| Continent | 2 Char. | 4 Char. |
|---|---|---|
| Africa | AF | AFRI |
| Antarctica | AN | ANTR |
| Asia | AS | ASIA |
| Indian Ocean | AS | INDI |
| Middle East | AS | MDLE |
| Europe | EU | EURO |
| North America | NA | NOAM |
| Australia | OC | AUST |
| Pacific Islands North | OC | NPAC |
| Oceania | OC | OCEA |
| Pacific Islands South | OC | SPAC |
| Carribean | SA | CARB |
| Central America | SA | CEAM |
| South America | SA | SOAM |