ASEAN (Association of Southeast Asian Nations) has 10 member countries in Southeast Asia. Here they are with flags and ISO codes.
| Flag | Country | Code |
|---|---|---|
 | Brunei | BN |
 | Cambodia | KH |
 | Indonesia | ID |
 | Laos | LA |
 | Malaysia | MY |
| Flag | Country | Code |
|---|---|---|
 | Myanmar | MM |
 | Philippines | PH |
 | Singapore | SG |
 | Thailand | TH |
 | Vietnam | VN |