| NAME | TEL CODE | TELEPHONE | POSTAL CODE | CITY |
| Kalymnos Telephone Service (O.T.E) | 0243 | 29599 | 852 00 | KALYMNOS |
| CITY | TEL CODE |
| ARGINONDA | 0243 |
| ARGOS | 0243 |
| DASSOS | 0243 |
| EMBORIOS | 0243 |
| HORIO | 0243 |
| KALYMNOS | 0243 |
| KAMARI | 0243 |
| KANDOUNI | 0243 |
| LINARIA | 0243 |
| MASSOURI | 0243 |
| METOHI | 0243 |
| MYRTIES | 0243 |
| PANORMOS | 0243 |
| SKALIA | 0243 |
| STIMENIA | 0243 |
| VATHIS | 0243 |
| VOTHINI | 0243 |
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