Eircodes are assigned to new property addresses using a valid postal address and verified geo-locations. All postal addresses, geographical addresses and geo-locations are provided to Eircode from authoritative sources, namely An Post and Ordnance Survey Ireland through their subsidiary company An Post GeoDirectory. An Post collects information on all new and existing buildings, as well as changes to existing addresses, and Ordnance Survey Ireland provides the geo-locations for these buildings.
Eircode does not change existing postal addresses and the Eircode can be simply added to the address normally used for the property. This address can be the most commonly used address, the postal address or/and the geographical address. The free to use online Eircode Finder www.eircode.ie which remains very popular with the public with over 93.5 million lookups since the finder went live, provides both the geographical and postal addresses for properties in the state.
Householders who have queries relating to the postal address of their property can contact An Post at: correctaddress.anpost.ie or customer service 01 7057600. In the case where An Post makes changes to the address, the updated information will be provided to Eircode by An Post GeoDirectory.