BR Regions

British Railways was divided into regions which were initially based on the areas the former Big Four operated in; later, several lines were transferred between regions. Notably, these included the former Great Central lines from the Eastern Region to the London Midland Region, and the West of England Main Line from the Southern Region to Western Region.
 * Southern Region of British Railways: former Southern Railway lines.
 * Western Region of British Railways: former Great Western Railway lines.
 * London Midland Region of British Railways: former London Midland and Scottish Railway lines in England.
 * Eastern Region of British Railways: former London and North Eastern Railway lines south of York.
 * North Eastern Region of British Railways: former London and North Eastern Railway lines in England north of York.
 * Scottish Region of British Railways: all lines, regardless of original company, in Scotland.

The North Eastern Region was merged with the Eastern Region in 1967. In the 1980s, the regions were abolished and replaced by "business sectors", a process known as sectorisation.

The Anglia Region was created in late 1987, its first General Manager being John Edmonds, who began his appointment on 19 October 1987. Full separation from the Eastern Region – apart from engineering design needs – occurred on 29 April 1988. It handled the services from Fenchurch Street and Liverpool Street, its western boundary being Hertford East, Meldreth and Whittlesea. undefined