Tokyo subway

Tokyo subway
Logos of the Tokyo Metro (left) and Toei Subway (right)
Toei 6300 series (left) and Tokyo Metro 9000 series (right) trains at Tamagawa Station
Overview
Locale	Tokyo, Japan
Transit type	Rapid transit
Number of lines	13
Number of stations	285
Daily ridership	Tokyo Metro: 5.95 million (2022)[1] Toei Subway: 2.00 million (2022)[2]
Annual ridership	3.921 billion (2019)[3]
Operation
Began operation	30 December 1927
Operator(s)	Tokyo Metro Co., Tokyo Metropolitan Bureau of Transportation (Toei)
Technical
System length	304.1 km (189.0 mi)
Track gauge	1,067 mm (3 ft 6 in), 1,435 mm for Ginza, Marunouchi, Toei Asakusa & Toei Ōedo Lines, 1,372 mm for Toei Shinjuku Line
System map

Two major subway systems (Japanese: 地下鉄, Hepburn: chikatetsu) operate in Tokyo: Tokyo Metro and the Toei Subway. Most of the network is located in the 23 special wards, with portions extending into Chiba and Saitama Prefectures. The subways are one part of Greater Tokyo's passenger rail network, with through service further connecting the subway to suburban railways in Western Tokyo and Kanagawa Prefecture.