Postal Letter

When do UPS and/or Fedex tracking numbers expire?

I have a couple tracking numbers that I can't find but I was wondering I I should even put in the time to look for them. I've looked all over the Internet but can't find an answer anywhere. Any help is greatly apperciated. Thank again.

Public Comments

1. I dont think they expire since you cant reuse the same airbill for another package you could allso call 1800 go fedex -they might be able to track it for you