This number left voicemails saying from IRS. Advised not to ignore message and call back immediately. I had to call 3 times to get someone I could understand however I did pick up they were saying I had a large outstanding debt with the IRS. I do not have any outstanding debt issues with the IRS. On the third call the man answering stated he was a supervisor and when I asked him to identify himself and his organization he hung up on me. I have reported this to my phone carrier.

There is a fairly common IRS or "tax scam" being practiced by scammers on both Canadian and USA residents.
USA tax payers should read this:
http://www.irs.gov/uac/Newsroom/IRS-Reiterate ... -Telephone-Scam

Short answer:
The IRS never initiates a contact via phone.
They always send a snailmail first.

Educational post:
This scam is also described as scam #11, here:
http://phonehelp.2truth.com/facts_rev.html

Remember to return here, to 800notes.com, after you look at any of the information at that site, either to post more information, or to let us know you avoided the scam, or to read any further information about that number that others may post.

I got several calls from this number and another number stating they are the IRS. I don't have any problems with the IRS. Th IRS would never call and leave a message and I got several calls today whic is Saturday,the I R S is not in on weekends. These calls came from DC and San Francisco.

Four calls so far today. Claiming they were from the IRS. I have no problems and knew it was a scam. I just want them to stop calling. The IRS does not call. They send mail.

Thanks a lot for your review. It helped me to ignore this call. They called me too and left a message. It worried me, but now I realize it's a scam.