Expressway 2 (E2) forms part of the Philippine expressway network. Its main route runs from Makati to Santo Tomas as South Luzon Expressway and from Santo Tomas to Batangas City as STAR Tollway. It also has spurs signed as E2 as well. South Luzon Expressway's section from Makati to Calamba, apparently as well as Skyway from Makati to Muntinlupa, is also part of AH26.