I received a call from this number and a guy with an Indian accent said that my computer is at risk, You can get more information about this types of scammers here:
https://www.theguardian.com/world/2010/jul/18/phone-scam-india-call-centres
214 748 3647 = (2^31 - 1) = the maximum value of an integer in a lot of programming languages. Why do I mention this? Because it's pretty likely you were not called from 214 748 3647 but rather any number higher than that.
Interestingly enough this phone number is associated with the address of my next door neighbour. This is a condo building in Toronto. And by the way it is illegal to run a business from a condo. So avoid at all costs. Scammer Scammer Scammer
It is the highest integer in a 32 Bit online game so for example in plants vs zombies you get something thats called the tree of wisdom,it MAX height is 2147483647 and if you try to exeed that itll turn back into a sapling and you will have to feed it 2147483647 times more
i tried to sign up for something and apparently this number and another email address are being used with my name and address... I gave this number to the police for identity theft. Report please, if you get a call from this number.