What is the postcode of Tongnan, Chongqing?

402660。 According to the postal code database, Tongnan District belongs to Chongqing, and its postal code is 402660. Chongqing, also known as Mountain City or Jiangcheng for short, is a municipality directly under the Central Government of the People's Republic of China, a national central city, a megacity, one of the important national central cities approved by the State Council, and an economic center in the upper reaches of the Yangtze River.