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M90 1QX is the post code for Manchester Airport
The country code and area code of Manchester, United Kingdom is 44, (0)161.
The airport code for Manchester-Boston Regional Airport is MHT.
A Manchester number beginning with 0161 478 can be anywhere in the Manchester area.
01616 is not an area code itself, but 0161 is the area code for the Manchester area in the UK.
All UK numbers beginning 0161 (including 0161 6......) are Manchester.