01271 20 | TelNG Limited | 26/02/2007 |
01271 22 | Localphone Limited | 24/04/2007 |
01271 23 | Voiceflex Limited | 24/09/2007 |
01271 25 | TGL Services (UK) Ltd | 02/02/2015 |
01271 267 | TalkTalk Communications Limited | 18/01/2012 |
01271 268 | TalkTalk Communications Limited | 18/01/2012 |
01271 269 | TalkTalk Communications Limited | 18/01/2012 |
01271 28 | Nationwide Telephone Assistance Ltd | 01/10/2007 |
01271 290 | Resilient PLC | 18/05/2012 |
01271 291 | Resilient PLC | 18/05/2012 |
01271 299 | Resilient PLC | 18/05/2012 |
01271 30 | Vodafone Ltd (C&W) | 04/10/2013 |
01271 31 | BT | 15/07/1994 |
01271 32 | BT | 30/10/1997 |
01271 33 | BT | 15/07/1994 |
01271 34 | BT | 30/10/1997 |
01271 35 | Affiniti Integrated Solutions Limited | 03/07/2000 |
01271 360 | Vodafone Ltd (Thus) | 17/01/2012 |
01271 361 | Vodafone Ltd (Thus) | 17/01/2012 |
01271 362 | Vodafone Ltd (Thus) | 17/01/2012 |
01271 363 | Vodafone Ltd (Thus) | 17/01/2012 |
01271 366 | Vodafone Ltd (C&W) | 01/04/2019 |
01271 368 | Vodafone Ltd (Thus) | 17/01/2012 |
01271 369 | Vodafone Ltd (Thus) | 17/01/2012 |
01271 37 | BT | 30/10/1997 |
01271 38 | BT | 15/07/1994 |
01271 39 | BT | 15/07/1994 |
01271 40 | Redcentric Solutions Limited | 05/06/2015 |
01271 41 | AQL Wholesale Ltd | 01/11/2004 |
01271 44 | Gamma Telecom Holdings Ltd | 07/02/2005 |
01271 450 | Linear Telecoms Limited | 07/10/2010 |
01271 451 | Internexus Networks Limited | 18/11/2011 |
01271 452 | Simwood eSMS Limited | 10/02/2012 |
01271 453 | API Telecom Limited | 26/03/2012 |
01271 455 | ICC Networks Ltd | 12/04/2012 |
01271 456 | Bicom Systems EURL | 01/03/2012 |
01271 457 | IOVOX Limited | 02/07/2012 |
01271 458 | Ziron Limited | 30/07/2012 |
01271 46 | Citrus Telecommunications Ltd | 11/04/2006 |
01271 47 | GCI Network Solutions Ltd | 20/04/2017 |
01271 48 | FleXtel Limited | 20/10/2005 |
01271 494 | GTT-EMEA LTD | 14/10/2021 |
01271 496 | GTT-EMEA LTD | 14/10/2021 |
01271 497 | GTT-EMEA LTD | 14/10/2021 |
01271 499 | GTT-EMEA LTD | 14/10/2021 |
01271 500 | Voxbone SA | 08/12/2011 |
01271 517 | Digital Space Group Limited | 15/03/2016 |
01271 520 | Telecom2 Limited | 10/09/2009 |
01271 521 | Commi Holdings Limited | 21/11/2016 |
01271 522 | Net-Work Internet Ltd | 23/06/2008 |
01271 523 | TalkTalk Communications Limited | 13/02/2013 |
01271 524 | Solutios Limited | 03/09/2008 |
01271 525 | Nodemax Limited | 07/07/2008 |
01271 527 | Barritel Limited | 08/10/2008 |
01271 529 | Sky UK Limited | 23/10/2014 |
01271 530 | IPV6 Limited | 28/01/2009 |
01271 531 | Mars Communications Limited | 03/02/2009 |
01271 532 | Andrews & Arnold (Numbers) Ltd | 27/02/2009 |
01271 533 | Inet Telecoms Ltd (Voipfone) | 27/02/2009 |
01271 534 | Invade International Ltd | 12/01/2016 |
01271 535 | CFL Communications Ltd | 08/07/2009 |
01271 536 | Vectone Mobile Limited | 29/06/2009 |
01271 537 | TeleWare Group PLC | 20/08/2009 |
01271 539 | M247 Ltd | 29/05/2015 |
01271 540 | Nexus Telecommunications Limited | 25/09/2009 |
01271 542 | I-NET COMMUNICATIONS GROUP PLC | 12/01/2010 |
01271 543 | Atomstream Limited | 25/02/2010 |
01271 544 | Gamma Telecom Holdings Ltd | 11/03/2021 |
01271 545 | Buzz Networks Limited | 01/03/2010 |
01271 546 | E164 Ltd | 15/04/2010 |
01271 547 | Digitech Solutions Global Limited | 23/04/2010 |
01271 548 | Digitech Solutions Global Limited | 23/04/2010 |
01271 549 | Sky UK Limited | 26/06/2013 |
01271 550 | Suretec Systems Ltd | 04/05/2010 |
01271 551 | Calltracks Limited | 19/09/2013 |
01271 552 | Windsor Telecom Ltd | 20/07/2010 |
01271 553 | Core Telecom Limited | 05/08/2010 |
01271 554 | Numbergroup Utilities Ltd | 18/11/2010 |
01271 555 | VoiceHost Limited | 27/08/2010 |
01271 556 | Telephone Box Limited | 24/11/2010 |