 |
01244 435 | Affiniti Integrated Solutions Limited | 16/12/2011 |
01244 439 | Affiniti Integrated Solutions Limited | 16/12/2011 |
01244 440 | Telecoms World PLC | 09/03/2009 |
01244 441 | Nexus Telecommunications Limited | 31/03/2009 |
01244 442 | Chess Limited | 06/04/2018 |
01244 443 | Dynamic Mobile Billing Limited | 09/04/2009 |
01244 444 | New Call Telecom Ltd | 18/02/2015 |
01244 445 | Gamma Telecom Holdings Ltd | 11/03/2021 |
01244 446 | Vectone Mobile Limited | 06/07/2009 |
01244 447 | TeleWare Group PLC | 21/02/2013 |
01244 449 | CFL Communications Ltd | 24/09/2009 |
01244 450 | Magrathea Telecommunications Limited | 16/11/2011 |
01244 451 | Magrathea Telecommunications Limited | 16/11/2011 |
01244 455 | Magrathea Telecommunications Limited | 16/11/2011 |
01244 456 | Magrathea Telecommunications Limited | 16/11/2011 |
01244 457 | Magrathea Telecommunications Limited | 16/11/2011 |
01244 458 | Magrathea Telecommunications Limited | 16/11/2011 |
01244 459 | Magrathea Telecommunications Limited | 16/11/2011 |
01244 460 | Vodafone Ltd (C&W) | 03/10/2013 |
01244 461 | Vodafone Ltd (C&W) | 03/10/2013 |
01244 462 | Vodafone Ltd (C&W) | 03/10/2013 |
01244 463 | Vodafone Ltd (C&W) | 03/10/2013 |
01244 464 | Vodafone Ltd (C&W) | 03/10/2013 |
01244 465 | Vodafone Ltd (C&W) | 03/10/2013 |
01244 466 | Vodafone Ltd (C&W) | 03/10/2013 |
01244 47 | AQL Wholesale Ltd | 01/11/2004 |
01244 490 | GCI Network Solutions Ltd | 20/04/2017 |
01244 500 | BT | 27/07/2009 |
01244 501 | BT | 27/07/2009 |
01244 503 | BT | 27/07/2009 |
01244 504 | BT | 27/07/2009 |
01244 505 | BT | 27/07/2009 |
01244 506 | 8x8 UK Limited | 19/02/2010 |
01244 507 | Suretec Systems Ltd | 29/04/2010 |
01244 508 | Calltracks Limited | 19/09/2013 |
01244 509 | BT | 27/07/2009 |
01244 510 | Vodafone Ltd (C&W) | 04/07/2018 |
01244 511 | Vodafone Ltd (C&W) | 04/07/2018 |
01244 512 | Vodafone Ltd (C&W) | 04/07/2018 |
01244 513 | Vodafone Ltd (C&W) | 04/07/2018 |
01244 515 | Vodafone Ltd (C&W) | 04/07/2018 |
01244 52 | BT | 15/07/1994 |
01244 53 | BT | 15/07/1994 |
01244 540 | BT | 07/06/2012 |
01244 541 | BT | 07/06/2012 |
01244 543 | BT | 07/06/2012 |
01244 544 | BT | 07/06/2012 |
01244 545 | BT | 07/06/2012 |
01244 546 | BT | 07/06/2012 |
01244 547 | BT | 07/06/2012 |
01244 548 | BT | 07/06/2012 |
01244 549 | BT | 07/06/2012 |
01244 550 | BT | 27/07/2009 |
01244 551 | BT | 27/07/2009 |
01244 552 | BT | 27/07/2009 |
01244 553 | Core Telecom Limited | 05/08/2010 |
01244 554 | Windsor Telecom Ltd | 19/07/2010 |
01244 555 | VoiceHost Limited | 26/08/2010 |
01244 556 | Sky UK Limited | 24/06/2013 |
01244 557 | Numbergroup Utilities Ltd | 04/11/2010 |
01244 558 | Atomstream Limited | 15/11/2010 |
01244 559 | BT | 27/07/2009 |
01244 56 | Gamma Telecom Holdings Ltd | 20/04/2004 |
01244 570 | BT | 07/06/2012 |
01244 571 | BT | 07/06/2012 |
01244 572 | BT | 07/06/2012 |
01244 573 | BT | 07/06/2012 |
01244 574 | BT | 07/06/2012 |
01244 575 | BT | 07/06/2012 |
01244 576 | BT | 07/06/2012 |
01244 577 | BT | 07/06/2012 |
01244 579 | BT | 07/06/2012 |
01244 58 | BT | 15/07/1994 |
01244 59 | Syntec Limited | 22/03/2005 |
01244 601 | BT | 07/06/2012 |
01244 602 | BT | 07/06/2012 |
01244 603 | BT | 07/06/2012 |
01244 605 | BT | 07/06/2012 |
01244 606 | BT | 07/06/2012 |
01244 607 | BT | 07/06/2012 |
01244 608 | BT | 07/06/2012 |
01244 610 | BT | 27/07/2009 |
01244 611 | BT | 27/07/2009 |
01244 612 | BT | 27/07/2009 |
01244 613 | BT | 27/07/2009 |
01244 614 | BT | 27/07/2009 |
01244 615 | BT | 27/07/2009 |
01244 616 | BT | 27/07/2009 |
01244 617 | Gamma Telecom Holdings Ltd | 04/07/2016 |
01244 618 | Sky UK Limited | 10/06/2016 |
01244 619 | BT | 27/07/2009 |
01244 620 | BT | 27/07/2009 |
01244 621 | Gamma Telecom Holdings Ltd | 22/07/2016 |
01244 622 | BT | 27/07/2009 |
01244 623 | BT | 27/07/2009 |
01244 624 | BT | 27/07/2009 |
01244 625 | BT | 27/07/2009 |
01244 626 | Redwood Technologies Ltd | 15/11/2018 |
01244 627 | Media Hawk Ltd | 28/09/2016 |
01244 629 | BT | 27/07/2009 |
01244 630 | TalkTalk Communications Limited | 31/08/2011 |
01244 631 | IP Voice Networks Ltd | 20/09/2017 |
01244 632 | Antheus Telecom Limited | 07/02/2018 |
01244 633 | I.T Communications Limited | 12/06/2017 |
01244 634 | Fuse 2 Communications Ltd | 03/07/2017 |
01244 635 | Zapappi Ltd | 05/01/2018 |
01244 636 | Number Services Ltd. | 22/11/2018 |
01244 637 | TalkTalk Communications Limited | 31/08/2011 |
01244 638 | TalkTalk Communications Limited | 31/08/2011 |
01244 639 | TalkTalk Communications Limited | 31/08/2011 |
01244 640 | (AQ) LIMITED | 17/10/2011 |
01244 641 | TalkTalk Communications Limited | 12/02/2013 |
01244 642 | Barritel Limited | 17/08/2007 |
01244 643 | Digital Space Group Limited | 15/03/2016 |
01244 644 | VoIP-Un Limited | 26/10/2007 |
01244 645 | TelXL Ltd | 12/02/2008 |
01244 646 | Voxbone SA | 10/12/2007 |
01244 647 | Entanet International Ltd | 14/12/2007 |
01244 648 | Digital Space Group Limited | 29/11/2007 |
01244 649 | Nationwide Telephone Assistance Ltd | 01/10/2007 |
01244 65 | BT | 15/07/1994 |
01244 660 | BT | 27/07/2009 |
01244 661 | BT | 27/07/2009 |
01244 662 | Gamma Telecom Holdings Ltd | 08/09/2020 |
01244 663 | BT | 27/07/2009 |
01244 664 | Sky UK Limited | 22/12/2020 |
01244 665 | BT | 27/07/2009 |
01244 666 | VOXYONDER NETWORK SERVICES UK LTD | 16/09/2020 |
01244 667 | Gamma Telecom Holdings Ltd | 17/12/2020 |
01244 668 | Colt Technology Services | 22/12/2020 |
01244 669 | BT | 27/07/2009 |
01244 67 | BT | 15/07/1994 |
01244 68 | BT | 15/07/1994 |
01244 69 | BT | 15/07/1994 |
01244 70 | Verizon UK Limited | 03/08/2005 |
01244 71 | FleXtel Limited | 19/10/2005 |
01244 720 | Minotaur Telecom Limited | 01/02/2013 |
01244 721 | Internexus Networks Limited | 18/11/2011 |
01244 722 | Simwood eSMS Limited | 01/02/2012 |
01244 723 | GCI Network Solutions Ltd | 30/03/2017 |
01244 724 | Bicom Systems EURL | 02/03/2012 |
01244 725 | IOVOX Limited | 03/04/2012 |
01244 726 | BT | 28/01/2021 |
01244 730 | Gamma Telecom Holdings Ltd | 14/02/2018 |
01244 731 | Telappliant Ltd | 05/04/2018 |
01244 732 | Gamma Telecom Holdings Ltd | 19/06/2018 |
01244 733 | TalkTalk Communications Limited | 13/04/2018 |
01244 734 | Colt Technology Services | 04/06/2018 |
01244 735 | Gamma Telecom Holdings Ltd | 17/09/2018 |
01244 736 | Affiniti Integrated Solutions Limited | 23/07/2018 |
01244 737 | Club Communications Ltd | 18/05/2018 |
01244 738 | BT | 02/10/2018 |
01244 739 | DIDWW Ireland Limited | 15/10/2018 |
01244 740 | YayYay Limited | 23/04/2015 |
01244 741 | Virgin Media Limited | 20/01/2021 |
01244 742 | M247 Ltd | 18/05/2015 |
01244 743 | Sky UK Limited | 19/05/2015 |
01244 744 | Lanonyx Telecom Limited | 03/03/2015 |
01244 745 | Internet of Things Limited | 13/08/2018 |
01244 746 | Gamma Telecom Holdings Ltd | 23/06/2015 |
01244 747 | Colt Technology Services | 17/04/2015 |
01244 748 | TalkTalk Communications Limited | 04/09/2015 |
01244 749 | Sky UK Limited | 07/09/2015 |
01244 75 | Vodafone Ltd (C&W) | 03/10/2013 |
01244 76 | Invade International Ltd | 20/01/2016 |
01244 77 | IV Response Limited | 04/07/2005 |
01244 780 | Six Degrees Technology Group Limited | 14/01/2020 |
01244 784 | Six Degrees Technology Group Limited | 14/01/2020 |
01244 790 | Digitech Solutions Global Limited | 22/06/2012 |
01244 791 | Sky UK Limited | 24/06/2013 |
01244 792 | Orange Business Holdings UK Limited | 16/01/2013 |
01244 793 | Media Hawk Ltd | 10/04/2013 |
01244 794 | Kalnet4U Ltd | 08/05/2013 |
01244 795 | Sky UK Limited | 20/06/2013 |
01244 796 | Sky UK Limited | 21/08/2013 |
01244 797 | Numbers Plus Ltd | 13/02/2013 |
01244 798 | XoverX Ltd | 01/05/2013 |
01244 799 | Intrado Cloud Solutions Limited | 15/01/2013 |
01244 800 | Served Up Limited | 01/03/2013 |
01244 801 | Served Up Limited | 01/03/2013 |
01244 81 | BT | 15/07/1994 |
01244 820 | BT | 07/06/2012 |
01244 821 | BT | 07/06/2012 |
01244 822 | BT | 07/06/2012 |
01244 823 | BT | 07/06/2012 |
01244 825 | BT | 07/06/2012 |
01244 826 | BT | 07/06/2012 |
01244 830 | BT | 27/07/2009 |
01244 831 | BT | 27/07/2009 |
01244 832 | BT | 27/07/2009 |
01244 833 | BT | 27/07/2009 |
01244 834 | BT | 27/07/2009 |
01244 836 | BT | 27/07/2009 |
01244 837 | BT | 27/07/2009 |
01244 838 | BT | 27/07/2009 |
01244 841 | Alnitak GmbH | 06/04/2016 |
01244 842 | BT | 27/07/2009 |
01244 843 | BT | 27/07/2009 |
01244 844 | BT | 27/07/2009 |
01244 845 | BT | 27/07/2009 |
01244 846 | BT | 27/07/2009 |
01244 847 | BT | 27/07/2009 |
01244 85 | BT | 15/07/1994 |
01244 86 | Vodafone Ltd (C&W) | 03/10/2013 |
01244 87 | Vodafone Ltd (C&W) | 03/10/2013 |
01244 880 | BT | 27/07/2009 |
01244 881 | BT | 27/07/2009 |
01244 882 | BT | 27/07/2009 |
01244 883 | Media Hawk Ltd | 25/11/2015 |
01244 884 | Nexbridge Communications Limited | 17/03/2016 |
01244 885 | NFON UK Ltd | 29/04/2016 |
01244 886 | Gamma Telecom Holdings Ltd | 05/11/2015 |
01244 887 | Gamma Telecom Holdings Ltd | 01/10/2015 |
01244 888 | BT | 27/07/2009 |
01244 889 | BT | 27/07/2009 |
01244 89 | Vodafone Ltd (C&W) | 03/10/2013 |
01244 900 | Sky UK Limited | 24/06/2013 |
01244 901 | iHub 2 Limited | 18/05/2016 |
01244 902 | TelNG Limited | 26/02/2007 |
01244 904 | Digital Mail Limited | 02/02/2007 |
01244 905 | Localphone Limited | 24/04/2007 |
01244 906 | Voiceflex Limited | 27/07/2007 |
01244 907 | Spitfire Network Services Limited | 28/11/2006 |
01244 909 | BT | 29/03/2019 |
01244 910 | Mars Communications Limited | 04/02/2009 |
01244 911 | Inet Telecoms Ltd (Voipfone) | 27/02/2009 |
01244 912 | Andrews & Arnold (Numbers) Ltd | 26/02/2009 |
01244 913 | Sky UK Limited | 24/06/2013 |
01244 914 | Hello Telecom (UK) Limited | 14/04/2011 |
01244 915 | Orbtalk Limited | 23/08/2011 |
01244 917 | Invoco Ltd | 21/09/2011 |
01244 93 | TGL Services (UK) Ltd | 02/02/2015 |
01244 940 | WAVECREST NETWORKS LIMITED | 16/12/2019 |
01244 941 | WAVECREST NETWORKS LIMITED | 16/12/2019 |
01244 950 | TalkTalk Communications Limited | 29/11/2013 |
01244 951 | TalkTalk Communications Limited | 01/08/2014 |
01244 952 | BT | 29/10/2014 |
01244 953 | Vonage Limited | 26/01/2015 |
01244 955 | Redwood Technologies Ltd | 15/11/2018 |
01244 956 | BT | 27/01/2015 |
01244 957 | BT | 09/10/2013 |
01244 958 | Affiniti Integrated Solutions Limited | 09/02/2015 |
01244 959 | Sky UK Limited | 21/08/2013 |
01244 96 | TTNC Limited | 11/11/2013 |
01244 972 | Vodafone Ltd (C&W) | 04/07/2018 |
01244 973 | Vodafone Ltd (C&W) | 04/07/2018 |
01244 975 | Vodafone Ltd (C&W) | 04/07/2018 |
01244 976 | Vodafone Ltd (C&W) | 04/07/2018 |
01244 977 | Vodafone Ltd (C&W) | 04/07/2018 |
01244 979 | Vodafone Ltd (C&W) | 04/07/2018 |
01244 980 | BT | 09/02/2017 |
01244 981 | Vodafone Ltd (C&W) | 04/07/2018 |
01244 982 | Virgin Media Limited | 03/03/2017 |
01244 985 | Hyperoptic Ltd | 04/04/2017 |
01244 986 | Colt Technology Services | 10/04/2017 |
01244 987 | Gamma Telecom Holdings Ltd | 20/12/2016 |
01244 988 | IOVOX Limited | 28/03/2017 |
01244 989 | Adepteo Limited | 16/01/2017 |