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The postcode area is the largest geographical unit used and forms the initial characters of the alphanumeric UK postcode. [1] There are currently 121 geographic postcode areas in use in the UK and a further three often combined with these covering the Crown Dependencies of Guernsey, Jersey and Isle of Man.
Postcode areas shown with former postal counties. This is a list of postcode districts in the United Kingdom and Crown Dependencies. 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]
This is a list of post towns in the United Kingdom and Crown Dependencies, sorted by the postcode area (the first part of the outward code of a postcode). Postcode area
The postcode area is the largest geographical unit used and forms the initial characters of the alphanumeric UK postcode. [1] There are currently 121 geographic postcode areas in use in the UK, and a further 3 often combined with them which cover the Crown Dependencies of Guernsey, Jersey and Isle of Man. [2]
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 inward postcode is always formatted as NAA. A valid inward postcode never contains the letters: C, I, K, M, O or V. The British Forces Post Office has a different system, but as of 2012 has also adopted UK-style postcodes that begin with "BF1" for electronic compatibility. United States: 1 July 1963 US: NNNNN NNNNN, NNNNN-NNNN
The ONSPD is available for free download in comma separated variable (CSV) format and ASCII text (TXT) formats from the ONS Open Geography Portal. The supplied file contains multi CSVs so that postcode areas can be opened in MS Excel. The ONSPD reflects current and terminated postcodes using information supplied monthly by Royal Mail. It ...
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 ]