The N (Northern) postcode area, also known as the London N postcode area,[2] is the part of the London post town covering part of North London, England. It is a group of 25 postcode districts which covers around 17,429 live postcodes.
The postcode area originated in 1857 as the N district of London. In 1917 it was subdivided into 22 numbered districts.[3] The Northern head district was designated as N1 and the rest of the numbering followed the alphabetical order of the other districts' main names. Most districts include local areas known by their own specific names (see table below). The official post town for all N postcodes is LONDON; district names do not form an essential part of postal addresses.[2]
^ abRoyal Mail (2004). Address Management Guide (4 ed.). Royal Mail Group.
^"Postcodes"(PDF). Archive Information Sheet. The British Postal Museum and Archive. Archived from the original(PDF) on 20 March 2009. Retrieved 24 March 2010.
^"R49 Product Update News". Geoplan Spatial Intelligence Limited. February 2010. Retrieved 25 September 2012.
^"Non Geographic Codes"(PDF). Royal Mail Address Management Unit. July 2012. Archived from the original(PDF) on 16 September 2012. Retrieved 25 September 2012.
^London Postcode and Administrative Boundaries. Geographers A-Z Map Co Ltd. 2013.