01892 20 | Redcentric Solutions Limited | 05/06/2015 |
01892 21 | TelNG Limited | 01/03/2007 |
01892 222 | Digital Mail Limited | 19/05/2016 |
01892 230 | Solutios Limited | 26/11/2008 |
01892 231 | Sky UK Limited | 03/12/2013 |
01892 233 | Net-Work Internet Ltd | 03/11/2008 |
01892 234 | Vonage Limited | 23/01/2015 |
01892 235 | Mars Communications Limited | 06/02/2009 |
01892 236 | IPV6 Limited | 16/02/2009 |
01892 237 | Andrews & Arnold (Numbers) Ltd | 09/04/2009 |
01892 238 | Nexus Telecommunications Limited | 06/10/2009 |
01892 239 | Verizon UK Limited | 06/11/2009 |
01892 240 | BT | 27/01/2015 |
01892 241 | CFL Communications Ltd | 20/07/2009 |
01892 242 | Telecoms World PLC | 25/06/2009 |
01892 243 | Vectone Mobile Limited | 01/07/2009 |
01892 244 | Verizon UK Limited | 06/11/2009 |
01892 246 | I-NET COMMUNICATIONS GROUP PLC | 14/01/2010 |
01892 247 | TeleWare Group PLC | 27/01/2010 |
01892 249 | Buzz Networks Limited | 01/03/2010 |
01892 250 | Calltracks Limited | 20/09/2013 |
01892 251 | Simwood eSMS Limited | 03/08/2010 |
01892 252 | Atomstream Limited | 12/04/2010 |
01892 253 | Core Telecom Limited | 06/08/2010 |
01892 254 | Telappliant Ltd | 28/06/2010 |
01892 255 | Suretec Systems Ltd | 13/05/2010 |
01892 256 | Windsor Telecom Ltd | 29/07/2010 |
01892 257 | VoiceHost Limited | 06/10/2010 |
01892 258 | Numbergroup Utilities Ltd | 04/11/2010 |
01892 259 | Telephone Box Limited | 10/12/2010 |
01892 261 | Phone Co-Op Numbering Limited | 23/12/2010 |
01892 263 | Sky UK Limited | 03/12/2013 |
01892 265 | Numbers Plus Ltd | 28/07/2011 |
01892 266 | IP Wholesale Limited | 01/06/2017 |
01892 267 | Orbtalk Limited | 23/08/2011 |
01892 268 | Nexbridge Communications Limited | 09/03/2012 |
01892 269 | Invosys Limited | 11/04/2012 |
01892 270 | Localphone Limited | 23/05/2007 |
01892 271 | Entanet International Ltd | 20/12/2007 |
01892 272 | Barritel Limited | 21/06/2007 |
01892 273 | Lumen Technologies UK Limited | 04/09/2007 |
01892 274 | Orange Business Holdings UK Limited | 26/02/2013 |
01892 275 | Nodemax Limited | 14/07/2008 |
01892 276 | Telecom2 Limited | 10/09/2009 |
01892 277 | VoIP-Un Limited | 08/11/2007 |
01892 278 | TalkTalk Communications Limited | 14/02/2013 |
01892 280 | Voiceflex Limited | 30/07/2007 |
01892 281 | Voxbone SA | 29/09/2008 |
01892 282 | TGL Services (UK) Ltd | 02/02/2015 |
01892 283 | (AQ) LIMITED | 26/09/2012 |
01892 284 | Digital Space Group Limited | 04/06/2008 |
01892 285 | Served Up Limited | 20/10/2008 |
01892 286 | Digital Space Group Limited | 15/03/2016 |
01892 288 | Invade International Ltd | 13/01/2016 |
01892 289 | Nationwide Telephone Assistance Ltd | 22/10/2007 |
01892 290 | Resilient PLC | 18/05/2012 |
01892 291 | Resilient PLC | 18/05/2012 |
01892 299 | Resilient PLC | 18/05/2012 |
01892 300 | Inet Telecoms Ltd (Voipfone) | 21/10/2011 |
01892 301 | Minotaur Telecom Limited | 06/02/2013 |
01892 302 | Internexus Networks Limited | 22/11/2011 |
01892 303 | Hello Telecom (UK) Limited | 02/02/2012 |
01892 304 | Bicom Systems EURL | 01/03/2012 |
01892 306 | ICC Networks Ltd | 18/04/2012 |
01892 307 | API Telecom Limited | 19/04/2012 |
01892 308 | Invoco Ltd | 22/05/2012 |
01892 309 | Sky UK Limited | 03/12/2013 |
01892 310 | IOVOX Limited | 04/07/2012 |
01892 311 | Ziron Limited | 01/08/2012 |
01892 313 | Colt Technology Services | 18/07/2012 |
01892 314 | Content Guru Limited | 11/10/2012 |
01892 315 | TalkTalk Communications Limited | 16/10/2012 |
01892 317 | Media Hawk Ltd | 10/04/2013 |
01892 318 | Intrado Cloud Solutions Limited | 19/02/2013 |
01892 319 | Sky UK Limited | 03/12/2013 |
01892 320 | BT | 24/10/2013 |
01892 321 | Vodafone Ltd (C&W) | 27/11/2013 |
01892 322 | Kalnet4U Ltd | 13/12/2013 |
01892 323 | Redwood Technologies Ltd | 15/11/2018 |
01892 324 | iHub 2 Limited | 18/05/2016 |
01892 325 | Sky UK Limited | 15/09/2014 |
01892 326 | Metronet (UK) Limited | 21/05/2019 |
01892 327 | Sky UK Limited | 22/09/2015 |
01892 328 | YayYay Limited | 24/04/2015 |
01892 329 | Sky UK Limited | 21/08/2013 |
01892 330 | Zapappi Ltd | 05/01/2018 |
01892 331 | Sky UK Limited | 20/04/2017 |
01892 332 | Number Services Ltd. | 22/11/2018 |
01892 333 | IOVOX Limited | 31/01/2017 |
01892 334 | Fuse 2 Communications Ltd | 03/07/2017 |
01892 335 | Gamma Telecom Holdings Ltd | 07/02/2018 |
01892 336 | IP Voice Networks Ltd | 20/09/2017 |
01892 337 | Gamma Telecom Holdings Ltd | 01/06/2017 |
01892 338 | TalkTalk Communications Limited | 25/07/2018 |
01892 339 | Club Communications Ltd | 13/08/2018 |
01892 340 | Voxbone SA | 17/06/2020 |
01892 341 | BT | 13/10/2020 |
01892 342 | Colt Technology Services | 27/05/2020 |
01892 343 | VOXYONDER NETWORK SERVICES UK LTD | 10/09/2020 |
01892 344 | Sky UK Limited | 12/03/2021 |
01892 345 | SiPalto Ltd | 26/06/2020 |
01892 346 | Voxbone SA | 19/07/2021 |
01892 347 | BT | 28/09/2021 |
01892 348 | Belgacom International Carrier Services SA | 10/07/2020 |
01892 350 | Lanonyx Telecom Limited | 10/08/2021 |
01892 351 | Gamma Telecom Holdings Ltd | 19/10/2020 |
01892 352 | Gamma Telecom Holdings Ltd | 22/04/2021 |
01892 353 | Mi Telecom Limited | 06/07/2020 |
01892 354 | Gamma Telecom Holdings Ltd | 30/03/2020 |
01892 413 | Digital Space Group Limited | 12/04/2016 |
01892 420 | Linear Telecoms Limited | 19/10/2010 |
01892 44 | GCI Network Solutions Ltd | 02/05/2017 |
01892 457 | TalkTalk Communications Limited | 18/01/2012 |
01892 458 | TalkTalk Communications Limited | 18/01/2012 |
01892 459 | TalkTalk Communications Limited | 18/01/2012 |
01892 480 | Vodafone Ltd (C&W) | 01/10/2019 |
01892 481 | Gamma Telecom Holdings Ltd | 04/01/2019 |
01892 482 | Sky UK Limited | 04/11/2019 |
01892 483 | Calltracks Limited | 13/02/2019 |
01892 484 | DIDWW Ireland Limited | 22/01/2019 |
01892 485 | Dial 9 Communications Limited | 08/01/2020 |
01892 486 | Colt Technology Services | 05/04/2019 |
01892 487 | BT | 05/09/2019 |
01892 488 | ICUK Computing Services Limited | 12/08/2019 |
01892 489 | Gamma Telecom Holdings Ltd | 01/08/2019 |
01892 49 | FleXtel Limited | 21/10/2005 |
01892 50 | BT | 15/07/1994 |
01892 51 | BT | 15/07/1994 |
01892 52 | BT | 15/07/1994 |
01892 53 | BT | 15/07/1994 |
01892 54 | BT | 15/07/1994 |
01892 55 | BT | 15/07/1994 |
01892 56 | Tuxtel Ltd | 06/11/2009 |
01892 57 | Gamma Telecom Holdings Ltd | 16/02/2004 |
01892 580 | Vodafone Ltd (C&W) | 06/09/2013 |
01892 581 | Vodafone Ltd (C&W) | 06/09/2013 |
01892 582 | Vodafone Ltd (C&W) | 06/09/2013 |
01892 583 | Vodafone Ltd (C&W) | 06/09/2013 |
01892 584 | Vodafone Ltd (C&W) | 06/09/2013 |
01892 585 | Vodafone Ltd (C&W) | 06/09/2013 |
01892 586 | Vodafone Ltd (C&W) | 06/09/2013 |
01892 59 | Vodafone Ltd (C&W) | 09/09/2013 |
01892 60 | BT | 15/07/1994 |
01892 61 | BT | 28/04/1997 |
01892 62 | Affiniti Integrated Solutions Limited | 13/06/2001 |
01892 63 | Virgin Media Limited | 17/03/2016 |
01892 64 | TTNC Limited | 13/11/2013 |
01892 65 | BT | 15/07/1994 |
01892 66 | BT | 15/07/1994 |
01892 67 | Virgin Media Limited | 14/03/2016 |
01892 68 | Virgin Media Limited | 14/03/2016 |
01892 693 | Virgin Media Limited | 14/03/2016 |
01892 694 | Virgin Media Limited | 14/03/2016 |
01892 695 | Virgin Media Limited | 14/03/2016 |
01892 696 | Virgin Media Limited | 14/03/2016 |
01892 697 | Virgin Media Limited | 14/03/2016 |
01892 699 | Virgin Media Limited | 14/03/2016 |
01892 70 | BT | 15/07/1994 |
01892 71 | WAVECREST NETWORKS LIMITED | 16/12/2019 |
01892 72 | BT | 15/07/1994 |
01892 73 | BT | 15/07/1994 |
01892 74 | BT | 15/07/1994 |
01892 75 | BT | 15/07/1994 |
01892 764 | Six Degrees Technology Group Limited | 14/01/2020 |
01892 765 | Six Degrees Technology Group Limited | 14/01/2020 |
01892 766 | Six Degrees Technology Group Limited | 14/01/2020 |
01892 769 | Six Degrees Technology Group Limited | 14/01/2020 |
01892 77 | BT | 15/07/1994 |
01892 78 | BT | 15/07/1994 |
01892 79 | BT | 15/07/1994 |
01892 80 | AQL Wholesale Ltd | 01/11/2004 |
01892 82 | BT | 15/07/1994 |
01892 83 | BT | 15/07/1994 |
01892 840 | Inclarity Communications Limited | 08/11/2012 |
01892 841 | Inclarity Communications Limited | 08/11/2012 |
01892 842 | Inclarity Communications Limited | 08/11/2012 |
01892 845 | Inclarity Communications Limited | 08/11/2012 |
01892 85 | BT | 15/07/1994 |
01892 86 | BT | 15/07/1994 |
01892 87 | BT | 15/07/1994 |
01892 88 | Magrathea Telecommunications Limited | 24/09/2004 |
01892 89 | BT | 15/07/1994 |
01892 932 | GTT-EMEA LTD | 13/10/2021 |
01892 935 | GTT-EMEA LTD | 13/10/2021 |
01892 936 | GTT-EMEA LTD | 13/10/2021 |
01892 937 | GTT-EMEA LTD | 13/10/2021 |
01892 950 | Internet of Things Limited | 13/08/2018 |
01892 951 | Media Hawk Ltd | 25/11/2015 |
01892 952 | Media Hawk Ltd | 28/09/2016 |
01892 953 | Adepteo Limited | 29/11/2016 |
01892 954 | I.T Communications Limited | 18/10/2016 |
01892 956 | Colt Technology Services | 04/06/2018 |
01892 957 | Alnitak GmbH | 06/01/2017 |
01892 958 | NFON UK Ltd | 29/08/2018 |
01892 977 | Spitfire Network Services Limited | 11/11/2011 |
01892 98 | Syntec Limited | 22/11/2005 |