Several calls to my registered (do not call) mobile, no human on line.  Have rec'd in excess of 15 calls during the last 2 weeks.

BOGUS.

I'm in the same situation - recevied 1-3 calls a day for the past two-ish weeks, up to as late as 8 p.m. MST. Never anyone on the line, never a message. When I return the call, the message says Comcast is closed and to call back during normal business hours, even though I'm calling during their 'open' hours. Very frustrating. Comcast knows nothing about the number so I'm not able to figure out how to stop the calls.

this is getting quite obnoxious

Caller with strong Hispanic accent alleges that he's from Comcast.  Inbound call to my residence, after 8:00 p.m. Pacific time.  Didn't listen to any of the sales pitch.  Hung up on this POS.

He has called me twice- I never picked up because I get so many " 1-800" calls during the day.