Who called from 6785594636

Where is it from?

I got call twice from this number (+678-559-4636), first time i answered but no one speak. 2nd time, rings twice and then hang. Display shows +678 559 4636 Vanuatu

This number is calling on my mobile nearly every day and just have it ringing one time and haning up I want that to stop

Don't Call Back. Here you go:...
http://www.newshub.co.nz/home/new-zealand/201 ... here-s-why.html

Got these calls daily so looked it up online. Seems to be a scam http://www.newshub.co.nz/home/new-zealand/201 ... here-s-why.html