This page contains information about which telephone companies the various 01375 numbers are allocated to.
| First Digits | Status | Communications Provider | Number Length | Notes | Change |
|---|---|---|---|---|---|
| 01375 00 | Free for National Dialling Only | - | (0)+10 | - | - |
| 01375 01 | Free for National Dialling Only | - | (0)+10 | - | - |
| 01375 02 | Free for National Dialling Only | - | (0)+10 | - | - |
| 01375 03 | Free for National Dialling Only | - | (0)+10 | - | - |
| 01375 04 | Free for National Dialling Only | - | (0)+10 | - | - |
| 01375 05 | Free for National Dialling Only | - | (0)+10 | - | - |
| 01375 06 | Free for National Dialling Only | - | (0)+10 | - | - |
| 01375 07 | Free for National Dialling Only | - | (0)+10 | - | - |
| 01375 08 | Free for National Dialling Only | - | (0)+10 | - | - |
| 01375 09 | Free for National Dialling Only | - | (0)+10 | - | - |
| 01375 10 | Free for National Dialling Only | - | (0)+10 | - | - |
| 01375 11 | Free for National Dialling Only | - | (0)+10 | - | - |
| 01375 12 | Free for National Dialling Only | - | (0)+10 | - | - |
| 01375 13 | Free for National Dialling Only | - | (0)+10 | - | - |
| 01375 14 | Free for National Dialling Only | - | (0)+10 | - | - |
| 01375 15 | Free for National Dialling Only | - | (0)+10 | - | - |
| 01375 16 | Free for National Dialling Only | - | (0)+10 | - | - |
| 01375 17 | Free for National Dialling Only | - | (0)+10 | - | - |
| 01375 18 | Free for National Dialling Only | - | (0)+10 | - | - |
| 01375 19 | Free for National Dialling Only | - | (0)+10 | - | - |
| 01375 20 | Allocated | Starcomm Ltd | 4+6 | F-Digit '0' | 23/05/2007 |
| 01375 21 | Allocated | Frontier Systems Ltd | 4+6 | F-Digit '3' | 24/07/2007 |
| 01375 22 | Allocated | Teledesign Ltd | 4+6 | F-Digit '2' | 06/09/2007 |
| 01375 23 | Allocated | (aq) Limited trading as aql | 4+6 | F-Digit '0' | 03/10/2007 |
| 01375 24 | Allocated | VoIP-Un Limited | 4+6 | F-Digit '0' | 29/10/2007 |
| 01375 250 | Allocated | Nodemax Limited | 4+6 | - | 17/07/2008 |
| 01375 251 | Allocated | TalkTalk Communications Limited | 4+6 | - | 25/07/2008 |
| 01375 252 | Allocated | 3C Limited | 4+6 | - | 11/09/2008 |
| 01375 253 | Allocated | Solutios Limited | 4+6 | - | 06/10/2008 |
| 01375 254 | Allocated | Premium O Limited | 4+6 | - | 08/01/2009 |
| 01375 255 | Allocated | Net-Work Internet Ltd | 4+6 | - | 23/06/2008 |
| 01375 256 | Allocated | Telecom2 Ltd | 4+6 | - | 10/09/2009 |
| 01375 257 | Allocated | IPV6 Limited | 4+6 | - | 04/02/2009 |
| 01375 258 | Allocated | Voxbone SA | 4+6 | - | 19/09/2008 |
| 01375 259 | Allocated | Mars Communications Limited | 4+6 | - | 06/02/2009 |
| 01375 260 | Allocated | Andrews & Arnold (Numbers) Ltd | 4+6 | - | 04/03/2009 |
| 01375 261 | Allocated | Telecoms World Plc | 4+6 | - | 12/03/2009 |
| 01375 262 | Allocated | X-Pilot Limited | 4+6 | - | 16/06/2009 |
| 01375 263 | Allocated | Mundio Mobile Limited | 4+6 | - | 30/06/2009 |
| 01375 264 | Allocated | TeleWare PLC | 4+6 | - | 25/09/2009 |
| 01375 265 | Allocated | Affiniti Integrated Solutions Ltd | 4+6 | - | 31/07/2009 |
| 01375 266 | Allocated | CFL Communications Limited | 4+6 | - | 09/07/2009 |
| 01375 267 | Allocated | iNet Telecoms Ltd (Voipfone) | 4+6 | - | 06/08/2009 |
| 01375 268 | Allocated | Known Communications Limited | 4+6 | - | 17/09/2009 |
| 01375 269 | Allocated | Nexus Telecommunications Limited | 4+6 | - | 28/09/2009 |
| 01375 270 | Allocated | Invomo Ltd | 4+6 | - | 04/12/2009 |
| 01375 271 | Allocated | Buzz Networks Limited | 4+6 | - | 01/03/2010 |
| 01375 272 | Allocated | i-Net Communications Group Plc | 4+6 | - | 15/01/2010 |
| 01375 273 | Allocated | Atomstream Limited | 4+6 | - | 22/03/2010 |
| 01375 274 | Allocated | Digitech Solutions Global Limited | 4+6 | - | 28/04/2010 |
| 01375 275 | Allocated | Telappliant Ltd | 4+6 | - | 01/06/2010 |
| 01375 276 | Allocated | Calltracks Limited | 4+6 | - | 08/07/2010 |
| 01375 277 | Allocated | Suretec Systems Ltd | 4+6 | - | 05/05/2010 |
| 01375 278 | Allocated | Windsor Telecom Plc | 4+6 | - | 20/07/2010 |
| 01375 279 | Allocated | Numbergroup Network Ltd | 4+6 | - | 15/11/2010 |
| 01375 28 | Allocated | Timico Limited | 4+6 | F-Digit '8' | 30/11/2007 |
| 01375 290 | Allocated | Telephone Box Limited | 4+6 | - | 25/11/2010 |
| 01375 291 | Allocated | Cheers International Sales Limited | 4+6 | - | 13/12/2010 |
| 01375 292 | Allocated | Phone Co-Op Numbering Limited | 4+6 | - | 21/12/2010 |
| 01375 293 | Allocated | Invosys Limited | 4+6 | - | 18/01/2011 |
| 01375 294 | Allocated | Nexbridge Communications Limited | 4+6 | - | 16/03/2011 |
| 01375 295 | Allocated | IP Base Ltd | 4+6 | - | 21/01/2011 |
| 01375 296 | Allocated | Tesla Dynamic Ltd | 4+6 | - | 08/07/2011 |
| 01375 297 | Allocated | Orbtalk Limited | 4+6 | - | 15/09/2011 |
| 01375 298 | Allocated | Barritec Limited | 4+6 | - | 20/09/2011 |
| 01375 299 | Allocated | Globecom International Limited | 4+6 | - | 29/12/2010 |
| 01375 30 | Allocated | Vodafone Ltd (C&W) | 4+6 | - | 11/02/2010 |
| 01375 310 | Allocated | Linear Telecoms Limited | 4+6 | - | 08/10/2010 |
| 01375 311 | Allocated | Invoco Ltd | 4+6 | - | 21/09/2011 |
| 01375 312 | Allocated | COLT Technology Services | 4+6 | - | 21/10/2011 |
| 01375 313 | Allocated | Internexus Networks Limited | 4+6 | - | 21/11/2011 |
| 01375 314 | Allocated | Bicom Systems EURL | 4+6 | - | 02/03/2012 |
| 01375 315 | Allocated | Broadcast Telecom Ltd | 4+6 | - | 21/02/2012 |
| 01375 316 | Allocated | API Telecom Limited | 4+6 | - | 27/03/2012 |
| 01375 317 | Allocated | ICC Networks Ltd | 4+6 | - | 13/04/2012 |
| 01375 318 | Allocated | IOVOX Limited | 4+6 | - | 04/07/2012 |
| 01375 319 | Allocated | Ziron (UK) Ltd | 4+6 | - | 30/07/2012 |
| 01375 32 | Allocated | Easynet Enterprise Services Limited | 4+6 | - | 07/03/2005 |
| 01375 330 | Allocated | Level 3 Communications UK Limited | 4+6 | - | 09/09/1999 |
| 01375 331 | Protected | - | 4+6 | - | - |
| 01375 332 | Protected | - | 4+6 | - | - |
| 01375 333 | Allocated | Level 3 Communications UK Limited | 4+6 | - | 09/09/1999 |
| 01375 334 | Protected | - | 4+6 | - | - |
| 01375 335 | Allocated | Level 3 Communications UK Limited | 4+6 | - | 09/09/1999 |
| 01375 336 | Protected | - | 4+6 | - | - |
| 01375 337 | Protected | - | 4+6 | - | - |
| 01375 338 | Protected | - | 4+6 | - | - |
| 01375 339 | Allocated | Level 3 Communications UK Limited | 4+6 | - | 09/09/1999 |
| 01375 340 | Allocated | Inclarity Communications Ltd | 4+6 | - | 02/12/2004 |
| 01375 341 | Allocated | Inclarity Communications Ltd | 4+6 | - | 02/12/2004 |
| 01375 342 | Allocated | Inclarity Communications Ltd | 4+6 | - | 02/12/2004 |
| 01375 343 | Protected | - | 4+6 | - | - |
| 01375 344 | Protected | - | 4+6 | - | - |
| 01375 345 | Allocated | Inclarity Communications Ltd | 4+6 | - | 02/12/2004 |
| 01375 346 | Protected | - | 4+6 | - | - |
| 01375 347 | Protected | - | 4+6 | - | - |
| 01375 348 | Protected | - | 4+6 | - | - |
| 01375 349 | Protected | - | 4+6 | - | - |
| 01375 35 | Allocated | Telephony Services Limited | 4+6 | - | 01/11/2004 |
| 01375 36 | Allocated | BT | 4+6 | - | 15/07/1994 |
| 01375 37 | Allocated | BT | 4+6 | - | 15/07/1994 |
| 01375 38 | Allocated | BT | 4+6 | - | 15/07/1994 |
| 01375 39 | Allocated | BT | 4+6 | - | 15/07/1994 |
| 01375 40 | Allocated | Virgin Media Wholesale Limited | 4+6 | - | 29/10/2009 |
| 01375 41 | Allocated | Virgin Media Wholesale Limited | 4+6 | - | 29/10/2009 |
| 01375 42 | Allocated | Virgin Media Wholesale Limited | 4+6 | - | 29/10/2009 |
| 01375 430 | Allocated | VoiceHost Limited | 4+6 | - | 22/06/2010 |
| 01375 431 | Protected | - | 4+6 | - | - |
| 01375 432 | Protected | - | 4+6 | - | - |
| 01375 433 | Protected | - | 4+6 | - | - |
| 01375 434 | Protected | - | 4+6 | - | - |
| 01375 435 | Protected | - | 4+6 | - | - |
| 01375 436 | Protected | - | 4+6 | - | - |
| 01375 437 | Protected | - | 4+6 | - | - |
| 01375 438 | Protected | - | 4+6 | - | - |
| 01375 439 | Protected | - | 4+6 | - | - |
| 01375 44 | Allocated | Edge Telecom Limited | 4+6 | - | 04/05/2004 |
| 01375 45 | Allocated | Vodafone Ltd (Thus) | 4+6 | - | 05/10/1999 |
| 01375 46 | Allocated | British Sky Broadcasting Limited | 4+6 | F-Digit '0,1,2,3' | 16/05/2006 |
| 01375 470 | Protected | - | 4+6 | - | - |
| 01375 471 | Protected | - | 4+6 | - | - |
| 01375 472 | Protected | - | 4+6 | - | - |
| 01375 473 | Protected | - | 4+6 | - | - |
| 01375 474 | Protected | - | 4+6 | - | - |
| 01375 475 | Protected | - | 4+6 | - | - |
| 01375 476 | Protected | - | 4+6 | - | - |
| 01375 477 | Protected | - | 4+6 | - | - |
| 01375 478 | Protected | - | 4+6 | - | - |
| 01375 479 | Protected | - | 4+6 | - | - |
| 01375 48 | Allocated | BT | 4+6 | - | 15/07/1994 |
| 01375 49 | Allocated | Danemere Street Creative | 4+6 | F-Digit '2' | 28/06/2006 |
| 01375 500 | Allocated | We Love Communications Limited | 4+6 | - | 08/08/2012 |
| 01375 501 | Allocated | Magnetic North Software Limited | 4+6 | - | 19/02/2013 |
| 01375 502 | Allocated | Hello Telecom (UK) PLC | 4+6 | - | 21/12/2012 |
| 01375 503 | Allocated | Simwood eSMS Limited | 4+6 | - | 05/04/2013 |
| 01375 504 | Allocated | Minotaur Telecom Limited | 4+6 | - | 18/12/2012 |
| 01375 505 | Allocated | Content Guru Ltd | 4+6 | - | 12/10/2012 |
| 01375 506 | Allocated | Kalnet4u Ltd | 4+6 | - | 16/05/2013 |
| 01375 507 | Allocated | iHub UK Ltd | 4+6 | - | 14/08/2013 |
| 01375 508 | Allocated | TalkTalk Communications Limited | 4+6 | - | 19/02/2013 |
| 01375 509 | Allocated | XoverX Ltd | 4+6 | - | 30/04/2013 |
| 01375 510 | Allocated | Radius Communications Limited | 4+6 | - | 07/01/2014 |
| 01375 511 | Allocated | BT | 4+6 | - | 19/06/2014 |
| 01375 512 | Allocated | Virgin Media Wholesale Limited | 4+6 | - | 16/09/2014 |
| 01375 513 | Free | - | 4+6 | - | - |
| 01375 514 | Free | - | 4+6 | - | - |
| 01375 515 | Free | - | 4+6 | - | - |
| 01375 516 | Free | - | 4+6 | - | - |
| 01375 517 | Free | - | 4+6 | - | - |
| 01375 518 | Free | - | 4+6 | - | - |
| 01375 519 | Free | - | 4+6 | - | - |
| 01375 520 | Protected | - | 4+6 | - | - |
| 01375 521 | Protected | - | 4+6 | - | - |
| 01375 522 | Protected | - | 4+6 | - | - |
| 01375 523 | Protected | - | 4+6 | - | - |
| 01375 524 | Protected | - | 4+6 | - | - |
| 01375 525 | Protected | - | 4+6 | - | - |
| 01375 526 | Protected | - | 4+6 | - | - |
| 01375 527 | Protected | - | 4+6 | - | - |
| 01375 528 | Protected | - | 4+6 | - | - |
| 01375 529 | Protected | - | 4+6 | - | - |
| 01375 530 | Protected | - | 4+6 | - | - |
| 01375 531 | Protected | - | 4+6 | - | - |
| 01375 532 | Protected | - | 4+6 | - | - |
| 01375 533 | Protected | - | 4+6 | - | - |
| 01375 534 | Protected | - | 4+6 | - | - |
| 01375 535 | Protected | - | 4+6 | - | - |
| 01375 536 | Protected | - | 4+6 | - | - |
| 01375 537 | Protected | - | 4+6 | - | - |
| 01375 538 | Protected | - | 4+6 | - | - |
| 01375 539 | Protected | - | 4+6 | - | - |
| 01375 540 | Protected | - | 4+6 | - | - |
| 01375 541 | Protected | - | 4+6 | - | - |
| 01375 542 | Protected | - | 4+6 | - | - |
| 01375 543 | Protected | - | 4+6 | - | - |
| 01375 544 | Protected | - | 4+6 | - | - |
| 01375 545 | Protected | - | 4+6 | - | - |
| 01375 546 | Protected | - | 4+6 | - | - |
| 01375 547 | Protected | - | 4+6 | - | - |
| 01375 548 | Protected | - | 4+6 | - | - |
| 01375 549 | Protected | - | 4+6 | - | - |
| 01375 550 | Protected | - | 4+6 | - | - |
| 01375 551 | Protected | - | 4+6 | - | - |
| 01375 552 | Protected | - | 4+6 | - | - |
| 01375 553 | Protected | - | 4+6 | - | - |
| 01375 554 | Protected | - | 4+6 | - | - |
| 01375 555 | Protected | - | 4+6 | - | - |
| 01375 556 | Protected | - | 4+6 | - | - |
| 01375 557 | Protected | - | 4+6 | - | - |
| 01375 558 | Protected | - | 4+6 | - | - |
| 01375 559 | Protected | - | 4+6 | - | - |
| 01375 560 | Protected | - | 4+6 | - | - |
| 01375 561 | Protected | - | 4+6 | - | - |
| 01375 562 | Protected | - | 4+6 | - | - |
| 01375 563 | Protected | - | 4+6 | - | - |
| 01375 564 | Protected | - | 4+6 | - | - |
| 01375 565 | Protected | - | 4+6 | - | - |
| 01375 566 | Protected | - | 4+6 | - | - |
| 01375 567 | Protected | - | 4+6 | - | - |
| 01375 568 | Protected | - | 4+6 | - | - |
| 01375 569 | Protected | - | 4+6 | - | - |
| 01375 570 | Protected | - | 4+6 | - | - |
| 01375 571 | Protected | - | 4+6 | - | - |
| 01375 572 | Protected | - | 4+6 | - | - |
| 01375 573 | Protected | - | 4+6 | - | - |
| 01375 574 | Protected | - | 4+6 | - | - |
| 01375 575 | Protected | - | 4+6 | - | - |
| 01375 576 | Protected | - | 4+6 | - | - |
| 01375 577 | Protected | - | 4+6 | - | - |
| 01375 578 | Protected | - | 4+6 | - | - |
| 01375 579 | Protected | - | 4+6 | - | - |
| 01375 580 | Protected | - | 4+6 | - | - |
| 01375 581 | Protected | - | 4+6 | - | - |
| 01375 582 | Protected | - | 4+6 | - | - |
| 01375 583 | Protected | - | 4+6 | - | - |
| 01375 584 | Protected | - | 4+6 | - | - |
| 01375 585 | Protected | - | 4+6 | - | - |
| 01375 586 | Protected | - | 4+6 | - | - |
| 01375 587 | Protected | - | 4+6 | - | - |
| 01375 588 | Protected | - | 4+6 | - | - |
| 01375 589 | Protected | - | 4+6 | - | - |
| 01375 590 | Protected | - | 4+6 | - | - |
| 01375 591 | Protected | - | 4+6 | - | - |
| 01375 592 | Protected | - | 4+6 | - | - |
| 01375 593 | Protected | - | 4+6 | - | - |
| 01375 594 | Protected | - | 4+6 | - | - |
| 01375 595 | Protected | - | 4+6 | - | - |
| 01375 596 | Protected | - | 4+6 | - | - |
| 01375 597 | Protected | - | 4+6 | - | - |
| 01375 598 | Protected | - | 4+6 | - | - |
| 01375 599 | Protected | - | 4+6 | - | - |
| 01375 60 | Allocated | Nationwide Telephone Assistance Ltd | 4+6 | - | 02/09/2005 |
| 01375 610 | Allocated | Vodafone Ltd (C&W) | 4+6 | - | 19/04/2010 |
| 01375 611 | Allocated | Vodafone Ltd (C&W) | 4+6 | - | 19/04/2010 |
| 01375 612 | Allocated | Vodafone Ltd (C&W) | 4+6 | - | 19/04/2010 |
| 01375 613 | Allocated | Vodafone Ltd (C&W) | 4+6 | - | 19/04/2010 |
| 01375 614 | Allocated | Vodafone Ltd (C&W) | 4+6 | - | 19/04/2010 |
| 01375 615 | Allocated | Vodafone Ltd (C&W) | 4+6 | - | 19/04/2010 |
| 01375 616 | Allocated | Vodafone Ltd (C&W) | 4+6 | - | 19/04/2010 |
| 01375 617 | Protected | - | 4+6 | - | - |
| 01375 618 | Protected | - | 4+6 | - | - |
| 01375 619 | Protected | - | 4+6 | - | - |
| 01375 62 | Allocated | Syntec Limited | 4+6 | - | 16/11/2005 |
| 01375 630 | Protected | - | 4+6 | - | - |
| 01375 631 | Protected | - | 4+6 | - | - |
| 01375 632 | Protected | - | 4+6 | - | - |
| 01375 633 | Protected | - | 4+6 | - | - |
| 01375 634 | Protected | - | 4+6 | - | - |
| 01375 635 | Protected | - | 4+6 | - | - |
| 01375 636 | Protected | - | 4+6 | - | - |
| 01375 637 | Protected | - | 4+6 | - | - |
| 01375 638 | Protected | - | 4+6 | - | - |
| 01375 639 | Protected | - | 4+6 | - | - |
| 01375 64 | Allocated | BT | 4+6 | - | 15/07/1994 |
| 01375 65 | Allocated | BT | 4+6 | - | 15/07/1994 |
| 01375 66 | Allocated | BT | 4+6 | - | 23/12/1997 |
| 01375 67 | Allocated | BT | 4+6 | - | 15/07/1994 |
| 01375 68 | Allocated | FleXtel Limited | 4+6 | - | 20/10/2005 |
| 01375 69 | Allocated | Syntec Limited | 4+6 | - | 06/12/2005 |
| 01375 700 | Protected | - | 4+6 | - | - |
| 01375 701 | Protected | - | 4+6 | - | - |
| 01375 702 | Protected | - | 4+6 | - | - |
| 01375 703 | Protected | - | 4+6 | - | - |
| 01375 704 | Protected | - | 4+6 | - | - |
| 01375 705 | Protected | - | 4+6 | - | - |
| 01375 706 | Protected | - | 4+6 | - | - |
| 01375 707 | Protected | - | 4+6 | - | - |
| 01375 708 | Protected | - | 4+6 | - | - |
| 01375 709 | Protected | - | 4+6 | - | - |
| 01375 71 | Allocated | Served Up Limited. | 4+6 | F-Digit '1' | 19/05/2008 |
| 01375 72 | Allocated | TTNC Limited | 4+6 | - | 24/08/2006 |
| 01375 73 | Allocated | TelNG Limited | 4+6 | F-Digit '2' | 27/02/2007 |
| 01375 74 | Allocated | Localphone Limited | 4+6 | F-Digit '0' | 03/05/2007 |
| 01375 75 | Allocated | Virgin Media Wholesale Limited | 4+6 | - | 29/10/2009 |
| 01375 760 | Protected | - | 4+6 | - | - |
| 01375 761 | Protected | - | 4+6 | - | - |
| 01375 762 | Protected | - | 4+6 | - | - |
| 01375 763 | Protected | - | 4+6 | - | - |
| 01375 764 | Protected | - | 4+6 | - | - |
| 01375 765 | Protected | - | 4+6 | - | - |
| 01375 766 | Protected | - | 4+6 | - | - |
| 01375 767 | Allocated | TalkTalk Communications Limited | 4+6 | - | 19/01/2012 |
| 01375 768 | Allocated | TalkTalk Communications Limited | 4+6 | - | 19/01/2012 |
| 01375 769 | Allocated | TalkTalk Communications Limited | 4+6 | - | 19/01/2012 |
| 01375 77 | Allocated | Net Solutions Europe Limited | 4+6 | F-Digit '7' | 13/04/2006 |
| 01375 780 | Protected | - | 4+6 | - | - |
| 01375 781 | Protected | - | 4+6 | - | - |
| 01375 782 | Protected | - | 4+6 | - | - |
| 01375 783 | Protected | - | 4+6 | - | - |
| 01375 784 | Protected | - | 4+6 | - | - |
| 01375 785 | Protected | - | 4+6 | - | - |
| 01375 786 | Protected | - | 4+6 | - | - |
| 01375 787 | Allocated | Spitfire Network Services Ltd | 4+6 | - | 10/11/2011 |
| 01375 788 | Protected | - | 4+6 | - | - |
| 01375 789 | Protected | - | 4+6 | - | - |
| 01375 79 | Allocated | InTechnology Plc | 4+6 | F-Digit '2' | 07/06/2007 |
| 01375 80 | Allocated | Gamma Telecom Holdings Ltd | 4+6 | - | 08/03/2005 |
| 01375 81 | Allocated | BT | 4+6 | - | 15/07/1994 |
| 01375 82 | Allocated | Citrus Telecommunications Ltd | 4+6 | - | 09/08/2005 |
| 01375 830 | Protected | - | 4+6 | - | - |
| 01375 831 | Protected | - | 4+6 | - | - |
| 01375 832 | Protected | - | 4+6 | - | - |
| 01375 833 | Protected | - | 4+6 | - | - |
| 01375 834 | Protected | - | 4+6 | - | - |
| 01375 835 | Protected | - | 4+6 | - | - |
| 01375 836 | Protected | - | 4+6 | - | - |
| 01375 837 | Protected | - | 4+6 | - | - |
| 01375 838 | Protected | - | 4+6 | - | - |
| 01375 839 | Protected | - | 4+6 | - | - |
| 01375 84 | Allocated | BT | 4+6 | - | 15/07/1994 |
| 01375 85 | Allocated | BT | 4+6 | - | 15/07/1994 |
| 01375 86 | Allocated | Barritel Limited | 4+6 | - | 02/11/2006 |
| 01375 870 | Protected | - | 4+6 | - | - |
| 01375 871 | Protected | - | 4+6 | - | - |
| 01375 872 | Protected | - | 4+6 | - | - |
| 01375 873 | Protected | - | 4+6 | - | - |
| 01375 874 | Allocated | Six Degrees Unified Comms Limited | 4+6 | - | 11/05/2005 |
| 01375 875 | Protected | - | 4+6 | - | - |
| 01375 876 | Protected | - | 4+6 | - | - |
| 01375 877 | Protected | - | 4+6 | - | - |
| 01375 878 | Protected | - | 4+6 | - | - |
| 01375 879 | Protected | - | 4+6 | - | - |
| 01375 88 | Allocated | Magrathea Telecommunications Limited | 4+6 | - | 24/09/2004 |
| 01375 89 | Allocated | BT | 4+6 | - | 15/07/1994 |
| 01375 900 | Protected | - | 4+6 | - | - |
| 01375 901 | Protected | - | 4+6 | - | - |
| 01375 902 | Protected | - | 4+6 | - | - |
| 01375 903 | Protected | - | 4+6 | - | - |
| 01375 904 | Protected | - | 4+6 | - | - |
| 01375 905 | Protected | - | 4+6 | - | - |
| 01375 906 | Protected | - | 4+6 | - | - |
| 01375 907 | Protected | - | 4+6 | - | - |
| 01375 908 | Protected | - | 4+6 | - | - |
| 01375 909 | Protected | - | 4+6 | - | - |
| 01375 910 | Protected | - | 4+6 | - | - |
| 01375 911 | Protected | - | 4+6 | - | - |
| 01375 912 | Protected | - | 4+6 | - | - |
| 01375 913 | Protected | - | 4+6 | - | - |
| 01375 914 | Protected | - | 4+6 | - | - |
| 01375 915 | Protected | - | 4+6 | - | - |
| 01375 916 | Protected | - | 4+6 | - | - |
| 01375 917 | Protected | - | 4+6 | - | - |
| 01375 918 | Protected | - | 4+6 | - | - |
| 01375 919 | Protected | - | 4+6 | - | - |
| 01375 920 | Protected | - | 4+6 | - | - |
| 01375 921 | Protected | - | 4+6 | - | - |
| 01375 922 | Protected | - | 4+6 | - | - |
| 01375 923 | Protected | - | 4+6 | - | - |
| 01375 924 | Protected | - | 4+6 | - | - |
| 01375 925 | Protected | - | 4+6 | - | - |
| 01375 926 | Protected | - | 4+6 | - | - |
| 01375 927 | Protected | - | 4+6 | - | - |
| 01375 928 | Protected | - | 4+6 | - | - |
| 01375 929 | Protected | - | 4+6 | - | - |
| 01375 930 | Protected | - | 4+6 | - | - |
| 01375 931 | Protected | - | 4+6 | - | - |
| 01375 932 | Protected | - | 4+6 | - | - |
| 01375 933 | Protected | - | 4+6 | - | - |
| 01375 934 | Protected | - | 4+6 | - | - |
| 01375 935 | Protected | - | 4+6 | - | - |
| 01375 936 | Protected | - | 4+6 | - | - |
| 01375 937 | Protected | - | 4+6 | - | - |
| 01375 938 | Protected | - | 4+6 | - | - |
| 01375 939 | Protected | - | 4+6 | - | - |
| 01375 940 | Protected | - | 4+6 | - | - |
| 01375 941 | Protected | - | 4+6 | - | - |
| 01375 942 | Protected | - | 4+6 | - | - |
| 01375 943 | Protected | - | 4+6 | - | - |
| 01375 944 | Protected | - | 4+6 | - | - |
| 01375 945 | Protected | - | 4+6 | - | - |
| 01375 946 | Protected | - | 4+6 | - | - |
| 01375 947 | Protected | - | 4+6 | - | - |
| 01375 948 | Protected | - | 4+6 | - | - |
| 01375 949 | Protected | - | 4+6 | - | - |
| 01375 950 | Protected | - | 4+6 | - | - |
| 01375 951 | Protected | - | 4+6 | - | - |
| 01375 952 | Protected | - | 4+6 | - | - |
| 01375 953 | Protected | - | 4+6 | - | - |
| 01375 954 | Protected | - | 4+6 | - | - |
| 01375 955 | Protected | - | 4+6 | - | - |
| 01375 956 | Protected | - | 4+6 | - | - |
| 01375 957 | Protected | - | 4+6 | - | - |
| 01375 958 | Protected | - | 4+6 | - | - |
| 01375 959 | Protected | - | 4+6 | - | - |
| 01375 960 | Protected | - | 4+6 | - | - |
| 01375 961 | Protected | - | 4+6 | - | - |
| 01375 962 | Protected | - | 4+6 | - | - |
| 01375 963 | Protected | - | 4+6 | - | - |
| 01375 964 | Protected | - | 4+6 | - | - |
| 01375 965 | Protected | - | 4+6 | - | - |
| 01375 966 | Protected | - | 4+6 | - | - |
| 01375 967 | Protected | - | 4+6 | - | - |
| 01375 968 | Protected | - | 4+6 | - | - |
| 01375 969 | Protected | - | 4+6 | - | - |
| 01375 970 | Protected | - | 4+6 | - | - |
| 01375 971 | Protected | - | 4+6 | - | - |
| 01375 972 | Protected | - | 4+6 | - | - |
| 01375 973 | Protected | - | 4+6 | - | - |
| 01375 974 | Protected | - | 4+6 | - | - |
| 01375 975 | Protected | - | 4+6 | - | - |
| 01375 976 | Protected | - | 4+6 | - | - |
| 01375 977 | Protected | - | 4+6 | - | - |
| 01375 978 | Protected | - | 4+6 | - | - |
| 01375 979 | Protected | - | 4+6 | - | - |
| 01375 980 | Protected | - | 4+6 | - | - |
| 01375 981 | Protected | - | 4+6 | - | - |
| 01375 982 | Protected | - | 4+6 | - | - |
| 01375 983 | Protected | - | 4+6 | - | - |
| 01375 984 | Protected | - | 4+6 | - | - |
| 01375 985 | Protected | - | 4+6 | - | - |
| 01375 986 | Protected | - | 4+6 | - | - |
| 01375 987 | Protected | - | 4+6 | - | - |
| 01375 988 | Protected | - | 4+6 | - | - |
| 01375 989 | Protected | - | 4+6 | - | - |
| 01375 99 | Protected | - | N/A | - | - |