This page contains information about which telephone companies the various 03445 numbers are allocated to.
| First Digits | Status | Communications Provider | Change |
|---|---|---|---|
| 0344 500 | Allocated | FleXtel Limited | 04/2007 |
| 0344 501 | Protected | - | - |
| 0344 502 | Allocated | TTNC Limited | 04/2007 |
| 0344 503 | Protected | - | - |
| 0344 504 | Allocated | Core Telecom Limited | 11/2011 |
| 0344 505 | Allocated | Edge Telecom Limited | 09/2007 |
| 0344 506 | Protected | - | - |
| 0344 507 | Allocated | Vodafone Ltd (C&W) | 04/2007 |
| 0344 508 | Protected | - | - |
| 0344 509 | Allocated | Vodafone Ltd (C&W) | 04/2007 |
| 0344 510 | Protected | - | - |
| 0344 511 | Allocated | Syntec Limited | 06/2007 |
| 0344 512 | Protected | - | - |
| 0344 513 | Protected | - | - |
| 0344 514 | Protected | - | - |
| 0344 515 | Allocated | Affiniti Integrated Solutions Ltd | 05/2007 |
| 0344 516 | Protected | - | - |
| 0344 517 | Allocated | Virgin Media Wholesale Limited | 03/2012 |
| 0344 518 | Protected | - | - |
| 0344 519 | Protected | - | - |
| 0344 520 | Allocated | Virgin Media Limited | 03/2012 |
| 0344 521 | Protected | - | - |
| 0344 522 | Allocated | Affiniti Integrated Solutions Ltd | 05/2007 |
| 0344 523 | Protected | - | - |
| 0344 524 | Protected | - | - |
| 0344 525 | Protected | - | - |
| 0344 526 | Allocated | Virgin Media Wholesale Limited | 03/2012 |
| 0344 527 | Allocated | Syntec Limited | 06/2007 |
| 0344 528 | Allocated | Virgin Media Wholesale Limited | 03/2012 |
| 0344 529 | Protected | - | - |
| 0344 530 | Allocated | Syntec Limited | 06/2007 |
| 0344 531 | Allocated | Virgin Media Wholesale Limited | 03/2012 |
| 0344 532 | Protected | - | - |
| 0344 533 | Protected | - | - |
| 0344 534 | Protected | - | - |
| 0344 535 | Allocated | Affiniti Integrated Solutions Ltd | 05/2007 |
| 0344 536 | Protected | - | - |
| 0344 537 | Allocated | Virgin Media Wholesale Limited | 03/2012 |
| 0344 538 | Allocated | Vodafone Ltd (Thus) | 07/2007 |
| 0344 539 | Allocated | Calltracks Limited | 05/2014 |
| 0344 540 | Protected | - | - |
| 0344 541 | Protected | - | - |
| 0344 542 | Allocated | Vodafone Ltd (C&W) | 04/2007 |
| 0344 543 | Allocated | Affiniti Integrated Solutions Ltd | 05/2007 |
| 0344 544 | Allocated | TelXL Ltd | 04/2014 |
| 0344 545 | Allocated | Swiftnet Ltd | 09/2007 |
| 0344 546 | Allocated | Level 3 Communications UK Limited | 04/2007 |
| 0344 547 | Protected | - | - |
| 0344 548 | Allocated | Cheers International Sales Limited | 08/2014 |
| 0344 549 | Allocated | Vodafone Ltd (C&W) | 04/2007 |
| 0344 550 | Protected | - | - |
| 0344 551 | Protected | - | - |
| 0344 552 | Allocated | TalkTalk Communications Limited | 04/2014 |
| 0344 553 | Allocated | InTechnology Plc | 06/2007 |
| 0344 554 | Protected | - | - |
| 0344 555 | Protected | - | - |
| 0344 556 | Allocated | Vodafone Ltd (C&W) | 05/2007 |
| 0344 557 | Allocated | Call Stream Limited | 06/2014 |
| 0344 558 | Allocated | Calltracks Limited | 05/2014 |
| 0344 559 | Protected | - | - |
| 0344 560 | Allocated | Sesui Limited | 09/2014 |
| 0344 561 | Allocated | BT | 07/2008 |
| 0344 562 | Protected | - | - |
| 0344 563 | Protected | - | - |
| 0344 564 | Protected | - | - |
| 0344 565 | Protected | - | - |
| 0344 566 | Protected | - | - |
| 0344 567 | Allocated | Telecoms World Plc | 10/2007 |
| 0344 568 | Protected | - | - |
| 0344 569 | Protected | - | - |
| 0344 570 | Allocated | TalkTalk Communications Limited | 04/2014 |
| 0344 571 | Allocated | Virgin Media Wholesale Limited | 03/2012 |
| 0344 572 | Protected | - | - |
| 0344 573 | Allocated | Call Stream Limited | 06/2014 |
| 0344 574 | Protected | - | - |
| 0344 575 | Protected | - | - |
| 0344 576 | Allocated | TalkTalk Communications Limited | 07/2008 |
| 0344 577 | Allocated | Call Stream Limited | 06/2014 |
| 0344 578 | Protected | - | - |
| 0344 579 | Allocated | Vodafone Ltd (Energis) | 02/2010 |
| 0344 580 | Protected | - | - |
| 0344 581 | Allocated | COLT Technology Services | 04/2007 |
| 0344 582 | Protected | - | - |
| 0344 583 | Allocated | Vodafone Ltd (Thus) | 07/2007 |
| 0344 584 | Protected | - | - |
| 0344 585 | Allocated | FleXtel Limited | 04/2007 |
| 0344 586 | Allocated | FleXtel Limited | 04/2007 |
| 0344 587 | Allocated | FleXtel Limited | 04/2007 |
| 0344 588 | Allocated | FleXtel Limited | 04/2007 |
| 0344 589 | Allocated | FleXtel Limited | 04/2007 |
| 0344 590 | Protected | - | - |
| 0344 591 | Protected | - | - |
| 0344 592 | Protected | - | - |
| 0344 593 | Protected | - | - |
| 0344 594 | Allocated | TalkTalk Communications Limited | 04/2014 |
| 0344 595 | Protected | - | - |
| 0344 596 | Protected | - | - |
| 0344 597 | Protected | - | - |
| 0344 598 | Protected | - | - |
| 0344 599 | Protected | - | - |