01283 00 | Number Services Ltd. | 22/11/2018 |
01283 20 | BT | 18/11/1999 |
01283 21 | BT | 15/07/1994 |
01283 22 | BT | 15/07/1994 |
01283 23 | BT | 12/04/1995 |
01283 24 | Gamma Telecom Holdings Ltd | 20/04/2004 |
01283 25 | Redcentric Solutions Limited | 05/06/2015 |
01283 26 | AQL Wholesale Ltd | 01/11/2004 |
01283 279 | Vodafone Ltd (Thus) | 23/01/2012 |
01283 289 | Vodafone Ltd (C&W) | 10/08/2015 |
01283 290 | Linear Telecoms Limited | 06/10/2010 |
01283 291 | Orbtalk Limited | 13/09/2011 |
01283 292 | Internexus Networks Limited | 21/11/2011 |
01283 293 | Invoco Ltd | 20/09/2011 |
01283 295 | TalkTalk Communications Limited | 23/11/2011 |
01283 296 | Simwood eSMS Limited | 09/02/2012 |
01283 297 | Bicom Systems EURL | 01/03/2012 |
01283 299 | Sky UK Limited | 03/12/2013 |
01283 305 | Daisy Communications Ltd | 13/12/2011 |
01283 306 | Daisy Communications Ltd | 13/12/2011 |
01283 307 | Daisy Communications Ltd | 13/12/2011 |
01283 308 | Daisy Communications Ltd | 13/12/2011 |
01283 309 | Daisy Communications Ltd | 13/12/2011 |
01283 310 | Sky UK Limited | 03/12/2013 |
01283 311 | Windsor Telecom Ltd | 20/07/2010 |
01283 312 | Core Telecom Limited | 05/08/2010 |
01283 313 | Telephone Box Limited | 24/11/2010 |
01283 315 | Numbergroup Utilities Ltd | 03/12/2010 |
01283 316 | Phone Co-Op Numbering Limited | 16/12/2010 |
01283 318 | Invosys Limited | 09/07/2012 |
01283 319 | IP Wholesale Limited | 01/06/2017 |
01283 320 | Hello Telecom (UK) Limited | 01/06/2011 |
01283 322 | 24 SEVEN CLOUD COMMUNICATIONS LTD | 30/09/2019 |
01283 323 | Minotaur Telecom Limited | 01/02/2013 |
01283 324 | Nexbridge Communications Limited | 06/03/2012 |
01283 325 | API Telecom Limited | 26/03/2012 |
01283 326 | ICC Networks Ltd | 13/04/2012 |
01283 327 | Sky UK Limited | 03/12/2013 |
01283 328 | IOVOX Limited | 02/07/2012 |
01283 329 | TalkTalk Communications Limited | 27/07/2012 |
01283 330 | Ziron Limited | 30/07/2012 |
01283 331 | Sky UK Limited | 03/12/2013 |
01283 332 | Content Guru Limited | 12/10/2012 |
01283 333 | Numbergroup Utilities Ltd | 29/04/2019 |
01283 334 | Orange Business Holdings UK Limited | 16/10/2012 |
01283 335 | Sky UK Limited | 03/12/2013 |
01283 336 | Intrado Cloud Solutions Limited | 15/01/2013 |
01283 337 | TalkTalk Communications Limited | 19/02/2013 |
01283 338 | Numbers Plus Ltd | 13/02/2013 |
01283 339 | Media Hawk Ltd | 10/04/2013 |
01283 340 | Storacall Technology Limited | 11/04/2013 |
01283 341 | Sky UK Limited | 03/12/2013 |
01283 342 | Kalnet4U Ltd | 10/05/2013 |
01283 343 | Sky UK Limited | 15/08/2013 |
01283 344 | iHub 2 Limited | 18/05/2016 |
01283 345 | Redwood Technologies Ltd | 15/11/2018 |
01283 346 | TalkTalk Communications Limited | 03/06/2014 |
01283 347 | BT | 09/10/2013 |
01283 348 | Sky UK Limited | 15/08/2013 |
01283 349 | XoverX Ltd | 30/04/2013 |
01283 350 | Sky UK Limited | 23/10/2014 |
01283 351 | Vonage Limited | 27/01/2015 |
01283 352 | Updata Infrastructure (UK) Limited | 09/03/2015 |
01283 353 | TalkTalk Communications Limited | 26/03/2015 |
01283 354 | Sky UK Limited | 19/05/2015 |
01283 355 | Lanonyx Telecom Limited | 03/03/2015 |
01283 356 | M247 Ltd | 29/05/2015 |
01283 357 | Colt Technology Services | 21/04/2015 |
01283 358 | YayYay Limited | 23/04/2015 |
01283 361 | Calltracks Limited | 29/07/2016 |
01283 362 | Sky UK Limited | 21/04/2016 |
01283 363 | Sky UK Limited | 06/12/2016 |
01283 364 | IOVOX Limited | 23/12/2016 |
01283 366 | Adepteo Limited | 17/01/2017 |
01283 369 | I.T Communications Limited | 25/04/2017 |
01283 370 | TalkTalk Communications Limited | 02/08/2017 |
01283 371 | Zapappi Ltd | 26/10/2017 |
01283 372 | Gamma Telecom Holdings Ltd | 30/11/2017 |
01283 373 | IP Voice Networks Ltd | 20/09/2017 |
01283 374 | Club Communications Ltd | 03/07/2018 |
01283 375 | Sky UK Limited | 30/08/2018 |
01283 376 | Colt Technology Services | 24/08/2018 |
01283 377 | Mintaka Limited | 08/08/2017 |
01283 378 | Fuse 2 Communications Ltd | 03/07/2017 |
01283 379 | Virgin Media Limited | 29/08/2018 |
01283 380 | DIDWW Ireland Limited | 27/01/2020 |
01283 381 | BT | 12/10/2020 |
01283 382 | Virgin Media Limited | 13/11/2019 |
01283 383 | VOXYONDER NETWORK SERVICES UK LTD | 10/09/2020 |
01283 384 | BT | 23/12/2019 |
01283 385 | SiPalto Ltd | 29/05/2020 |
01283 386 | Mi Telecom Limited | 03/07/2020 |
01283 387 | Gamma Telecom Holdings Ltd | 12/10/2020 |
01283 388 | ICUK Computing Services Limited | 17/06/2020 |
01283 389 | Gamma Telecom Holdings Ltd | 24/03/2020 |
01283 41 | FleXtel Limited | 20/10/2005 |
01283 42 | TGL Services (UK) Ltd | 02/02/2015 |
01283 43 | TTNC Limited | 11/11/2013 |
01283 44 | GCI Network Solutions Ltd | 20/04/2017 |
01283 450 | Six Degrees Technology Group Limited | 13/01/2020 |
01283 454 | Six Degrees Technology Group Limited | 13/01/2020 |
01283 46 | TelNG Limited | 26/02/2007 |
01283 477 | Spitfire Network Services Limited | 09/11/2011 |
01283 480 | TalkTalk Communications Limited | 07/08/2007 |
01283 481 | Digital Space Group Limited | 15/03/2016 |
01283 482 | Digital Space Group Limited | 30/11/2007 |
01283 484 | VoIP-Un Limited | 26/10/2007 |
01283 485 | Lumen Technologies UK Limited | 23/04/2008 |
01283 486 | Commi Holdings Limited | 21/11/2016 |
01283 487 | TalkTalk Communications Limited | 13/02/2013 |
01283 489 | Telecoms World PLC | 12/03/2009 |
01283 49 | BT | 15/07/1994 |
01283 50 | BT | 15/07/1994 |
01283 51 | BT | 15/07/1994 |
01283 52 | BT | 15/07/1994 |
01283 53 | BT | 15/07/1994 |
01283 54 | BT | 15/07/1994 |
01283 55 | BT | 15/07/1994 |
01283 56 | BT | 15/07/1994 |
01283 57 | BT | 15/07/1994 |
01283 58 | BT | 15/07/1994 |
01283 59 | Vodafone Ltd (C&W) | 25/07/2013 |
01283 605 | Virgin Media Limited | 28/06/2012 |
01283 610 | (AQ) LIMITED | 19/10/2011 |
01283 611 | Entanet International Ltd | 14/12/2007 |
01283 612 | Solutios Limited | 12/09/2008 |
01283 613 | Invade International Ltd | 12/01/2016 |
01283 614 | Verizon UK Limited | 10/03/2008 |
01283 615 | Vectone Mobile Limited | 29/06/2009 |
01283 616 | Telecom2 Limited | 10/09/2009 |
01283 617 | Inet Telecoms Ltd (Voipfone) | 27/02/2009 |
01283 618 | IPV6 Limited | 29/01/2009 |
01283 619 | TalkTalk Communications Limited | 03/08/2009 |
01283 63 | Served Up Limited | 15/05/2008 |
01283 640 | Andrews & Arnold (Numbers) Ltd | 02/03/2009 |
01283 641 | TeleWare Group PLC | 20/08/2009 |
01283 642 | Barritel Limited | 08/10/2008 |
01283 643 | GCI Network Solutions Ltd | 19/04/2017 |
01283 644 | Mars Communications Limited | 03/02/2009 |
01283 645 | Nexus Telecommunications Limited | 31/03/2009 |
01283 646 | Dynamic Mobile Billing Limited | 09/04/2009 |
01283 647 | I-NET COMMUNICATIONS GROUP PLC | 12/01/2010 |
01283 649 | E164 Ltd | 15/04/2010 |
01283 66 | Citrus Telecommunications Ltd | 11/04/2006 |
01283 67 | Localphone Limited | 24/04/2007 |
01283 683 | Sky UK Limited | 03/12/2013 |
01283 684 | Buzz Networks Limited | 01/03/2010 |
01283 685 | Digitech Solutions Global Limited | 28/04/2010 |
01283 686 | Nodemax Limited | 07/07/2008 |
01283 688 | Voxbone SA | 17/12/2007 |
01283 689 | Suretec Systems Ltd | 04/05/2010 |
01283 690 | Resilient PLC | 18/05/2012 |
01283 691 | Resilient PLC | 18/05/2012 |
01283 699 | Resilient PLC | 18/05/2012 |
01283 70 | BT | 15/07/1994 |
01283 71 | BT | 15/07/1994 |
01283 72 | BT | 15/07/1994 |
01283 73 | BT | 15/07/1994 |
01283 74 | BT | 15/07/1994 |
01283 750 | Subtopia Limited | 28/07/2015 |
01283 751 | Telappliant Ltd | 01/06/2010 |
01283 752 | Sky UK Limited | 09/11/2015 |
01283 753 | Voiceflex Limited | 30/07/2007 |
01283 754 | Atomstream Limited | 26/02/2010 |
01283 755 | Net-Work Internet Ltd | 28/01/2008 |
01283 757 | CFL Communications Ltd | 08/07/2009 |
01283 758 | Calltracks Limited | 19/09/2013 |
01283 759 | Nationwide Telephone Assistance Ltd | 01/10/2007 |
01283 76 | BT | 15/07/1994 |
01283 777 | VoiceHost Limited | 22/06/2010 |
01283 78 | Syntec Limited | 22/11/2005 |
01283 79 | BT | 15/07/1994 |
01283 80 | Magrathea Telecommunications Limited | 24/09/2004 |
01283 81 | BT | 15/07/1994 |
01283 82 | BT | 15/07/1994 |
01283 83 | Vodafone Ltd (Energis) | 26/05/2006 |
01283 84 | BT | 15/07/1994 |
01283 850 | Inclarity Communications Limited | 16/02/2011 |
01283 851 | Inclarity Communications Limited | 16/02/2011 |
01283 852 | Inclarity Communications Limited | 16/02/2011 |
01283 855 | Inclarity Communications Limited | 16/02/2011 |
01283 860 | Vodafone Ltd (C&W) | 25/07/2013 |
01283 861 | Vodafone Ltd (C&W) | 25/07/2013 |
01283 862 | Vodafone Ltd (C&W) | 25/07/2013 |
01283 863 | Vodafone Ltd (C&W) | 25/07/2013 |
01283 864 | Vodafone Ltd (C&W) | 25/07/2013 |
01283 865 | Vodafone Ltd (C&W) | 25/07/2013 |
01283 866 | Vodafone Ltd (C&W) | 25/07/2013 |
01283 873 | Digital Space Group Limited | 12/04/2016 |
01283 88 | Affiniti Integrated Solutions Limited | 15/04/2004 |
01283 890 | Gamma Telecom Holdings Ltd | 17/09/2018 |
01283 891 | TalkTalk Communications Limited | 22/03/2019 |
01283 892 | Virgin Media Limited | 05/04/2019 |
01283 893 | Infinity Tracking Ltd | 16/05/2019 |
01283 894 | Gamma Telecom Holdings Ltd | 12/11/2019 |
01283 895 | BT | 11/01/2019 |
01283 896 | Belgacom International Carrier Services SA | 14/10/2019 |
01283 897 | Dial 9 Communications Limited | 25/10/2019 |
01283 898 | Virgin Media Limited | 12/09/2019 |
01283 899 | Gamma Telecom Holdings Ltd | 03/06/2019 |
01283 900 | Sky UK Limited | 18/06/2021 |
01283 902 | BT | 26/05/2021 |
01283 904 | BT | 28/06/2021 |
01283 907 | Gamma Telecom Holdings Ltd | 17/05/2021 |