Postcards by regions of Serbia
- unsortet (12)
- 00 Belgrade (92)
- 01 North Bačka (11)
- 02 Central Banat District (1)
- 03 North Banat (2)
- 04 South Banat (10)
- 06 South Bačka (18)
- 07 Srem District (1)
- 09 Kolubara (1)
- 10 Podunavlje County (11)
- 11 Braničevo (1)
- 12 Sumadija County (4)
- 13 Pomoravlje District (4)
- 14 Bor (2)
- 15 Zaječar (3)
- 16 Zlatibor (5)
- 17 Moravica District (1)
- 18 Raska County (1)
- 19 Rasina (2)
- 20 Nišava District (12)
- 23 Jablanica (1)
- 24 Pcinja (2)
