The mobile phone network consists of a number of mobile phone base stations and masts that are located throughout Ireland. For a detailed list of where mobile phone masts are located in Ireland, please visit ComReg's Siteviewer tool which provides a map showing the location of all mobile phone masts in Ireland.
Coverage for different Operators
Each mobile network can have a different coverage area, depending on the number of mobile towers in use, the local terrain and technology used. It is important to check that the service you are considering has good coverage where you expect to use it most. Ask your mobile operator if they can provide you with coverage maps that can assist you in determining how well the areas that are important to you are covered. Alternatively, check with your friends and family who use the same mobile phone company in the areas you want to use your phone, to confirm that the coverage is adequate in that area.
Other Related Information
The acronym 'GSM' stands for; "Global System for Mobile Communications". This is a standard for digital cellular communications in use in over 200 countries/areas worldwide.
Mobile phone coverage is provided by dividing an area to be covered into a number of "cells", each cell containing a base station that is linked up with base stations in other cells. The diagram below indicates how an area of Ireland is divided into cells. When you make your mobile phone call, digital technology carries the call to and from the base station that is located closest to your position, via the network to a base station that is closest to the recipient's location.