In America it's called a zip code. The numbers refer to a nationwide grid with the northeast part of the country (the oldest part) being lower numbers (ex. 111xx) and the Southwest part of the country being higher numbers (ex. 999xx).
Good question. I don't know if they ever use post code in Vietnam.
The large amounts of Americans moving west
2600
forest, water, grew crops
they were trying to change the system
It varies with the location inside the country. Refer to the following link for the various postcodes in Sri Lanka.
AMericans.
there is no postcode for Kerry
postcode ankara
your postcode
postcode 1550
His postcode is 90077
The postcode is WF1 2NX
The postcode for Macquarie Centre is 2113.
The Postcode of Dina is 49400.
This is not a postcode. England has many postcodes.
6767