| Abbreviation | Definition |
|---|---|
| EFAH | Ahmosvo, S-Finland |
| EFAL | Ahtari, S-Finland |
| EFB | Eight Fathom Bight, Alaska USA |
| EFD | Ellington Field, Houston, Texas USA |
| EFET | Enontekio, S-Finland |
| EFEU | Alavus, S-Finland |
| EFFO | Eura, S-Finland |
| EFG | Efogi, Papua New Guinea |
| EFHA | Forssa, S-Finland |
| EFHF | Helsinki Malmi, S-Finland |
| EFHK | Helsinki Vantaa, S-Finland |
| EFHL | Haapavesi, S-Finland |
| EFHM | Hailuoto, S-Finland |
| EFHN | Halli, S-Finland |
| EFHP | Hameenkyro, S-Finland |
| EFHT | Hanko, S-Finland |
| EFHV | Hyvinkaa, S-Finland |
| EFII | Iisalmi, S-Finland |
| EFIK | Ilmajoki, S-Finland |
| EFIL | Immola, S-Finland |