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This is a list of postcode areas, used by Royal Mail for the purposes of directing mail within the United Kingdom.The postcode area is the largest geographical unit used and forms the initial characters of the alphanumeric UK postcode. [1]
A group of postcode districts with the same alphabetical prefix is called a postcode area. All, or part, of one or more postcode districts are grouped into post towns. [1] Until 1996, Royal Mail required counties to be included in addresses, except for 110 of the larger post towns.
For the purposes of directing mail, the United Kingdom (although the populations listed just show figures for England, Wales and Northern Ireland), is divided by Royal Mail into postcode areas. The postcode area is the largest geographical unit used and forms the initial characters of the alphanumeric UK postcode . [ 1 ]
The full delivery address including postcode can be validated against the Royal Mail Postcode Address File (PAF), which lists 29 million valid delivery addresses, [27] constituting most (but not all) addresses in the UK. [28] A regular expression for validating UK postcodes is specified in the British Standards document BS 7666. [29]
The Postcode Address File (PAF) is a database that contains all known "delivery points" and postcodes in the United Kingdom.The PAF is a collection of over 29 million Royal Mail postal addresses and 1.8 million postcodes. [1]
Postcode area Postcode name ... Royal Mail (1999). Address Management Guide (6th ed.). "Royal Mail major recode historical information – 2000 to September 2011" (PDF).
The Royal Mail ceased to use postal counties as a means of sorting mail following the modernisation of their optical character recognition equipment in 1996. Instead, using postcode defined circulation, the outward code (first half) of the postcode is used to differentiate between like-sounding post towns.
The London postal district is the area in England of 241 square miles (620 km 2) to which mail addressed to the London post town is delivered. The General Post Office under the control of the Postmaster General directed Sir Rowland Hill to devise the area in 1856 and throughout its history it has been subject to reorganisation and division into increasingly smaller postal units, with the early ...