Service areas:

West Harrow, Rayners Lane, Rayners Lane, South Harrow, Kenton, Harrow on the Hill, Harrow, Northwick Park, Belmont, Queensbury, Harrow Weald, Carpenders Park, Wembley, Greenford, Sudbury Hill, Wembley Park, North Wembley, Pinner, Eastcote, Sudbury, Tokyngton, Wealdstone, Preston, Perivale, Northolt, Mill Hill, West Hendon, The Hyde, Hatch End, Arkley, Ruislip, Colindale, Kingsbury, Alperton, Stanmore, HA1, HA2, HA0, HA3, HA9, HA7, UB5, HA5, NW7, HA4, UB6, NW9