David Wang
-Updated on June 25, 2026
What does an OnTrac tracking number look like?
An OnTrac tracking number is usually 14 characters: a single letter, most commonly C or D, followed by 13 digits, for example C11286171075072. After the 2021 LaserShip merger you may also see legacy formats beginning with 1LS, LS, or LX. All of these trace through OnTrac.
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