Good Luck to everyone with this Caller. I have had them calling me almost every day for the past several months. And don't see any end to it. I contacted my cell phone provider, and they told me that there was absolutely nothing that could be done about this. I don't know if anyone living in the USA has any other options with shutting them down or blocking them. I'm in Canada by the way. I did pick up a free app for my Windows Mobile phone called Call Firewall, and at least with it, when that number comes up, it disconnects them on or after the first ring. It also has a feature to send an SMS message, but since this number appears to be disconnected when you call it back, I haven't bothered with doing this. It likely wouldn't help anyway; as this caller is attempting to scam anyone that he actually reaches on the phone (see some of the other posts). Perhaps an old Irish curse would work on this person or people.
May the Curse of Mary Malone, and her twelve blind illegitimate children, chase them so far over the hills of damnation, that the lord himself couldn't find them with a telescope.