The SEPTA Regional Rail Division provies commuter rail service on thirteen branches to over 150 active stations in Philadelphia, Pennsylvania and its suburbs. Service on most lines runs from 5:30 AM to midnight. The core of the Regional Rail system is the Center City Commuter Connection comprised of three Center City stations in the "tunnel" corridor: the above-ground upper level of 30th Street Station; and the underground Suburban Station; and Market East Station. All trains stop at these Center City stations, and most also stop at Temple University station on the campus of Temple University in North Philadelphia.