claimed to be a duct vacuum service ... Green Clean air duct cleaning ...  clear violation of do not call list

Has called once a day for the past week. Claims to be a duct cleaning operation and only leaves a partial message. On the DNC list so this is a plain violation.

received call from "david" calling about windows computer intrusion on 9/30. 2 calls received
on 10/1/14. phone id said "private caller"

Called here today 11/12/2014 at 5:30 PM and no message was left. Called ID says "Air Duct Clean 240-318-1461. This call is coming from Aspen Hill, Bethesda, Frederick are of MD.
Since I haven't done any business with that company in the past nor have I given them my permission to contact me, they are clearly violating the a DNC list.

"David", claiming to be from "Air Duct Cleaning Professionals" tried to tell me I could win a free holiday. I informed him I was on the National Do Not Call Registry and that I'd report him to the FCC. I've never done business with this company, nor made inquiries. It's a clear violation of the DNC.