The is a subway line owned and operated by Tokyo Metro in Tokyo, Japan. The line runs between Meguro in Shinagawa and Akabane-Iwabuchi in Kita. The Namboku Line was referred to as Line 7 during the planning stages, thus the seldom-used official name is . On maps, diagrams and signboards, the line is shown using the color emerald (previously coded "teal"), and its stations are given numbers using the letter "N".


Trains run through onto the Tokyu Meguro Line for and the Saitama Railway's Saitama Rapid Railway Line (which is essentially a separately-owned extension of the Namboku Line) for . The right-of-way and stations between and Meguro are shared with the Toei Mita Line – a unique situation on the Tokyo subway where both operators share common infrastructure. Under an agreement between Tokyo Metro and the Tokyo Metropolitan Government, the fare for this section is calculated on the Toei fare system for passengers traveling to stations on the Mita Line past Shirokane-Takanawa, on the Metro fare system for passengers traveling to stations on the Namboku Line past Shirokane-Takanawa, and on the system "most beneficial to the passenger" (presently the Metro schedule) for travel solely on the shared sector. On maps, diagrams and signboards, the Namboku Line is shown using the color emerald (), and its stations are given numbers using the letter "N".

Station list

* All stations are located in Tokyo. * All services stop at all stations.

Rolling stock

* Tokyo Metro 9000 series 6-car EMUs * Saitama Rapid Railway 2000 series 6-car EMUs * Tokyu 3000 series 6-car EMUs * Tokyu 5080 series 6-car EMUs * Tokyu 3020 series 6-car EMUs File:Tokyo Metro 9119 Tamagawa 20070207.jpg|Tokyo Metro 9000 series File:Saitama-Railway-2000.jpg|Saitama Rapid Railway 2000 series File:Tokyu-3000.jpg|Tokyu 3000 series File:Tokyu-5080-2.jpg|Tokyu 5080 series File:3020系.jpg|Tokyu 3020 series


The 21.3 km Namboku Line is one of Tokyo Metro's newer lines, featuring advanced technology including full automatic train operation and platform screen doors. Although the line was originally proposed in 1968, construction did not begin until the 1980s, partly due to the right-of-way to Meguro with the Toei Mita Line. The first segment from to opened on November 29, 1991. The line initially operated with four-car EMUs. Upon its extension to Yotsuya in March 1996, the formations were extended to six cars. All stations have enough clearance for extending to eight-car trains, but this length is not yet constructed to full. There is new news that the Namboku line will start operating 8 car trains in fiscal year 2022. The extension to was completed in September 1997, and the last stretch from Tameike-Sanno to Meguro was completed on September 26, 2000, when through service to the Tokyu Meguro Line started. Through service with the Saitama Rapid Railway Line commenced when it opened in March 2001 and accommodated traffic to and from Saitama Stadium during the 2002 World Cup. Although the Saitama Line is more or less a northern extension of the Namboku Line, it nevertheless remains a private entity to which the Namboku Line offers through services with.


* Shaw, Dennis and Morioka, Hisashi, "Tokyo Subways", published 1992 by Hoikusha Publishing

External links

Tokyo Metro website
{{DEFAULTSORT:Namboku Line Category:Lines of Tokyo Metro Category:Railway lines in Tokyo Category:Railway lines opened in 1991 Category:1067 mm gauge railways in Japan Category:1991 establishments in Japan