Claiming that I'm being sued by the IRS, the message was obviously created by a non-native English speaking person. Phone companies should be forced to block use of this number in Caller ID if they're really from another number, and block it altogether if they're actually calling from this Colorado number. I haven't called them back at the number yet so don't know if they answer. By the way, this site's list of call types needs to include "Scam" besides all the legit categories!