In terms of WMATA's internal route designations, the Blue Line service travels along the entirety of the J Route (from the terminus at Franconia-Springfield to the C & J junction just south of King Street), part of the C Route (from the C & J junction just south of King Street to Metro Center), part of the D Route (from Metro Center to the D & G Junction just east of Stadium-Armory) and the entire G Route (from the D & G junction past Stadium-Armory to the terminus at Largo Town Center).