Area Codes in Greece
Most populated cities in Greece
| Area Code▲ | City↕ | Administrative Region↕ | City Population↕ | Country/Region | Timezone |
|---|---|---|---|---|---|
| 21 | Athens | Attica (region) | 664,046 | Greece | Europe/Athens |
| 2221 | Chalcis | Central Greece (region) | 59,125 | Greece | Europe/Athens |
| 2222 | Kymi, Greece | Central Greece (region) | 2,979 | Greece | Europe/Athens |
| 2223 | Aliveri | Central Greece (region) | 5,184 | Greece | Europe/Athens |
| 2224 | Karystos | Central Greece (region) | 5,091 | Greece | Europe/Athens |
| 2226 | — | — | 11,000,000 | Greece | Europe/Athens |
| 2227 | Mantoúdi | Central Greece (region) | 1,794 | Greece | Europe/Athens |
| 2228 | Psachná | Central Greece (region) | 5,828 | Greece | Europe/Athens |
| 2229 | Eretria | Central Greece (region) | 4,166 | Greece | Europe/Athens |
| 2231 | Lamia (city) | Central Greece (region) | 52,006 | Greece | Europe/Athens |
| 2232 | Domokos | Central Greece (region) | 1,531 | Greece | Europe/Athens |
| 2233 | Atalanti | Central Greece (region) | 4,978 | Greece | Europe/Athens |
| 2234 | Amfikleia | Central Greece (region) | 3,012 | Greece | Europe/Athens |
| 2235 | — | — | 11,000,000 | Greece | Europe/Athens |
| 2236 | Makrakomi | Central Greece (region) | 2,245 | Greece | Europe/Athens |
| 2237 | Karpenisi | Central Greece (region) | 6,888 | Greece | Europe/Athens |
| 2238 | — | — | 11,000,000 | Greece | Europe/Athens |
| 2241 | Rhodes (city) | South Aegean | 56,128 | Greece | Europe/Athens |
| 2242 | Kos | South Aegean | 19,244 | Greece | Europe/Athens |
| 2243 | Kalymnos | South Aegean | 10,002 | Greece | Europe/Athens |
| 2244 | — | — | 11,000,000 | Greece | Europe/Athens |
| 2245 | Karpathos (regional unit) | South Aegean | 2,243 | Greece | Europe/Athens |
| 2246 | Salakos | South Aegean | — | Greece | Europe/Athens |
| 2247 | — | — | 11,000,000 | Greece | Europe/Athens |
| 2251 | Mytilene | North Aegean | 28,322 | Greece | Europe/Athens |
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