USPS POSTNET

USPS POSTNET

The USPS POSTNET barcode symbology is used by the US Postal Service to encode the ZIP code information on letter mail.

Uses:

• US mail, superseded by the USPS Intelligent Mail barcode.

Standards: USPS Publication 25.

Data and Options

• The data field contains five, nine or eleven digits (ZIP, ZIP+4, or ZIP+4 and delivery point), without dashes.
• The mandatory check digit is calculated automatically, unless validatecheck is given.
• The validatecheck option takes the last digit of the data to be the check digit and refuses the data if it is wrong.
• The includecheckintext option makes the check digit appear in the human readable text.

Examples

A ZIP+4+delivery point code:

Data:    12345123412
Options:
Encoder: postnet