| Code | Region | Picture |
| A | Burgas | |
| B | Varna | |
| BH | Vidin | |
| BP | Vratsa | |
| BT | Veliko Turnovo | |
| C | Sofiya city -05 | |
| CA | Sofiya 05- | |
| CC | Silistra | |
| CH | Sliven | |
| CM | Smolyan | |
| CO | Sofiya - region | |
| CT | Stara Zagora | |
| E | Blagoevgrad | |
| EB | Gabrovo | |
| EH | Pleven | |
| H | Shumen | |
| K | Kurdzhali | |
| KH | Kyustendil | |
| M | Montana | |
| OB | Lovech | |
| P | Ruse | |
| PA | Pazardzhik | |
| PB | Plovdiv | |
| PK | Pernik | |
| PP | Razgrad | |
| T | Targovishte | |
| TX | Dobrich | |
| X | Khaskovo | |
| Y | Yambol | |
