On Saturday 11th February 1928, Birmingham and Midland Motor Omnibus Company Limited (BMMO—Midland “Red” Motor Services) again renumbered their stage carriage services into groups depending on their geographical location, stating with Service 100. Route numbers 1–99 were not used to avoid confusion with Birmingham Corporation routes.
Update to the Timetable Books dated Saturday 2nd October 1954, effective from Saturday 12th March 1955.