What is the postcode of Lixian County, Longnan City, Gansu Province?

According to the information in China Postal Code Database, the postal code of Lixian County, Longnan City, Gansu Province is 742200, and the postal code of China adopts a four-level six-digit coding structure. The first two 74 represent Gansu Province, the third 2 represents Longnan City, the fourth 2 represents Lixian County, and the last two 00 represents the delivery office.