| Judetul |
Cod | Prefix Romtelecom |
Prefix RDS.Tel, UPC |
| Gorj | GJ | 0253 |
0353 |
| Harghita | HR | 0266 | 0366 |
| Hunedoara | HD | 0254 | 0354 |
| Ialomita | IL | 0243 | 0343 |
| Iasi | IS | 0232 | 0332 |
| Ilfov | IF | 021 | 031 |
| Maramures | MM | 0262 | 0362 |
| Mehedinti | MH | 0252 | 0352 |
| Mures | MS | 0265 | 0365 |
| Neamt | NT | 0233 | 0333 |
| Olt | OT | 0249 | 0349 |
| Prahova | PH | 0244 | 0344 |
| Salaj | SJ | 0260 | 0360 |
| Satu Mare | SM | 0261 | 0361 |
| Sibiu | SB | 0269 | 0369 |
| Suceava | SV | 0230 | 0330 |
| Teleorman | TR | 0247 | 0347 |
| Timis | TM | 0256 | 0356 |
| Tulcea | TL | 0240 | 0340 |
| Valcea | VL | 0250 | 0350 |
| Gorj | GJ | 0253 | 0353 |
||
| Harghita | HR | 0266 | 0366 | ||
| Hunedoara | HD | 0254 | 0354 | ||
| Ialomita | IL | 0243 | 0343 | ||
| Iasi | IS | 0232 | 0332 | ||
| Ilfov | IF | 021 | 031 | ||
| Maramures | MM | 0262 | 0362 | ||
| Mehedinti | MH | 0252 | 0352 | ||
| Mures | MS | 0265 | 0365 | ||
| Neamt | NT | 0233 | 0333 | ||
| Olt | OT | 0249 | 0349 | ||
| Prahova | PH | 0244 | 0344 | ||
| Salaj | SJ | 0260 | 0360 | ||
| Satu Mare | SM | 0261 | 0361 | ||
| Sibiu | SB | 0269 | 0369 | ||
| Suceava | SV | 0230 | 0330 | ||
| Teleorman | TR | 0247 | 0347 | ||
| Timis | TM | 0256 | 0356 | ||
| Tulcea | TL | 0240 | 0340 | ||
| Valcea | VL | 0250 | 0350 | ||
| VS VN | 0235 0237 | 0335 0337 |