Why Does My Tracking Number Have Letters. 4221736293 #4 fedex carrier tracking number. If you send the tracking number too early, even it is a real one, the courier or postal service has not yet uploaded the tracking information online (i.e.
Packages with such numbers can be tracked right until delivery. Please check you've entered the number correctly. If after 24 hours you are still experiencing problems, you can contact cyberpowerpc.