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A UK Post Code is made up of a number of different parts like these; BS12 6LS or N1 1DF. All together these are known as Post Code Units. Only really large buildings or large mail users have an individual code unit all to themselves. Usually code units are shared between a number of different premises.
It is worth to note at this point that in a built up area an individual Post Code will represent a handful of houses all within a few 100 metres of each other whereas a Post Code unit in a remote or rural area may represent a group of dwellings many miles apart.
CO4 9EA
CO4 9ES
CO4 9ET
CO4 9EU
CO4 9EW
CO4 9EX
CO4 9EY
CO4 9EZ
CO4 9FF
CO4 9FP
CO4 9FR
CO4 9FU
CO4 9FW
CO4 9FX
CO4 9FY
CO4 9FZ
CO4 9WH
CO4 9WJ
CO4 9WQ
CO4 9WT
CO4 9WW
CO4 9XA
CO4 9XZ
CO4 9YJ
CO4 9YL
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