A new postcode directory is being distributed to every household on the Island.
Isle of Man Post says the stand alone reference guide lists every residential and business address and, in future, postcodes will no longer feature in the back of the telephone directory.
The guide is being sent to 40,000 addresses, to encourage people to use their postcodes.
Isle of Man Post says postcodes make a significant difference to the speed and efficiency of how mail is processed at the Douglas Mail Centre.
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