What is the postcode of dongxiang county, Gansu?

According to the postcode database, the postcode of dongxiang county is 73 1400. 73 in 73 1400 stands for Longnan City, 14 stands for the area code where dongxiang county is located, and 00 stands for the code of the local post office. Postal code usually consists of 6 digits, the first two digits represent provinces or municipalities directly under the central government, and the middle four digits are the combination of area code and post office code.