| Abbreviation | Definition |
|---|---|
| OISO | Zarghan, Iran |
| OISP | Persepolis-Marvdasht, Iran |
| OISQ | Ghir-Karzin, Iran |
| OISR | Lamerd, Iran |
| OISS | Shiraz International, Iran |
| OISU | Abarghou, Iran |
| OISW | Kohkiloyeh, Iran |
| OISX | Khonj, Iran |
| OISZ | Firouzabad, Iran |
| OIT | Oita, Japan |
| OITA | Sarab, Iran |
| OITB | Mahabad, Iran |
| OITC | Sardasht, Iran |
| OITD | Marand, Iran |
| OITE | Salmas, Iran |
| OITF | Abhar, Iran |
| OITG | Naghadeh, Iran |
| OITH | Khaneh-Piranshahr, Iran |
| OITI | Mianeh, Iran |
| OITJ | Julfa, Iran |