List of British postal codes
The British postal system runs on a system of alphanumeric codes, or Postcodes. Normally the first two letters of the postcode denotes the main sorting office through which the post for that place is filtered before being distributed to individual addresses. The only exceptions to this rule is with postcodes for London, Birmingham, Glasgow, Liverpool and SheffieldFor a list of British Postcode Prefixes (including overseas posessions), see List Of British Postal Codes on Wikisource
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