The location indicators marked with an asterisk (*) cannot be used in the address component of AFS messages.
| 1. ENCODE | |
|---|---|
| Location | Indicator |
| AIR OPERATIONS CENTRE (RSAF) | WSAH |
| BATAM/HANG NADIM (INDONESIA) | WIDD |
| JOHOR BAHRU | WMKJ |
| PAYA LEBAR | WSAP |
| SATCC (RSAF) | WSAR |
| SEMBAWANG | WSAG |
| SINGAPORE / SELETAR | WSSL |
| SINGAPORE / SINGAPORE CHANGI INTL | WSSS |
| SINGAPORE ACC/FIC | WSJC |
| TANJUNG BALAI KARIMUN/ RAJA HAJI ABDULLAH (INDONESIA) | WIDT |
| TANJUNGPINANG / RAJA HAJI FISABILILLAH (INDONESIA) | WIDN |
| TENGAH | WSAT |
| 2. DECODE | |
|---|---|
| Indicator | Location |
| WIDD | BATAM/HANG NADIM (INDONESIA) |
| WIDN | TANJUNGPINANG / RAJA HAJI FISABILILLAH (INDONESIA) |
| WIDT | TANJUNG BALAI KARIMUN/ RAJA HAJI ABDULLAH (INDONESIA) |
| WMKJ | JOHOR BAHRU |
| WSAG | SEMBAWANG |
| WSAH | AIR OPERATIONS CENTRE (RSAF) |
| WSAP | PAYA LEBAR |
| WSAR | SATCC (RSAF) |
| WSAT | TENGAH |
| WSJC | SINGAPORE ACC/FIC |
| WSSL | SINGAPORE / SELETAR |
| WSSS | SINGAPORE / SINGAPORE CHANGI INTL |