World Sea Ports
| Port Name | Port Code | Country Name |
|---|---|---|
| Aït Melloul | MASMD | Morocco |
| Aith | GBAIT | United Kingdom |
| Aitrach | DEAIT | Germany |
| Aitutaki | CKAIT | Cook Islands |
| Aizu, Kumamoto | JPAIZ | Japan |
| Aja | JPAJX | Japan |
| Ajaccio | FRAJA | France |
| Aji | JPAJI | Japan |
| Ajigasawa | JPAJK | Japan |
| Ajino | JPAJN | Japan |