 Since April 29, 2006, the mass-transit system TransMilenio covers the area along the Autopista Norte with its "B Line"; Portal del Norte, Toberín, Calle 161, Mazurén, Calle 146, Calle 142, Alcalá, Prado, Calle 127, Pepe Sierra, Calle 106 and Avenida Suba with its "C Line"; Portal de Suba, La Campiña, Suba-Transversal 91, 21 Ángeles, Gratamira, Suba-Boyacá Avenue, Niza Calle 127, Humedal Córdoba, Av.Suba Calle 116, Puente Largo, Suba Calle 100, Suba Calle 95, Rionegro and San Martín.Other avenues like Avenida Boyacá, Avenida Ciudad de Cali, Calle 134 and Calle 170 are serviced by regular bus companies.