For the first time ever homes and businesses in the country will have a postcode.
2.2 million homes and businesses across the country will be receive their new code in the post in the coming weeks.
Current postcodes like Dublin 1 becoming D01, while Wicklow gets Y.
The Eicode site is now live, and there is a limit of 15 searches a day for people to look up addresses.
Find your new postcode here