USPS tracking numbers are typically 22 digits long.
1. How many digits are in a USPS tracking number?
A USPS tracking number is typically 22 digits long.
2. How long does it take for a USPS tracking number to become active?
Once a package is scanned into the USPS system, the tracking number should become active within 24 hours.
3. How long does USPS tracking information stay available?
USPS tracking information is typically available for up to 120 days after the package has been delivered.