Postal · since 2000s
PLANET
US mail tracking (retired)
POSTNET inverted: three tall and two short bars per digit. It tracked mail pieces before Intelligent Mail.
Generate
At a glance
- Introduced
- 2000s
- Created by
- United States Postal Service
- Characters
- Digits 0–9
- Length
- 11 or 13 digits plus check
- Check
- Mod 10
- Capacity
- 13 digits
