Postal codes in Hanoi, Vietnam follow the format 10XXXX to 15XXXX. GeoPostcodes Datasets allows users to search for specific postal codes within Hanoi and the rest of the world.
Postal codes in Vietnam are composed of six digits; 120451 is one example. The first two numbers are used to designate the province or city, the next two numbers designate district or town, and the final two numbers identify the ward. Vietnam Posts and Telecommunications Group is responsible for operating the national postal system in Vietnam.
Addresses in Vietnam are written from the specific to general, starting with a person's name, then street address and so forth:
House Number Street Name
City or Province, Postal Code, Vietnam