This is a scam. I had these calls on my land line and now they're targeting mobiles. They're phishing for credit card numbers. I have no vehicle, so there's no way that they could be using a purloined warranty registry.
I called them back and gave them a piece of my mind.
I will be going out right now to purchase a sports whistle to deafen these scumbags on future intrusions.

I just got a call from this number, but didnt answer.
I also got a call from 416-000-9468 yesterday.
It's all [***].

Blame facebook.
They've sold cell phone numbers people have listed in their profiles.
They've violated consumer trust.
F*** facebook.

Just called my Dad's cell phone.  I know for sure he has never put it on Facebook.  Been getting a lot of calls like this lately...

Just called my cell (Rogers) and left a voice mail.  No idea where they got my number, i'm pretty careful about adding it to databases.

This number called my twice today. It gets really annoying. If my phone was not on vibrate, it would have gotten my phone confiscated at school since we are not allowed to have phones in the building.