AAA Mid-Atlantic said Friday that 796 tickets were issued across the state during that period. Of that total, 355 total tickets - nearly half - were written in Philadelphia, Bucks, Chester, Delaware or Montgomery County.
The five-county region has about a third of the state's population.
AAA requested data from the state and added information from Philadelphia police.
Pennsylvania's law against texting while driving took effect March 8 and is a primary offense with a $50 fine.