I get a couple calls a day on my cell phone.  Google shows this as a plumber in CO, but I am 2,000 miles away and have never called there.  They never leave a message and when I call back all I ever get is an answering machine with a guys name, no business, and they never return my call.  I just reported to the phone company as a crank caller.

Get a call from this number every few days.  Never leave a message.

Just got the call from this number.  Left a message that he is with IRS Enrolled Agents.  However, after reading the top no better then to call back.  Not sure what his deal is but IRS is being used.

Just got a call from this number, his name was mike Carlisle. He presenter the IRS GROUP something, im not sure i trust this guys, but i would be aware of providing any information to them about your business seem to me like a fake information.

Just received this call at work because we do have a tax lien out there on public record so we have been bombarded with calls and some of them can be down right threatning but if they have legitimate business with us they would have the proper names and/or extensions of people within the organization. We do not divulge ANY information to random phone callers and if it is someone of the legitimate kind I'd rather be wrong and protect the company rather than divulge information to anyone that could harm us. It is my job to screen calls not provide information to them they should have called 411 for that.
Mr. Carlisle stated he didn't look far enough into the file and would get that information and find out-okay I'll be looking out for him to call back and when he does I'll be sure to transfer him right over......right over into a dial tone.