The is a commuter railway line of the Japanese private railway operator Seibu Railway. It originates at Ikebukuro Station, a large railway junction in north-western Tokyo, extending to northwest suburbs as far as Tokorozawa, Saitama, and nominally terminates at Agano Station.
The Seibu Chichibu Line from Agano to Seibu Chichibu Station is essentially an extension. The operation is however divided at Hannō Station, where trains reverse.
The Ikebukuro Line has three branches with through operation, apart from the Seibu Chichibu Line.
2-track: Ikebukuro to Nerima (6.0 km), Nerima-Takanodai to Hannō (40.2 km), Kita-Hannō rail yard to Musashigaoka Rail yard (1.5 km)
1-track: the remainder
Abbreviations here are for the table below, not formally used.
Stops at all stations. The longest operations are Ikebukuro to Hannō, through to Seibu Kyūjō-mae on Sayama Line, through to Toshimaen on Toshima Line. Also through from Tokyo Metro Yūrakuchō Line to Kotesashi. Major sections of service are from Ikebukuro to Toshima-en,......