Who called from 6467556002

I'm Malaysian, but I don't get it how this guy called me, I missed the call.
I really wonder who that guy is so I googling, n now I know what they are.
Thank y'all guys for this information!

I can confirm, the number called me after I applied for Canadian Visas

This number from usa

Got a call from this number after checking out a canadian embasy website advertised on google. The site was a .org but i figured it was a scam after they requested money in order to proceed with an application

Governments don't use .org.  Here is the official Canadian Government web site:  https://www.canada.ca/en/index.html

Those are ads at the top of both Yahoo and Google and can be paid for by anyone in order to trick people.