PHOENIX--(BUSINESS WIRE)--FirstBank Holding Company, the highly successful bank with 15 branches in the Phoenix area, today announced a person-to-person (P2P) payments system as the newest tool in its robust mobile banking application. With this addition, FirstBank becomes the most recent bank to offer P2P payments through the clearXchange network, providing customers with an easy way to send and receive money via their mobile devices. FirstBank is the fourth member of the clearXchange network