Area Codes sa Karjamaa
Mga Kalapit na Siyudad
| Lungsod | Rehiyon | Bansa | Populasyon | Area Codes | Postal Code |
|---|---|---|---|---|---|
| Kotka | Kymenlaakso | Finland | 54,616 | 5 | 48100, 48130, 48200, 48210 |
| Kouvola | Kymenlaakso | Finland | 31,133 | 5 | 45100, 45120, 45130, 45150 |
| Lappeenranta | Etelä-Karjala | Finland | 59,276 | 5 | 53100, 53130, 53200, 53300 |
| Liivaküla | Lääne-Virumaa | Estonia | — | 32 | — |
| Porvoo | Uusimaa | Finland | 47,192 | 19 | 04601, 06100, 06101, 06150 |