Paddington is the London terminus of the Great Western main line; passenger services are primarily operated by Great Western Railway, which provides the majority of commuter and regional passenger services to west London and the Thames Valley region as well as long-distance intercity services to South West England and South Wales. It is also the terminus for the Heathrow Express and TfL Rail services to and from Heathrow Airport and Reading. It is one of 11 London stations managed directly by Network Rail. It is situated in fare zone 1 and has two separate tube stations providing connections to the Bakerloo, Circle, District, and Hammersmith & City lines.