Who called from 5627312219

I really do not understand wherefrom this number originates, how does he know my number. is it genuine or fake.

This phone number called me in Canada on my Skype phone number. Did not answer. Weird.

I received a call for a code I did not need.

I  received a call from this number giving me a code , and I have no clue what it'says for.

Received a text for a whatsapp code.  Then a phone call from the same number.  They left a message in Spanish.