Canadian here. The CRA has called me about their criminal warrants for my arrest many times. The Chinese consulate keeps telling me to call them back.

But these are all on my work-phone and government agencies don't pay taxes anyway.

My personal phone has been relatively safe for unknown reasons that I'm happy about.

Not canadian but used to travel there a lot and had a nice collection of prepaid sim cards. Every new prepaid line I registered got tons of calls from debt collectors, to telemarketers, to scammers.

So yeah it happens, though probably less blindly than US and more from information sharing.

Numerous calls here. Lately SMSes have started too. Sometime back, even WhatsApp messages from Philippines, but that spam stopped pretty quickly.

Does Google voice work for Canadian numbers?

I don’t believe you can register a canadian number. You can sign up and use it as a voicemail though I think.

If you are asking whether you can call and be called by canadians for free from american gvoice, the answer to that is yes.