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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.
CM1 4PS
CM1 4PT
CM1 4PX
CM1 4PY
CM1 4PZ
CM1 4QB
CM1 4QD
CM1 4QL
CM1 4QN
CM1 4QP
CM1 4QQ
CM1 4QR
CM1 4QS
CM1 4QT
CM1 4QU
CM1 4QW
CM1 4QX
CM1 4QY
CM1 4QZ
CM1 4RA
CM1 4RB
CM1 4RD
CM1 4RE
CM1 4RW
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