They called again and my mom picked up, luckily I was home and told her to hang up and I finally said mom hang up it's a scam.The lady said my parents name and then said I'm calling on behalf of comcast.  We hung up then.Right after that another number came up as +1 800-860-0412.  On the caller id it says 800 number.This is getting agitating, because I've been getting a lot of these calls.

called me, but i didn't answer, did not leave message, glad to know it was scam

The reason you are unable to call back is that each of these callers is actually caller from a real number but they are Primus customers, so their real number actually gets re-routed through one of many Primus main numbers.My father has Primus and whenever he calls me the caller ID shows one of the many Primus numbers, usually I get (416) 646-3601, but I have also seen others.So basically if you signed up with Primus today as your phone provider you too could make calls randomly to people and they would get a Primus # on their call display.It is so frustrating and Primus should not be allowed to mask the caller ID number.

They called me in Sweden too! I didn't answer in time tho, good thing too...

hey about this comment:

"They said that they were calling regarding duct cleaning services and i knew that it was a scam!! Right after that--they called again ani came up as unknown nam and number."

I yelled at them to remove me from their calling list. He called me right back with a private name and a private number and said, "i just wanted to say f*** you." and i told him the same and hung up, he then proceeded to call me back multiple times (5-10 times) and was making sounds as if he was masturbating. He called from several different numbers, so watch out for these:

(416) 750-3447
(416) 852-7169
(416) 598-9326

I'm pretty sure their are many more. He also calls from 647 numbers. He also has a south asian accent... did he for any of you? I'm actually getting quite frightened, that i'm being harassed by some freak who could live in india for all i know. I don't know what to do; hopefully the cops can help us out.

This number called my cell phone  this evening at 8:45 pm, I had missed the call so I called it back, all I got was a dial tone.