A thief threw a rock through the door of the store on Sunrise Highway early Tuesday Morning, police said.
The incident happened at about 2:30 a.m. The thief entered the store and took an unknown number of cell phones and fled.
The break-in appears similar to a recent number of burglaries at Verizon stores in Merrick. In those incidents a brick was used to break the front door.
Police say they're looking into the possibility that the Massapequa break-in may be related.
There were no apparent witnesses and police are asking anyone with information to contact Nassau County Crime Stoppers at 1-800-244-TIPS. All callers will remain anonymous.