| Code | Name | Region |
|---|---|---|
| GRIKL | Iraklion | 15 |
| GRNAI | Iraklion | 91 |
| GRITM | Isthmia | |
| GRSAA | Istiaia | 4 |
| GRITA | Itea | |
| GRITH | Ithaki (ithaca) | |
| GRKKV | Kakavia | 33 |
| GRKAL | Kalabaka | 44 |
| GRKLM | Kalamaki | |
| GRGAI | Kalamaria | 54 |
| GRGKU | Gerakarou | |
| GRGER | Gerakas | |
| GRGIA | Gialtra | |
| GRGAK | Giannitsa | 59 |
| GRGLO | Glossa | |
| GRGLY | Glyfa Fthiotidas | 6 |
| GRGFD | Glyfada | A1 |
| GRGON | Gonnoi | 42 |
| GRGSA | Goumenissa | B |
| GRGVA | Grevena | |
| GRGYT | Gythion | |
| GRHRI | Halandri | A1 |
| GRHAL | Halki Dodekanison | 81 |
| GRHRK | Herakleia Kykladon | |
| GRHER | Heraklion (iraklion) | 91 |
| GRHYD | Hydra (idhra) | |
| GRIER | Ierapetra | 92 |
| GRIES | Ierissos | |
| GRIGO | Igoumenitsa | |
| GRFAM | Farmakonissi Dodekanissos | 81 |
| GRFAR | Farsala | 42 |
| GRFER | Ferai | |
| GRFIL | Filiatra | |
| GRFIS | Fiskardo | 23 |
| GRFIA | Florina | |
| GRFOL | Folegandros | 82 |
| GRFOU | Fournoi | 84 |
| GRSAT | Frikes Ithakis | |
| GRFYT | Fyteies | 1 |
| GRGAL | Galatas Troizinas | A1 |
| GRGTA | Galatista | 64 |
| GRGSI | Galatsion | A1 |
| GRGLX | Galaxidi | 7 |
| GRGNO | Ganochora | 61 |
| GRGAS | Gastouni | 14 |
| GRGAD | Gavdos Chanea | |
| GRGAV | Gavrion | |
| GRGAZ | Gazoros | 62 |
| GRGEF | Gefyra | |
| GRELT | Eleftheres |