| Value | Category |
|---|---|
| 001 | Banteay Mean Chey |
| 002 | Bat Dambang |
| 003 | Kampong Cham |
| 004 | Kampong Chhnang |
| 005 | Kampong Spueu |
| 006 | Kampong Thum |
| 007 | Kampot |
| 008 | Kandal |
| 009 | Kaoh Kong |
| 010 | Kracheh |
| 011 | Mondol Kiri |
| 012 | Phnom Penh |
| 013 | Preah Vihear |
| 014 | Prey Veaeng |
| 015 | Pousat |
| 016 | Rotanak Kiri |
| 017 | Siem Reab |
| 018 | Krong Preah Sihanouk |
| 019 | Stueng Traeng |
| 020 | Svay Rieng |
| 021 | Takaev |
| 022 | Otdar Mean Chey |
| 023 | Krong Kaeb |
| 024 | Krong Pailin |
| 301 | China |
| 302 | Hong Kong |
| 304 | Indonesia |
| 305 | Japan |
| 308 | Laos |
| 309 | Malaysia |
| 313 | Phiippines |
| 316 | Thailand |
| 317 | Vietnam |
| 399 | Other Asia |
| 401 | Australia |
| 501 | Belgium |
| 599 | Other Europe |
| 601 | USA |
| 900 | Other country |
| 998 | Response suppressed |
| 999 | NIU (not in universe) |