Said they were calling from Wonder Vacations and that I was a grand prize winner. they gent with an australian accent said he was in TO. Is this a TO number? How do i find out this is a scam.

This is a fraud campaign currently active in Canada using a series of Iristel VOIP numbers.  The objective is to obtain your credit card number and drain your account.

If you attempt to "opt out" your number will be confirmed as live and added to a suckers list for repeated future calls.

this is my phone number and it was a prank on my friend Mike so not a fraud alert hahah