A total of 42 eight-car trainsets were built, between 1988 and 1994, entering service on 1 July 1988 and the final sets were withdrawn by 8 February 2020.

As of 1 April 2017[update], the fleet consisted of 40 eight-car sets, formed as shown below, with car 1 at the Naka-Meguro (south) end.

[5] The 03 series was fully retired from the Hibiya Line on 28 February 2020 with no fanfare; Tokyo Metro cited the inconvenience created from the crowding of train enthusiasts during the farewell event for the 6000 series as the main reason for this decision.

They're intended to replace the older 3500 series (ex-TRTA 3000 series, themselves too ex-Hibiya Line stock) which currently form the backbone of local service rolling stock on the railway.

[8] Hokuriku Railway plans to buy a total of five 03 series sets for use on the Asanogawa Line.