David Wang
-Updated on June 26, 2026
What does a Pony Express tracking number look like?
A Pony Express tracking number is most often a numeric waybill of about 12 digits, sometimes shown in hyphen-separated groups such as 27-5398-4915 for readability. Some corporate or account-based bookings use an alphanumeric reference that starts with letters. Pony Express does not use the 13-character UPU S10 postal format, so its numbers do not end in a two-letter country code.
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