This page contains information about which telephone companies the various 01213 numbers are allocated to.
| First Digits | Status | Communications Provider | Number Length | Notes | Change |
|---|---|---|---|---|---|
| 0121 300 | Allocated | Vodafone Ltd (YC) | 3+7 | - | 31/08/2011 |
| 0121 301 | Allocated | Virgin Media Wholesale Limited | 3+7 | - | 28/10/2009 |
| 0121 302 | Allocated | Netfuse Telecom Ltd | 3+7 | F-Digit '0,1' | 24/05/2013 |
| 0121 303 | Allocated | Virgin Media Wholesale Limited | 3+7 | - | 28/10/2009 |
| 0121 304 | Allocated | Voicetec Systems Ltd | 3+7 | - | 22/06/2006 |
| 0121 305 | Allocated | Danemere Street Creative | 3+7 | F-Digit '2' | 30/06/2006 |
| 0121 306 | Allocated | BT | 3+7 | - | 15/07/1994 |
| 0121 307 | Allocated | Resilient Networks Plc | 3+7 | F-Digit '9' | 29/11/2006 |
| 0121 308 | Allocated | BT | 3+7 | - | 15/07/1994 |
| 0121 309 | Allocated | VoIP-Un Limited | 3+7 | F-Digit '0' | 25/10/2007 |
| 0121 310 | Allocated | Subhan Universal Limited | 3+7 | - | 03/02/2009 |
| 0121 311 | Allocated | BT | 3+7 | - | 15/07/1994 |
| 0121 312 | Allocated | Aggregated Telecom Ltd | 3+7 | - | 23/09/2005 |
| 0121 313 | Allocated | BT | 3+7 | - | 01/01/1994 |
| 0121 314 | Allocated | Magrathea Telecommunications Limited | 3+7 | - | 01/03/2004 |
| 0121 315 | Allocated | Vodafone Ltd (C&W) | 3+7 | F-Digits 0,1,2,3,4,5,6,7,8,9' | 04/02/2010 |
| 0121 316 | Allocated | Invomo Ltd | 3+7 | F-Digit '1' | 30/01/2008 |
| 0121 317 | Allocated | QX Telecom Ltd | 3+7 | F-Digit '3' | 17/10/2007 |
| 0121 318 | Allocated | Wavecrest (UK) Ltd | 3+7 | - | 03/12/2004 |
| 0121 319 | Allocated | Square Systems Limited | 3+7 | F-Digit '0' | 26/10/2007 |
| 0121 320 | Allocated | Vodafone Ltd (C&W) | 3+7 | F-Digit '2' | 24/02/2006 |
| 0121 321 | Allocated | BT | 3+7 | - | 15/07/1994 |
| 0121 322 | Allocated | BT | 3+7 | - | 15/07/1994 |
| 0121 323 | Allocated | BT | 3+7 | - | 15/07/1994 |
| 01213 24 | Protected | - | 3+7 | - | - |
| 0121 325 | Allocated | BT | 3+7 | - | 15/07/1994 |
| 0121 326 | Allocated | BT | 3+7 | - | 15/07/1994 |
| 0121 327 | Allocated | BT | 3+7 | - | 15/07/1994 |
| 0121 328 | Allocated | BT | 3+7 | - | 15/07/1994 |
| 0121 329 | Allocated | BT | 3+7 | - | 15/07/1994 |
| 0121 330 | Allocated | FleXtel Limited | 3+7 | - | 19/10/2004 |
| 0121 331 | Allocated | BT | 3+7 | - | 15/07/1994 |
| 0121 332 | Allocated | BT | 3+7 | - | 15/07/1994 |
| 0121 333 | Allocated | BT | 3+7 | - | 15/07/1994 |
| 0121 334 | Allocated | BT | 3+7 | - | 15/07/1994 |
| 0121 335 | Allocated | Vodafone Ltd (C&W) | 3+7 | F-Digits '0,1,2,3,4,5,6,7,8,9' | 04/02/2010 |
| 0121 336 | Allocated | Vodafone Ltd (Energis) | 3+7 | - | 26/05/2006 |
| 0121 337 | Allocated | Edge Telecom Limited | 3+7 | - | 03/05/2004 |
| 0121 338 | Allocated | Reality Network Services Limited | 3+7 | - | 18/07/2005 |
| 0121 339 | Allocated | Liquid 11 Limited | 3+7 | F-Digit '5' | 26/04/2010 |
| 0121 340 | Allocated | Alphatalk Ltd | 3+7 | - | 29/06/2005 |
| 0121 341 | Allocated | Annecto Telecom | 3+7 | F-Digit '2' | 06/09/2007 |
| 0121 342 | Allocated | BT | 3+7 | F-Digit '0,1,2,3,4,5,6,7,8,9' | 03/01/2007 |
| 0121 343 | Allocated | BT | 3+7 | - | 12/10/2004 |
| 0121 344 | Allocated | BT | 3+7 | - | 15/07/1994 |
| 0121 345 | Allocated | Level 3 Communications UK Limited | 3+7 | - | 09/09/1999 |
| 0121 346 | Allocated | BT | 3+7 | - | 12/10/2007 |
| 0121 347 | Allocated | BT | 3+7 | - | 07/05/1999 |
| 0121 348 | Allocated | Spitfire Network Services Ltd | 3+7 | F-Digit '7,8' | 27/06/2006 |
| 0121 349 | Allocated | Timico Limited | 3+7 | F-Digit '8' | 29/11/2007 |
| 0121 350 | Allocated | BT | 3+7 | - | 15/07/1994 |
| 0121 351 | Allocated | BT | 3+7 | - | 15/07/1994 |
| 0121 352 | Allocated | BT | 3+7 | - | 15/07/1994 |
| 0121 353 | Allocated | BT | 3+7 | - | 15/07/1994 |
| 0121 354 | Allocated | BT | 3+7 | - | 15/07/1994 |
| 0121 355 | Allocated | BT | 3+7 | - | 15/07/1994 |
| 0121 356 | Allocated | BT | 3+7 | - | 15/07/1994 |
| 0121 357 | Allocated | BT | 3+7 | - | 15/07/1994 |
| 0121 358 | Allocated | BT | 3+7 | - | 15/07/1994 |
| 0121 359 | Allocated | BT | 3+7 | - | 15/07/1994 |
| 0121 360 | Allocated | BT | 3+7 | - | 15/07/1994 |
| 0121 361 | Allocated | Telecom2 Ltd | 3+7 | F-Digit '6' | 11/09/2009 |
| 0121 362 | Allocated | BT | 3+7 | - | 15/07/1994 |
| 0121 363 | Allocated | Citrus Telecommunications Ltd | 3+7 | - | 11/01/2005 |
| 0121 364 | Allocated | Vodafone Ltd (C&W) | 3+7 | F-Digits '0,1,2,3,4,5,6,7,8,9' | 22/02/2010 |
| 0121 365 | Allocated | Pulsant (Scotland) Limited | 3+7 | - | 17/02/2009 |
| 0121 366 | Allocated | BT | 3+7 | - | 15/07/1994 |
| 0121 367 | Allocated | Invomo Ltd | 3+7 | F-Digit '2' | 30/09/2008 |
| 0121 368 | Allocated | Voxbone SA | 3+7 | F-Digit '8' | 25/10/2007 |
| 0121 369 | Allocated | TTNC Limited | 3+7 | F-Digits '0,1,2,3,4,5,6,7,8,9' | 29/11/2005 |
| 0121 370 | Allocated | Advanced Voip Solutions Ltd | 3+7 | F-Digit '0' | 10/06/2013 |
| 0121 371 | Allocated | Vodafone Ltd (C&W) | 3+7 | F-Digits '0,1,2,3,4,5,6,7,8,9' | 04/02/2010 |
| 0121 372 | Allocated | 3C Limited | 3+7 | F-Digit '2' | 09/09/2008 |
| 0121 373 | Allocated | BT | 3+7 | - | 15/07/1994 |
| 0121 374 | Allocated | Telappliant Ltd | 3+7 | F-Digit '2' | 03/02/2009 |
| 0121 375 | Allocated | Tuxtel Ltd | 3+7 | F-Digit '7' | 05/11/2009 |
| 0121 376 | Allocated | TeleWare PLC | 3+7 | F-Digit '3' | 04/02/2009 |
| 0121 377 | Allocated | BT | 3+7 | - | 15/07/1994 |
| 0121 378 | Allocated | BT | 3+7 | - | 15/07/1994 |
| 0121 379 | Allocated | Excell Group Plc | 3+7 | F-Digit '8' | 10/11/2008 |
| 0121 380 | Allocated | BT | 3+7 | - | 15/07/1994 |
| 0121 381 | Allocated | Nodemax Limited | 3+7 | F-Digit '0' | 21/05/2008 |
| 0121 382 | Allocated | BT | 3+7 | - | 15/07/1994 |
| 0121 383 | Allocated | Plus Telecom Limited | 3+7 | - | 26/01/2006 |
| 0121 384 | Allocated | BT | 3+7 | - | 15/07/1994 |
| 0121 385 | Allocated | Keycom plc | 3+7 | F-Digit '0' | 20/02/2009 |
| 0121 386 | Allocated | BT | 3+7 | - | 15/07/1994 |
| 0121 387 | Allocated | Orbis Telecom | 3+7 | F-Digit '0' | 15/10/2007 |
| 0121 388 | Allocated | Nexus Telecommunications Limited | 3+7 | - | 16/05/2005 |
| 01213 89 | Free | - | 3+7 | - | - |
| 0121 390 | Allocated | TelecomIQ Limited | 3+7 | F-Digit '0' | 20/08/2013 |
| 0121 391 | Allocated | IP Phone Solutions Ltd | 3+7 | F-Digit '0' | 18/10/2013 |
| 0121 392 | Allocated | Magrathea Telecommunications Limited | 3+7 | F-Digit '8' | 21/10/2013 |
| 0121 393 | Allocated | COLT Technology Services | 3+7 | F-Digit '3' | 25/09/2013 |
| 0121 394 | Allocated | Fluency Communications Ltd | 3+7 | F-Digit '1' | 07/10/2013 |
| 0121 395 | Allocated | BT | 3+7 | F-Digits '0,1,2,3,4,5,6,7,8,9' | 28/11/2013 |
| 0121 396 | Allocated | Radius Communications Limited | 3+7 | F-Digit '0' | 07/01/2014 |
| 0121 397 | Allocated | Hannon Telecom Voice | 3+7 | F-Digit '9' | 22/01/2014 |
| 0121 398 | Allocated | Syntec Limited | 3+7 | F-Digit '2' | 11/02/2014 |
| 0121 399 | Allocated | iHub UK Ltd | 3+7 | - | 14/08/2013 |