Matching two lists of postcodes

Hi,

I have a list of postcodes that relate to actual addresses (list 1) and another list of postcodes that are broken down by which areas of the city they belong to (list 2)

I would like to be able to use a function to match/show which areas of the city postcodes from list 1 are in by comparing against list 2.

Can anyone help me with this?

I have attached a small example to show the type of data I have.

Thanks.