In Reply to: Thanks Mike . . . posted by Wondering on August 15, 2006 at 09:35:35:

Why do you want to know the frequencies (the days when one could listen to cellphones on a scanner are long gone) ??

There are basically three bands used by Irish mobile phone operators
900 MHz (gives better coverage over difficult terrain or inside buildings) 1800 MHz (more capacity i.e. can handle more calls simultaneously in any given area) and 2100 MHz (used for 3G services)

The main three Irish networks (02 Vodafone and Meteor) are dual band meaning most of their masts will transmit on both the 900 and 1800 MHz bands although in rural areas some may be 900 MHz only and in Urban areas some may be 1800 MHz only) AFaIK there are two 3G operators in Ireland both of these would use 2100 MHz.

In the UK (including NI) Orange and T-mobile/Virgin are 1800 MHz only 02 and Vodafone use both 900 and 1800 and 3UK are 2100 MHz. Signals from UK and Irish networks overlap for a few miles in most border areas. In theory it is possible to get the UK (and/or Manx Telecom) networks on some mountaintops along the East coast as well !