phone says "searching for service"?

ive had this phone for a few months and today i charged it and when i turned it on it says serching for service. every one else on my accounts phones are working just fine and the phone worked fine last night. does anyone know if this is a common problem or if the phone is broke or what.

Well, if it's a SIM card phone, take the sim card out while the phone is off and put it back in.
Might fix the problem.

No SIM, call your phone provider and have them walk you through a few things, the phone may have accidentally become deactivated on the account, or lost its settings (which has been known to happen)

well said good sir