01509 00 | Virgin Media Limited | 25/06/2001 |
01509 20 | Redcentric Solutions Limited | 05/06/2015 |
01509 21 | BT | 15/07/1994 |
01509 22 | BT | 15/07/1994 |
01509 23 | BT | 15/07/1994 |
01509 24 | BT | 15/07/1994 |
01509 25 | BT | 15/07/1994 |
01509 26 | BT | 15/07/1994 |
01509 27 | Gamma Telecom Holdings Ltd | 19/04/2004 |
01509 28 | BT | 15/07/1994 |
01509 290 | Inclarity Communications Limited | 08/11/2012 |
01509 291 | Inclarity Communications Limited | 08/11/2012 |
01509 292 | Inclarity Communications Limited | 08/11/2012 |
01509 295 | Inclarity Communications Limited | 08/11/2012 |
01509 31 | TelNG Limited | 27/02/2007 |
01509 320 | Voiceflex Limited | 27/09/2007 |
01509 321 | Entanet International Ltd | 20/12/2007 |
01509 322 | VoIP-Un Limited | 30/10/2007 |
01509 323 | AQL Wholesale Ltd | 04/01/2008 |
01509 324 | TalkTalk Communications Limited | 12/02/2013 |
01509 325 | TelXL Ltd | 12/02/2008 |
01509 326 | Telecom2 Limited | 11/09/2009 |
01509 327 | Digital Space Group Limited | 15/03/2016 |
01509 328 | Digital Space Group Limited | 01/05/2008 |
01509 329 | Telecoms World PLC | 14/04/2009 |
01509 33 | Verizon UK Limited | 18/04/2007 |
01509 340 | IPV6 Limited | 06/02/2009 |
01509 341 | Invade International Ltd | 12/01/2016 |
01509 342 | Solutios Limited | 27/10/2008 |
01509 344 | Mars Communications Limited | 05/02/2009 |
01509 345 | Nodemax Limited | 17/07/2008 |
01509 346 | Vectone Mobile Limited | 01/07/2009 |
01509 347 | Nexus Telecommunications Limited | 28/09/2009 |
01509 349 | GCI Network Solutions Ltd | 25/04/2017 |
01509 350 | Andrews & Arnold (Numbers) Ltd | 13/03/2009 |
01509 351 | Buzz Networks Limited | 01/03/2010 |
01509 352 | Calltracks Limited | 22/01/2014 |
01509 353 | Suretec Systems Ltd | 06/05/2010 |
01509 354 | Atomstream Limited | 23/03/2010 |
01509 356 | Core Telecom Limited | 06/08/2010 |
01509 357 | Inet Telecoms Ltd (Voipfone) | 19/08/2010 |
01509 358 | Nexbridge Communications Limited | 07/03/2012 |
01509 359 | I-NET COMMUNICATIONS GROUP PLC | 15/01/2010 |
01509 361 | Numbergroup Utilities Ltd | 02/11/2010 |
01509 362 | Phone Co-Op Numbering Limited | 22/12/2010 |
01509 363 | VoiceHost Limited | 05/10/2010 |
01509 365 | Numbers Plus Ltd | 28/07/2011 |
01509 366 | CFL Communications Ltd | 13/07/2009 |
01509 369 | Invosys Limited | 11/04/2012 |
01509 377 | Spitfire Network Services Limited | 10/11/2011 |
01509 380 | Voxbone SA | 21/01/2008 |
01509 381 | Orbtalk Limited | 16/09/2011 |
01509 382 | Internexus Networks Limited | 21/11/2011 |
01509 383 | Telappliant Ltd | 16/06/2010 |
01509 385 | Minotaur Telecom Limited | 04/02/2013 |
01509 387 | Invoco Ltd | 26/09/2011 |
01509 388 | Net-Work Internet Ltd | 30/10/2007 |
01509 389 | IP Wholesale Limited | 01/06/2017 |
01509 390 | Localphone Limited | 04/05/2007 |
01509 391 | (AQ) LIMITED | 19/10/2011 |
01509 392 | Digitech Solutions Global Limited | 27/04/2010 |
01509 393 | Windsor Telecom Ltd | 21/07/2010 |
01509 394 | Telephone Box Limited | 10/12/2010 |
01509 395 | Hello Telecom (UK) Limited | 11/11/2011 |
01509 396 | Tuxtel Ltd | 21/12/2011 |
01509 398 | Nationwide Telephone Assistance Ltd | 02/10/2007 |
01509 40 | TTNC Limited | 11/11/2013 |
01509 41 | BT | 15/07/1994 |
01509 420 | Bicom Systems EURL | 05/03/2012 |
01509 421 | API Telecom Limited | 30/03/2012 |
01509 422 | ICC Networks Ltd | 17/04/2012 |
01509 423 | Cloudcall Limited | 30/04/2012 |
01509 424 | I-NET COMMUNICATIONS GROUP PLC | 02/07/2012 |
01509 425 | Numbergroup Utilities Ltd | 29/04/2019 |
01509 426 | Simwood eSMS Limited | 01/05/2012 |
01509 427 | Ziron Limited | 30/07/2012 |
01509 428 | IOVOX Limited | 03/07/2012 |
01509 429 | Content Guru Limited | 15/10/2012 |
01509 430 | Media Hawk Ltd | 11/04/2013 |
01509 431 | Redwood Technologies Ltd | 15/11/2018 |
01509 432 | Orange Business Holdings UK Limited | 16/01/2013 |
01509 433 | Intrado Cloud Solutions Limited | 19/02/2013 |
01509 434 | Kalnet4U Ltd | 22/05/2013 |
01509 435 | Liquid 11 Limited | 13/06/2013 |
01509 436 | iHub 2 Limited | 18/05/2016 |
01509 437 | TalkTalk Communications Limited | 03/06/2014 |
01509 438 | Colt Technology Services | 14/10/2014 |
01509 439 | XoverX Ltd | 30/04/2013 |
01509 440 | YayYay Limited | 24/04/2015 |
01509 441 | Media Hawk Ltd | 02/12/2015 |
01509 442 | Alnitak GmbH | 31/08/2016 |
01509 443 | Media Hawk Ltd | 28/09/2016 |
01509 444 | Affiniti Integrated Solutions Limited | 18/02/2015 |
01509 445 | M247 Ltd | 20/05/2015 |
01509 446 | 24 SEVEN CLOUD COMMUNICATIONS LTD | 17/01/2020 |
01509 447 | IP Voice Networks Ltd | 20/09/2017 |
01509 448 | Number Services Ltd. | 22/11/2018 |
01509 449 | VOXYONDER NETWORK SERVICES UK LTD | 10/09/2020 |
01509 450 | I.T Communications Limited | 25/04/2017 |
01509 451 | Fuse 2 Communications Ltd | 03/07/2017 |
01509 452 | TalkTalk Communications Limited | 13/04/2018 |
01509 454 | Adepteo Limited | 17/01/2017 |
01509 455 | Lanonyx Telecom Limited | 10/08/2021 |
01509 457 | Club Communications Ltd | 31/07/2018 |
01509 458 | BT | 03/01/2019 |
01509 459 | Zapappi Ltd | 05/01/2018 |
01509 460 | Dial 9 Communications Limited | 10/12/2019 |
01509 461 | DIDWW Ireland Limited | 27/01/2020 |
01509 462 | Colt Technology Services | 06/09/2021 |
01509 465 | Mi Telecom Limited | 03/07/2020 |
01509 466 | ICUK Computing Services Limited | 20/09/2019 |
01509 467 | BT | 13/09/2021 |
01509 50 | BT | 15/07/1994 |
01509 51 | Vodafone Ltd (Thus) | 13/01/2012 |
01509 520 | Vodafone Ltd (C&W) | 04/09/2013 |
01509 521 | Vodafone Ltd (C&W) | 04/09/2013 |
01509 522 | Vodafone Ltd (C&W) | 04/09/2013 |
01509 523 | Vodafone Ltd (C&W) | 04/09/2013 |
01509 524 | Vodafone Ltd (C&W) | 04/09/2013 |
01509 527 | Vodafone Ltd (C&W) | 04/09/2013 |
01509 528 | Vodafone Ltd (C&W) | 04/09/2013 |
01509 530 | Linear Telecoms Limited | 12/10/2010 |
01509 55 | Virgin Media Limited | 06/12/1995 |
01509 56 | Virgin Media Limited | 09/07/1999 |
01509 570 | Six Degrees Technology Group Limited | 15/01/2020 |
01509 574 | Six Degrees Technology Group Limited | 15/01/2020 |
01509 583 | Digital Space Group Limited | 12/04/2016 |
01509 59 | GCI Network Solutions Ltd | 02/05/2017 |
01509 60 | BT | 15/07/1994 |
01509 61 | BT | 15/07/1994 |
01509 62 | BT | 15/07/1994 |
01509 63 | BT | 15/07/1994 |
01509 64 | BT | 15/07/1994 |
01509 65 | BT | 15/07/1994 |
01509 67 | BT | 15/07/1994 |
01509 68 | BT | 15/07/1994 |
01509 69 | Syntec Limited | 01/03/2005 |
01509 70 | FleXtel Limited | 21/10/2005 |
01509 71 | TGL Services (UK) Ltd | 02/02/2015 |
01509 725 | Virgin Media Limited | 29/06/2012 |
01509 726 | Virgin Media Limited | 29/06/2012 |
01509 727 | Virgin Media Limited | 29/06/2012 |
01509 728 | Virgin Media Limited | 29/06/2012 |
01509 729 | Virgin Media Limited | 29/06/2012 |
01509 73 | Sky UK Limited | 05/07/2013 |
01509 74 | Barritel Limited | 21/08/2006 |
01509 751 | GTT-EMEA LTD | 14/10/2021 |
01509 752 | GTT-EMEA LTD | 14/10/2021 |
01509 754 | GTT-EMEA LTD | 14/10/2021 |
01509 756 | GTT-EMEA LTD | 14/10/2021 |
01509 757 | GTT-EMEA LTD | 14/10/2021 |
01509 759 | GTT-EMEA LTD | 14/10/2021 |
01509 767 | TalkTalk Communications Limited | 19/01/2012 |
01509 768 | TalkTalk Communications Limited | 19/01/2012 |
01509 769 | TalkTalk Communications Limited | 19/01/2012 |
01509 78 | Served Up Limited | 27/05/2008 |
01509 80 | Magrathea Telecommunications Limited | 24/09/2004 |
01509 81 | BT | 15/07/1994 |
01509 82 | Virgin Media Limited | 15/07/1994 |
01509 83 | Vodafone Ltd (C&W) | 04/09/2013 |
01509 84 | BT | 15/07/1994 |
01509 85 | BT | 15/07/1994 |
01509 86 | Affiniti Integrated Solutions Limited | 05/05/2000 |
01509 878 | Vodafone Ltd (C&W) | 10/08/2015 |
01509 88 | BT | 15/07/1994 |
01509 89 | BT | 15/07/1994 |
01509 972 | Gamma Telecom Holdings Ltd | 12/04/2021 |
01509 974 | BT | 23/04/2020 |
01509 975 | Colt Technology Services | 14/04/2020 |
01509 978 | Belgacom International Carrier Services SA | 06/02/2020 |
01509 979 | SiPalto Ltd | 29/05/2020 |