Glossary
Outward code
The outward code is the first half of a UK postcode and identifies the postal district, for example SW1A in SW1A 1AA.
What is outward code?
The outward code combines the postcode area (one or two letters) with the district number. It directs mail to the correct sorting office.
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Inward codeThe inward code is the second half of a UK postcode and pinpoints the delivery point, for example 1AA in SW1A 1AA.PostcodeA postcode is an alphanumeric code used by Royal Mail to sort and route mail to a small group of addresses in the UK.Postcode areaA postcode area is the one or two letters at the start of a postcode, such as M for Manchester or EH for Edinburgh.