The postcode of Ledu District, Haidong City, Qinghai Province

According to the announcement of National Postal Code Encyclopedia published on the official website of Qinghai Province, the postal code of Ledu District, Haidong City, Qinghai Province is 8 107 1 1, in which the first two digits are 8 1, which refers to the local area code of Qinghai Province.

Postal code is based on the national postal regional system, which represents one of the standards of a country's communication technology and postal service level, and is also the most important embodiment of the digitalization of national or regional postal networks.