The City Transit Division of the Southeastern Pennsylvania Transportation Authority (SEPTA) operate almost all of Philadelphia's public transit, including all six trolley, three trackless trolley, and 70 bus lines within city limits. Some of the bordering municipalities are served by the City Transit division, despite not being part of the city. For example, Cheltenham Township has 13 city division routes and no Suburban Division ones. The City Transit division also operates the 400 Series routes which are designed to serve students attending schools in the city of Philadelphia.
The City Transit Division is broken down into seven districts (Allegheny, Callowhill, Comly, Elmwood, Frankford, Midvale, and Southern) and Contract Operations.