01242 14 | Virgin Media Limited | 16/03/2016 |
01242 19 | BT | 17/03/1998 |
01242 21 | BT | 15/06/1998 |
01242 22 | BT | 15/07/1994 |
01242 23 | BT | 15/07/1994 |
01242 24 | BT | 15/07/1994 |
01242 25 | BT | 15/07/1994 |
01242 26 | BT | 15/07/1994 |
01242 27 | BT | 15/07/1994 |
01242 28 | BT | 15/07/1994 |
01242 29 | Vodafone Ltd (Energis) | 26/05/2006 |
01242 300 | TalkTalk Communications Limited | 16/05/2007 |
01242 301 | Localphone Limited | 22/05/2007 |
01242 303 | Voiceflex Limited | 27/07/2007 |
01242 304 | Andrews & Arnold Ltd | 20/08/2007 |
01242 305 | (AQ) LIMITED | 19/10/2011 |
01242 306 | Net-Work Internet Ltd | 21/09/2007 |
01242 307 | Orange Business Holdings UK Limited | 26/02/2013 |
01242 308 | VoIP-Un Limited | 26/10/2007 |
01242 309 | Nationwide Telephone Assistance Ltd | 01/10/2007 |
01242 310 | Digital Space Group Limited | 29/11/2007 |
01242 311 | Digital Space Group Limited | 15/03/2016 |
01242 312 | Voxbone SA | 10/12/2007 |
01242 313 | Digital Mail Limited | 29/04/2008 |
01242 314 | Telecom2 Limited | 11/09/2009 |
01242 315 | Nodemax Limited | 15/07/2008 |
01242 316 | Commi Holdings Limited | 21/11/2016 |
01242 317 | TalkTalk Communications Limited | 13/02/2013 |
01242 318 | Solutios Limited | 27/08/2008 |
01242 321 | TalkTalk Communications Limited | 19/01/2009 |
01242 322 | IPV6 Limited | 27/01/2009 |
01242 323 | Inet Telecoms Ltd (Voipfone) | 17/11/2008 |
01242 324 | Mars Communications Limited | 04/02/2009 |
01242 325 | Andrews & Arnold (Numbers) Ltd | 26/02/2009 |
01242 326 | Telecoms World PLC | 09/03/2009 |
01242 329 | Windsor Telecom Ltd | 19/07/2010 |
01242 330 | I-NET COMMUNICATIONS GROUP PLC | 14/04/2009 |
01242 331 | New Call Telecom Ltd | 18/02/2015 |
01242 332 | TeleWare Group PLC | 21/02/2013 |
01242 333 | Vectone Mobile Limited | 29/06/2009 |
01242 334 | CFL Communications Ltd | 07/07/2009 |
01242 335 | BT | 23/01/2015 |
01242 337 | Nexus Telecommunications Limited | 25/09/2009 |
01242 339 | Gamma Telecom Holdings Ltd | 11/03/2021 |
01242 340 | Suretec Systems Ltd | 29/04/2010 |
01242 341 | Numbergroup Utilities Ltd | 02/11/2010 |
01242 342 | Calltracks Limited | 19/09/2013 |
01242 343 | Core Telecom Limited | 05/08/2010 |
01242 344 | Atomstream Limited | 15/11/2010 |
01242 346 | IP Wholesale Limited | 01/06/2017 |
01242 347 | Nexbridge Communications Limited | 06/03/2012 |
01242 348 | Internexus Networks Limited | 18/11/2011 |
01242 349 | Tuxtel Ltd | 21/12/2011 |
01242 350 | Simwood eSMS Limited | 02/02/2012 |
01242 351 | Bicom Systems EURL | 02/03/2012 |
01242 352 | TalkTalk Communications Limited | 16/03/2012 |
01242 353 | API Telecom Limited | 26/03/2012 |
01242 354 | IOVOX Limited | 03/04/2012 |
01242 356 | ICC Networks Ltd | 12/04/2012 |
01242 357 | Hello Telecom (UK) Limited | 25/07/2012 |
01242 358 | Ziron Limited | 27/07/2012 |
01242 360 | Minotaur Telecom Limited | 01/02/2013 |
01242 361 | TalkTalk Communications Limited | 24/01/2013 |
01242 362 | Media Hawk Ltd | 10/04/2013 |
01242 363 | Colt Technology Services | 30/01/2013 |
01242 364 | XoverX Ltd | 02/05/2013 |
01242 365 | BT | 28/09/2009 |
01242 366 | BT | 28/09/2009 |
01242 367 | BT | 28/09/2009 |
01242 368 | BT | 28/09/2009 |
01242 369 | BT | 28/09/2009 |
01242 370 | BT | 09/10/2013 |
01242 371 | Vonage Limited | 26/01/2015 |
01242 372 | Content Guru Limited | 29/08/2013 |
01242 373 | TalkTalk Communications Limited | 26/03/2015 |
01242 374 | Kalnet4U Ltd | 08/05/2013 |
01242 375 | Invoco Ltd | 18/10/2013 |
01242 376 | M247 Ltd | 29/05/2015 |
01242 377 | iHub 2 Limited | 18/05/2016 |
01242 378 | Redwood Technologies Ltd | 15/11/2018 |
01242 379 | YayYay Limited | 23/04/2015 |
01242 380 | Lanonyx Telecom Limited | 10/08/2021 |
01242 381 | Media Hawk Ltd | 02/12/2015 |
01242 382 | Colt Technology Services | 05/07/2021 |
01242 383 | Voxbone SA | 13/10/2021 |
01242 384 | Gamma Telecom Holdings Ltd | 16/02/2016 |
01242 385 | Mintaka Limited | 12/05/2016 |
01242 386 | Gamma Telecom Holdings Ltd | 14/09/2016 |
01242 387 | Gamma Telecom Holdings Ltd | 11/10/2016 |
01242 388 | Colt Technology Services | 11/02/2016 |
01242 390 | Belgacom International Carrier Services SA | 20/06/2016 |
01242 391 | Adepteo Limited | 16/01/2017 |
01242 392 | Number Services Ltd. | 22/11/2018 |
01242 393 | IOVOX Limited | 23/12/2016 |
01242 394 | Fuse 2 Communications Ltd | 03/07/2017 |
01242 395 | Gamma Telecom Holdings Ltd | 12/05/2017 |
01242 396 | I.T Communications Limited | 18/10/2016 |
01242 397 | Orbtalk Limited | 01/12/2017 |
01242 398 | Entanet International Ltd | 05/12/2017 |
01242 399 | NFON UK Ltd | 20/09/2017 |
01242 406 | Virgin Media Limited | 16/03/2016 |
01242 407 | Virgin Media Limited | 20/06/2012 |
01242 408 | Virgin Media Limited | 16/03/2016 |
01242 409 | Virgin Media Limited | 20/06/2012 |
01242 410 | GTT-EMEA LTD | 14/10/2021 |
01242 412 | GTT-EMEA LTD | 14/10/2021 |
01242 415 | GTT-EMEA LTD | 14/10/2021 |
01242 42 | TTNC Limited | 11/11/2013 |
01242 430 | VoiceHost Limited | 29/07/2010 |
01242 431 | BT | 26/09/2019 |
01242 432 | SiPalto Ltd | 23/01/2020 |
01242 433 | Dial 9 Communications Limited | 09/12/2019 |
01242 434 | ICUK Computing Services Limited | 20/09/2019 |
01242 435 | VOXYONDER NETWORK SERVICES UK LTD | 28/08/2020 |
01242 436 | Colt Technology Services | 23/06/2020 |
01242 437 | BT | 03/12/2020 |
01242 438 | TELNYX UK LIMITED | 07/05/2020 |
01242 439 | Gamma Telecom Holdings Ltd | 22/09/2021 |
01242 444 | Served Up Limited | 01/03/2013 |
01242 445 | Served Up Limited | 01/03/2013 |
01242 453 | Digital Space Group Limited | 12/04/2016 |
01242 46 | Sky UK Limited | 21/06/2013 |
01242 470 | Voiceflex Limited | 19/02/2019 |
01242 471 | TalkTalk Communications Limited | 22/03/2019 |
01242 472 | Gamma Telecom Holdings Ltd | 20/01/2021 |
01242 474 | Gamma Telecom Holdings Ltd | 04/01/2019 |
01242 48 | Citrus Telecommunications Ltd | 08/03/2006 |
01242 50 | Gamma Telecom Holdings Ltd | 01/03/2004 |
01242 51 | BT | 15/07/1994 |
01242 52 | BT | 15/07/1994 |
01242 53 | BT | 15/07/1994 |
01242 54 | BT | 15/07/1994 |
01242 55 | Vodafone Ltd (C&W) | 01/04/2019 |
01242 560 | Inclarity Communications Limited | 06/12/2010 |
01242 561 | Inclarity Communications Limited | 06/12/2010 |
01242 562 | Inclarity Communications Limited | 06/12/2010 |
01242 563 | Inclarity Communications Limited | 06/12/2010 |
01242 564 | Gamma Telecom Holdings Ltd | 16/11/2020 |
01242 565 | Inclarity Communications Limited | 06/12/2010 |
01242 566 | Mi Telecom Limited | 03/07/2020 |
01242 567 | Gamma Telecom Holdings Ltd | 16/11/2020 |
01242 568 | Gamma Telecom Holdings Ltd | 16/11/2020 |
01242 569 | Gamma Telecom Holdings Ltd | 16/09/2020 |
01242 57 | BT | 15/07/1994 |
01242 58 | BT | 15/07/1994 |
01242 590 | Linear Telecoms Limited | 04/10/2010 |
01242 591 | DIDWW Ireland Limited | 27/01/2020 |
01242 60 | BT | 15/07/1994 |
01242 610 | Digitech Solutions Global Limited | 22/06/2012 |
01242 62 | BT | 15/07/1994 |
01242 63 | Vodafone Ltd (C&W) | 03/10/2013 |
01242 64 | Vodafone Ltd (C&W) | 03/10/2013 |
01242 65 | AQL Wholesale Ltd | 01/11/2004 |
01242 66 | BT | 15/07/1994 |
01242 67 | BT | 15/07/1994 |
01242 68 | BT | 15/07/1994 |
01242 69 | Virgin Media Limited | 16/03/2016 |
01242 70 | Virgin Media Limited | 16/03/2016 |
01242 71 | Virgin Media Limited | 16/03/2016 |
01242 729 | Vodafone Ltd (C&W) | 10/08/2015 |
01242 73 | Redcentric Solutions Limited | 05/06/2015 |
01242 75 | Vodafone Ltd (C&W) | 03/10/2013 |
01242 76 | TGL Services (UK) Ltd | 02/02/2015 |
01242 77 | Virgin Media Limited | 16/03/2016 |
01242 787 | Spitfire Network Services Limited | 21/07/2011 |
01242 79 | GCI Network Solutions Ltd | 20/04/2017 |
01242 800 | Magrathea Telecommunications Limited | 16/11/2011 |
01242 801 | Magrathea Telecommunications Limited | 16/11/2011 |
01242 802 | Magrathea Telecommunications Limited | 16/11/2011 |
01242 803 | Hyperoptic Ltd | 13/09/2021 |
01242 806 | Magrathea Telecommunications Limited | 16/11/2011 |
01242 807 | Magrathea Telecommunications Limited | 16/11/2011 |
01242 808 | Magrathea Telecommunications Limited | 16/11/2011 |
01242 809 | Magrathea Telecommunications Limited | 16/11/2011 |
01242 810 | TelXL Ltd | 27/07/2011 |
01242 818 | TelXL Ltd | 27/07/2011 |
01242 819 | TelXL Ltd | 27/07/2011 |
01242 82 | BT | 15/07/1994 |
01242 83 | FleXtel Limited | 19/10/2005 |
01242 84 | BT | 15/07/1994 |
01242 850 | Affiniti Integrated Solutions Limited | 16/12/2011 |
01242 851 | Affiniti Integrated Solutions Limited | 16/12/2011 |
01242 854 | Affiniti Integrated Solutions Limited | 16/12/2011 |
01242 855 | Affiniti Integrated Solutions Limited | 16/12/2011 |
01242 858 | Affiniti Integrated Solutions Limited | 16/12/2011 |
01242 86 | BT | 15/07/1994 |
01242 87 | BT | 15/07/1994 |
01242 88 | Vodafone Ltd (C&W) | 03/10/2013 |
01242 89 | BT | 15/07/1994 |
01242 900 | Invosys Limited | 23/08/2017 |
01242 901 | Zapappi Ltd | 26/10/2017 |
01242 902 | Telappliant Ltd | 05/04/2018 |
01242 903 | Gamma Telecom Holdings Ltd | 03/04/2018 |
01242 904 | Club Communications Ltd | 18/05/2018 |
01242 905 | Telecom 10 Ltd | 30/05/2018 |
01242 906 | BT | 26/06/2018 |
01242 907 | Colt Technology Services | 24/08/2018 |
01242 908 | Colt Technology Services | 26/06/2018 |
01242 909 | IP Voice Networks Ltd | 20/09/2017 |
01242 91 | Invade International Ltd | 20/01/2016 |
01242 92 | IV Response Limited | 04/07/2005 |
01242 93 | Syntec Limited | 17/11/2005 |
01242 950 | Resilient PLC | 09/09/2011 |
01242 959 | Resilient PLC | 09/09/2011 |
01242 964 | Six Degrees Technology Group Limited | 14/01/2020 |
01242 98 | Barritel Limited | 09/03/2006 |