Check if the postcode or zip code is valid

Question

After some searches, I could not find a definite answer.

If I am assigned a postcode, such as 11111, it is technically a valid postcode, but it does not exist. Is there any way to check this? The same goes for a postal code such as a1a a1a (valid, but not real).

Answer 1

For US Postal Codes:

You can purchase / download zip codes databases that you can use in your local application.

Google for

our zip code database

, ( ):

http://www.unitedstateszipcodes.org/zip-code-database/

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