twenty minutes, and skip certain stations while operating on the Asakusa Line. Their northern terminus alternates between "Access Express" (アクセス特急 akusesu tokkyū) service to Narita International Airport and Limited Express service to either Aoto or Takasago. The total travel time from Haneda Airport to Narita Airport on this train is approximately one hour and 46 minutes. Station list All stations are located in Tokyo. The Airport Limited Express/Access Express stops at stations marked "●", skips those marked "|". All other services stop at every station. Rolling stock A variety of rolling stock is in use due to the large number of through service operators on the line, all of which use standard gauge tracks and 1,500 V DC electrification via overhead lines. Currently, six operators run trains onto the Asakusa Line, the most of any Tokyo subway line, and the line is unique as the only subway line in Tokyo with through services onto standard gauge railways (all other through services are with narrow gauge lines). Toei Toei 5300 series Toei 5500 series Keisei Electric Railway Keisei 3000 series Keisei 3050 series Keisei 3100 series Keisei 3400 series Keisei 3600 series Keisei 3700 series Keikyu Keikyu 600 series Keikyu N1000 series Keikyu 1500 series Hokuso Railway Hokuso 7300 series Hokuso 7500 series Chiba New Town Railway Chiba New Town Railway 9100 series Chiba New Town Railway 9200 series Chiba New Town Railway 9800 series Shibayama Railway Shibayama 3600 series Former rolling stock Toei 5000 series Toei 5200 series Keikyu 1000 series Keisei 3000 series (original type) Keisei 3050 series (original type) Keisei 3100 series Keisei 3150 series Keisei 3200 series Keisei 3300 series Keisei 3500 series Hokuso 7000 series Hokuso 7050 series Hokuso 7150 series Hokuso 7250 series Hokuso 7260 series Chiba New Town Railway 9000 series History The Toei Asakusa Line was the first subway line constructed by the Tokyo Metropolitan Government. The line number is Line 1, because it was technically the first subway line in Tokyo to be planned in the 1920s as an underground route connecting the Keikyu and Keisei Electric Railway via , eventually allowing for through trains between these two railways. In its original plan form, the line would have actually bypassed Asakusa Station entirely. However, the plan was changed to take advantage of the existing Tobu Isesaki Line (section now named as the Tobu Skytree Line) and Tokyo Metro Ginza Line connections at