United Postal Union Postcodes

All postcode formats, validations, and masking by country

Use

TODO

TODO

- [ ] Add in mapping of ISO3166-2 to postcode region ids to allow autofill when region is known
- [ ] Add indicator when PO Box relations
- [ ] Add in Valid, Invalid samples
- [ ] Add in testing of pattern and masking
- [ ] Add sources for each country
- [ ] Add Contributing doc

Sources
- https://en.wikipedia.org/w/index.php?title=List_of_postal_codes
- https://github.com/Cimpress-MCP/postal-codes-js