This page contains information about which telephone companies the various 02304 numbers are allocated to.
| First Digits | Status | Number Length |
|---|---|---|
| 023 0400 | Free for National Dialling Only | (0)+10 |
| 023 0401 | Free for National Dialling Only | (0)+10 |
| 023 0402 | Free for National Dialling Only | (0)+10 |
| 023 0403 | Free for National Dialling Only | (0)+10 |
| 023 0404 | Free for National Dialling Only | (0)+10 |
| 023 0405 | Free for National Dialling Only | (0)+10 |
| 023 0406 | Free for National Dialling Only | (0)+10 |
| 023 0407 | Free for National Dialling Only | (0)+10 |
| 023 0408 | Free for National Dialling Only | (0)+10 |
| 023 0409 | Free for National Dialling Only | (0)+10 |
| 023 0410 | Free for National Dialling Only | (0)+10 |
| 023 0411 | Free for National Dialling Only | (0)+10 |
| 023 0412 | Free for National Dialling Only | (0)+10 |
| 023 0413 | Free for National Dialling Only | (0)+10 |
| 023 0414 | Free for National Dialling Only | (0)+10 |
| 023 0415 | Free for National Dialling Only | (0)+10 |
| 023 0416 | Free for National Dialling Only | (0)+10 |
| 023 0417 | Free for National Dialling Only | (0)+10 |
| 023 0418 | Free for National Dialling Only | (0)+10 |
| 023 0419 | Free for National Dialling Only | (0)+10 |
| 023 0420 | Free for National Dialling Only | (0)+10 |
| 023 0421 | Free for National Dialling Only | (0)+10 |
| 023 0422 | Free for National Dialling Only | (0)+10 |
| 023 0423 | Free for National Dialling Only | (0)+10 |
| 023 0424 | Free for National Dialling Only | (0)+10 |
| 023 0425 | Free for National Dialling Only | (0)+10 |
| 023 0426 | Free for National Dialling Only | (0)+10 |
| 023 0427 | Free for National Dialling Only | (0)+10 |
| 023 0428 | Free for National Dialling Only | (0)+10 |
| 023 0429 | Free for National Dialling Only | (0)+10 |
| 023 0430 | Free for National Dialling Only | (0)+10 |
| 023 0431 | Free for National Dialling Only | (0)+10 |
| 023 0432 | Free for National Dialling Only | (0)+10 |
| 023 0433 | Free for National Dialling Only | (0)+10 |
| 023 0434 | Free for National Dialling Only | (0)+10 |
| 023 0435 | Free for National Dialling Only | (0)+10 |
| 023 0436 | Free for National Dialling Only | (0)+10 |
| 023 0437 | Free for National Dialling Only | (0)+10 |
| 023 0438 | Free for National Dialling Only | (0)+10 |
| 023 0439 | Free for National Dialling Only | (0)+10 |
| 023 0440 | Free for National Dialling Only | (0)+10 |
| 023 0441 | Free for National Dialling Only | (0)+10 |
| 023 0442 | Free for National Dialling Only | (0)+10 |
| 023 0443 | Free for National Dialling Only | (0)+10 |
| 023 0444 | Free for National Dialling Only | (0)+10 |
| 023 0445 | Free for National Dialling Only | (0)+10 |
| 023 0446 | Free for National Dialling Only | (0)+10 |
| 023 0447 | Free for National Dialling Only | (0)+10 |
| 023 0448 | Free for National Dialling Only | (0)+10 |
| 023 0449 | Free for National Dialling Only | (0)+10 |
| 023 0450 | Free for National Dialling Only | (0)+10 |
| 023 0451 | Free for National Dialling Only | (0)+10 |
| 023 0452 | Free for National Dialling Only | (0)+10 |
| 023 0453 | Free for National Dialling Only | (0)+10 |
| 023 0454 | Free for National Dialling Only | (0)+10 |
| 023 0455 | Free for National Dialling Only | (0)+10 |
| 023 0456 | Free for National Dialling Only | (0)+10 |
| 023 0457 | Free for National Dialling Only | (0)+10 |
| 023 0458 | Free for National Dialling Only | (0)+10 |
| 023 0459 | Free for National Dialling Only | (0)+10 |
| 023 0460 | Free for National Dialling Only | (0)+10 |
| 023 0461 | Free for National Dialling Only | (0)+10 |
| 023 0462 | Free for National Dialling Only | (0)+10 |
| 023 0463 | Free for National Dialling Only | (0)+10 |
| 023 0464 | Free for National Dialling Only | (0)+10 |
| 023 0465 | Free for National Dialling Only | (0)+10 |
| 023 0466 | Free for National Dialling Only | (0)+10 |
| 023 0467 | Free for National Dialling Only | (0)+10 |
| 023 0468 | Free for National Dialling Only | (0)+10 |
| 023 0469 | Free for National Dialling Only | (0)+10 |
| 023 0470 | Free for National Dialling Only | (0)+10 |
| 023 0471 | Free for National Dialling Only | (0)+10 |
| 023 0472 | Free for National Dialling Only | (0)+10 |
| 023 0473 | Free for National Dialling Only | (0)+10 |
| 023 0474 | Free for National Dialling Only | (0)+10 |
| 023 0475 | Free for National Dialling Only | (0)+10 |
| 023 0476 | Free for National Dialling Only | (0)+10 |
| 023 0477 | Free for National Dialling Only | (0)+10 |
| 023 0478 | Free for National Dialling Only | (0)+10 |
| 023 0479 | Free for National Dialling Only | (0)+10 |
| 023 0480 | Free for National Dialling Only | (0)+10 |
| 023 0481 | Free for National Dialling Only | (0)+10 |
| 023 0482 | Free for National Dialling Only | (0)+10 |
| 023 0483 | Free for National Dialling Only | (0)+10 |
| 023 0484 | Free for National Dialling Only | (0)+10 |
| 023 0485 | Free for National Dialling Only | (0)+10 |
| 023 0486 | Free for National Dialling Only | (0)+10 |
| 023 0487 | Free for National Dialling Only | (0)+10 |
| 023 0488 | Free for National Dialling Only | (0)+10 |
| 023 0489 | Free for National Dialling Only | (0)+10 |
| 023 0490 | Free for National Dialling Only | (0)+10 |
| 023 0491 | Free for National Dialling Only | (0)+10 |
| 023 0492 | Free for National Dialling Only | (0)+10 |
| 023 0493 | Free for National Dialling Only | (0)+10 |
| 023 0494 | Free for National Dialling Only | (0)+10 |
| 023 0495 | Free for National Dialling Only | (0)+10 |
| 023 0496 | Free for National Dialling Only | (0)+10 |
| 023 0497 | Free for National Dialling Only | (0)+10 |
| 023 0498 | Free for National Dialling Only | (0)+10 |
| 023 0499 | Free for National Dialling Only | (0)+10 |