| Value | Category |
|---|---|
| 231001 | Tigray |
| 231002 | Affar |
| 231003 | Amhara |
| 231004 | Oromia, Somali |
| 231006 | Benishangul-Gumuz |
| 231007 | Southern Nations, Nationalities, and Peoples (SNNP) |
| 231012 | Gambela |
| 231013 | Harari |
| 231014 | Addis Ababa |
| 231015 | Dire Dawa |
| 231017 | Special region |
| 231097 | Abroad |
| 231099 | NIU (not in universe) |