This page contains information about which telephone companies the various 02803 numbers are allocated to.
| First Digits | Status | Number Length |
|---|---|---|
| 028 0300 | Free for National Dialling Only | (0)+10 |
| 028 0301 | Free for National Dialling Only | (0)+10 |
| 028 0302 | Free for National Dialling Only | (0)+10 |
| 028 0303 | Free for National Dialling Only | (0)+10 |
| 028 0304 | Free for National Dialling Only | (0)+10 |
| 028 0305 | Free for National Dialling Only | (0)+10 |
| 028 0306 | Free for National Dialling Only | (0)+10 |
| 028 0307 | Free for National Dialling Only | (0)+10 |
| 028 0308 | Free for National Dialling Only | (0)+10 |
| 028 0309 | Free for National Dialling Only | (0)+10 |
| 028 0310 | Free for National Dialling Only | (0)+10 |
| 028 0311 | Free for National Dialling Only | (0)+10 |
| 028 0312 | Free for National Dialling Only | (0)+10 |
| 028 0313 | Free for National Dialling Only | (0)+10 |
| 028 0314 | Free for National Dialling Only | (0)+10 |
| 028 0315 | Free for National Dialling Only | (0)+10 |
| 028 0316 | Free for National Dialling Only | (0)+10 |
| 028 0317 | Free for National Dialling Only | (0)+10 |
| 028 0318 | Free for National Dialling Only | (0)+10 |
| 028 0319 | Free for National Dialling Only | (0)+10 |
| 028 0320 | Free for National Dialling Only | (0)+10 |
| 028 0321 | Free for National Dialling Only | (0)+10 |
| 028 0322 | Free for National Dialling Only | (0)+10 |
| 028 0323 | Free for National Dialling Only | (0)+10 |
| 028 0324 | Free for National Dialling Only | (0)+10 |
| 028 0325 | Free for National Dialling Only | (0)+10 |
| 028 0326 | Free for National Dialling Only | (0)+10 |
| 028 0327 | Free for National Dialling Only | (0)+10 |
| 028 0328 | Free for National Dialling Only | (0)+10 |
| 028 0329 | Free for National Dialling Only | (0)+10 |
| 028 0330 | Free for National Dialling Only | (0)+10 |
| 028 0331 | Free for National Dialling Only | (0)+10 |
| 028 0332 | Free for National Dialling Only | (0)+10 |
| 028 0333 | Free for National Dialling Only | (0)+10 |
| 028 0334 | Free for National Dialling Only | (0)+10 |
| 028 0335 | Free for National Dialling Only | (0)+10 |
| 028 0336 | Free for National Dialling Only | (0)+10 |
| 028 0337 | Free for National Dialling Only | (0)+10 |
| 028 0338 | Free for National Dialling Only | (0)+10 |
| 028 0339 | Free for National Dialling Only | (0)+10 |
| 028 0340 | Free for National Dialling Only | (0)+10 |
| 028 0341 | Free for National Dialling Only | (0)+10 |
| 028 0342 | Free for National Dialling Only | (0)+10 |
| 028 0343 | Free for National Dialling Only | (0)+10 |
| 028 0344 | Free for National Dialling Only | (0)+10 |
| 028 0345 | Free for National Dialling Only | (0)+10 |
| 028 0346 | Free for National Dialling Only | (0)+10 |
| 028 0347 | Free for National Dialling Only | (0)+10 |
| 028 0348 | Free for National Dialling Only | (0)+10 |
| 028 0349 | Free for National Dialling Only | (0)+10 |
| 028 0350 | Free for National Dialling Only | (0)+10 |
| 028 0351 | Free for National Dialling Only | (0)+10 |
| 028 0352 | Free for National Dialling Only | (0)+10 |
| 028 0353 | Free for National Dialling Only | (0)+10 |
| 028 0354 | Free for National Dialling Only | (0)+10 |
| 028 0355 | Free for National Dialling Only | (0)+10 |
| 028 0356 | Free for National Dialling Only | (0)+10 |
| 028 0357 | Free for National Dialling Only | (0)+10 |
| 028 0358 | Free for National Dialling Only | (0)+10 |
| 028 0359 | Free for National Dialling Only | (0)+10 |
| 028 0360 | Free for National Dialling Only | (0)+10 |
| 028 0361 | Free for National Dialling Only | (0)+10 |
| 028 0362 | Free for National Dialling Only | (0)+10 |
| 028 0363 | Free for National Dialling Only | (0)+10 |
| 028 0364 | Free for National Dialling Only | (0)+10 |
| 028 0365 | Free for National Dialling Only | (0)+10 |
| 028 0366 | Free for National Dialling Only | (0)+10 |
| 028 0367 | Free for National Dialling Only | (0)+10 |
| 028 0368 | Free for National Dialling Only | (0)+10 |
| 028 0369 | Free for National Dialling Only | (0)+10 |
| 028 0370 | Free for National Dialling Only | (0)+10 |
| 028 0371 | Free for National Dialling Only | (0)+10 |
| 028 0372 | Free for National Dialling Only | (0)+10 |
| 028 0373 | Free for National Dialling Only | (0)+10 |
| 028 0374 | Free for National Dialling Only | (0)+10 |
| 028 0375 | Free for National Dialling Only | (0)+10 |
| 028 0376 | Free for National Dialling Only | (0)+10 |
| 028 0377 | Free for National Dialling Only | (0)+10 |
| 028 0378 | Free for National Dialling Only | (0)+10 |
| 028 0379 | Free for National Dialling Only | (0)+10 |
| 028 0380 | Free for National Dialling Only | (0)+10 |
| 028 0381 | Free for National Dialling Only | (0)+10 |
| 028 0382 | Free for National Dialling Only | (0)+10 |
| 028 0383 | Free for National Dialling Only | (0)+10 |
| 028 0384 | Free for National Dialling Only | (0)+10 |
| 028 0385 | Free for National Dialling Only | (0)+10 |
| 028 0386 | Free for National Dialling Only | (0)+10 |
| 028 0387 | Free for National Dialling Only | (0)+10 |
| 028 0388 | Free for National Dialling Only | (0)+10 |
| 028 0389 | Free for National Dialling Only | (0)+10 |
| 028 0390 | Free for National Dialling Only | (0)+10 |
| 028 0391 | Free for National Dialling Only | (0)+10 |
| 028 0392 | Free for National Dialling Only | (0)+10 |
| 028 0393 | Free for National Dialling Only | (0)+10 |
| 028 0394 | Free for National Dialling Only | (0)+10 |
| 028 0395 | Free for National Dialling Only | (0)+10 |
| 028 0396 | Free for National Dialling Only | (0)+10 |
| 028 0397 | Free for National Dialling Only | (0)+10 |
| 028 0398 | Free for National Dialling Only | (0)+10 |
| 028 0399 | Free for National Dialling Only | (0)+10 |