| Réponse | Nombre de lettres |
|---|---|
| IAD | 3 lettres |
| IAH | 3 lettres |
| IAL | 3 lettres |
| IAM | 3 lettres |
| IAN | 3 lettres |
| IAO | 3 lettres |
| IAR | 3 lettres |
| IAS | 3 lettres |
| IAU | 3 lettres |
| IBA | 3 lettres |
| IBE | 3 lettres |
| IBM | 3 lettres |
| IBN | 3 lettres |
| IBO | 3 lettres |
| IBU | 3 lettres |
| ICA | 3 lettres |
| ICE | 3 lettres |
| ICI | 3 lettres |
| IDA | 3 lettres |
| IDE | 3 lettres |
| IDF | 3 lettres |
| IDI | 3 lettres |
| IDN | 3 lettres |
| IDO | 3 lettres |
| IDX | 3 lettres |
| IEA | 3 lettres |
| IEE | 3 lettres |
| IEL | 3 lettres |
| IEM | 3 lettres |
| IEN | 3 lettres |
| IEP | 3 lettres |
| IER | 3 lettres |
| IEV | 3 lettres |
| IFE | 3 lettres |
| IFO | 3 lettres |
| IFS | 3 lettres |
| IGA | 3 lettres |
| IGE | 3 lettres |
| IGN | 3 lettres |
| IGR | 3 lettres |
| IGS | 3 lettres |
| IGU | 3 lettres |
| IHM | 3 lettres |
| IHS | 3 lettres |
| IIE | 3 lettres |
| III | 3 lettres |
| IIL | 3 lettres |
| IIV | 3 lettres |
| IKE | 3 lettres |
| ILA | 3 lettres |