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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.
L40 6HD
L40 6HF
L40 6JB
L40 6JG
L40 6JH
L40 6JJ
L40 6JL
L40 6JN
L40 6JP
L40 6JQ
L40 6JT
L40 6JW
L40 6JX
L40 6JZ
L40 6LA
L40 6LH
L40 6LN
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