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.

This is seriously annoying, today I got a call from +40555600842 on my cell phone at 11:09, I was asleep, luckily with my ringer on very low, obviously I didn't wake up to answer it, at 11:10 and 11:11 I got calls from a private caller, then an unknown number at 11:12, at 11:14, our friend at (416) 646-3601 called, and then at 11:15, a caller from 662-505-2872, I finally woke up at 11:18 when another private caller called. At that time I looked at my phone and saw all the missed calls, no messages though. How do these people manage to find my phone number, and why do they feel that calling 7 times in 7 minutes is going to get a response?
I tried to trace the numbers, the unknowns and privates didn't work out, but the first call was from a caller calling through Romtelecom in Romania, but calling through the provider from outside of the country. I literally don't know any person or have any connection to anything remotely Romanian. The area is Caras-Severin, which includes Transylvania. Perhaps it's Dracula.
The next number that came up, the 662 number originated from Mississipi or Memphis, Tennessee. I'm a Tennessee Titans fan, but otherwise I have no link to either of these places either.
Finally, of course our favourite caller, the one at 646-3601, called in between.

Has anyone received a REAL phone call from any of these numbers?

I received a call from the Duct Cleaning company. A man with a south asian accent is always the one who calls. recently he has started calling from the number (647) 478-3163

Collecting on behalf of Canadian TIRE...Collection company!!

this number just called me ?, i ttied calling it back but its only a dial tone.. wtf  who is these fu**ers anyway

Do they keep notes on who sounded like they answered last time?Why hang up without saying anything?What a waste of time.What is their motivation?Are they somehow making money?Do they get the occasional dummy who gives them money?Or are they insane?I don't understand.