| Abbreviation | Definition |
|---|---|
| OAKL | Konmjak-i-Logar, Afghanistan |
| OAKN | Kandahar, Afghanistan |
| OAKR | Kaldar, Afghanistan |
| OAKS | Khost, Afghanistan |
| OAKT | Kalat, Afghanistan |
| OAKZ | Karez-i-Mir, Afghanistan |
| OAL | Cacoal, TO, Brazil |
| OALG | Logar, Afghanistan |
| OALL | Lal, Afghanistan |
| OALN | Laghman, Afghanistan |
| OAM | Oamaru, New Zealand |
| OAMK | Mukur, Afghanistan |
| OAMN | Maimana, Afghanistan |
| OAMS | Mazar i Sharif, Afghanistan |
| OAMT | Munta, Afghanistan |
| OAN | Olanchito, Honduras |
| OANR | Nawor, Afghanistan |
| OANS | Salang-i-Shamali, Afghanistan |
| OAOB | Obeh, Afghanistan |
| OAOG | Urgoon, Afghanistan |