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The Automobile Association simply referred as The AA - not to be confused with a company of the same name that pre-dates it.
of Fanum House, Whitcomb Street, London, WC2
of Fanum House, Basingstoke
1905 June. Formed by a break-away group from the Automobile Club of Great Britain and Ireland including Charles Jarrott. The Secretary was Stenson Cooke; it borrowed an office in Fleet Street for its first base.
1906 Asked the liquidator of the Automobile Association if it could use that name. The liquidator sold the rights to the name for £100. The liquidators’ accounts, 9 May 1907, show a receipt of £100 from the Motor Users’ Proprietary, the company name used by the AA at the time. 
By 1927 the organisation was just described as The Automobile Association
1933 Formed the Automobile Association (Aviation Department) to provide service, information and maps for members making aerial journeys and touring by air.; the Secretary was Stenson Cooke; address Fanum House, New Coventry Street, London W.1. Telephone: Whitehall 1200.
1984 A new public telephone service based on cellular technology was announced, run by Racal and Millicom. The network would be operated by the AA and Racal, using L. M. Ericsson's Vodafone method