Postal codes in Thailand

Postal codes in Thailand are five digit numbers. The first two digits of the postal code denote the province or special administrative area (e.g., 43120 Phon Phisai, Nong Khai).
Listed below are the first 2 digits of codes assigned to each province or special administrative area.
Classification of postcodes.
Postcodes in Thailand are issued by the Ministry of Digital Economy and Society (MDES).
In 2018 Thailand Post allocated 10 billion baht to construct two new "automated sorting" centers, one in Chonburi Province and the other in Wang Noi District, Ayutthaya Province. Its goal is to fully automate postal and delivery operations as well back office procedures in 2021.