Figures obtained from the Commission for Communications Regulation (ComReg) indicate that, as of 25th September 2006, there are 4,505 mobile telecommunications sites in Ireland. This figure includes both the traditional stand-alone masts and the sites that are located on buildings or other support structures. The location of these mobile telecommunications sites is madepublicly available on ComReg's website, www.askcomreg.ie. ComReg advise me that detailed statistics on the number of shared telecommunication sites are not available but they estimate that there are at least 250 shared sites in Ireland.