SAN ANTONIO — A veteran San Antonio police sergeant speaking at the scene of a shooting Friday afternoon said keeping track of serial numbers and reporting when firearms are stolen is the best thing ...

Let’s say you buy a pre-owned or vintage watch and want some more information on when it was made, what it might be worth, etc. The watch’s serial number can, in many cases, help you track down this ...

Your Android phone’s serial number is a unique identifier that can be used to track your phone if it is lost or stolen. It can also be used to register your phone with your carrier or manufacturer, to ...