# Marunouchi Branch Line

The Marunouchi Branch Line connects 4 stations across Tokyo, including Nakano-sakaue, Honancho and Nakano-fujimicho. See supported trains on the map, with their current positions and next stops.

## Facts

- **Operator:** Tokyo Metro
- **Line code:** Mb
- **Stations:** 4
- **Termini:** Honancho – Nakano-sakaue
- **Weekday calls at busiest station:** 365
- **Japanese name:** 丸ノ内線支線

## Service hours (weekday, tracked)

- **First:** 05:00 from Honancho
- **Last:** 00:28 from Nakano-Shimbashi toward Nakano-fujimicho
- **Service window:** about 19 hours

## Stations on this line

4 stations

- [Honancho](/stations/honancho.md)
- [Nakano-fujimicho](/stations/nakano-fujimicho.md)
- [Nakano-Shimbashi](/stations/nakano-shimbashi.md)
- [Nakano-sakaue](/stations/nakano-sakaue.md) — transfers: [Oedo Line](/lines/oedo.md), [Marunouchi Line](/lines/marunouchi.md)

## Related

- [All lines](/lines/index.md)
- [All stations](/stations/index.md)