Postal · since 1982
POSTNET
US mail sorting (retired 2013)
Encodes the ZIP code in tall and short bars of equal width, two tall in every five. Replaced by the Intelligent Mail barcode.
Generate
At a glance
- Introduced
- 1982
- Created by
- United States Postal Service
- Characters
- Digits 0–9
- Length
- 5, 9 or 11 digits plus check
- Check
- Mod 10 (sum to a multiple of 10)
- Capacity
- 11 digits (ZIP+4 + delivery point)
