Got a call from this number, but when I called this number, the provider's auto message says this number is not in used.  How is this possible?

I got this phone number just now, but what's strange is that the phone did not ring actually, but rather I got a message (I have this option) about the missed call with this number.

902 is Nova Scotia. Is PEI the same??? How embarrassing!!We've been getting these calls for weeks now.Also, we've been getting harrassed by Bell mobility sales calls, even though we are on the list to NOT call.  Guess who has the contract for the do not call registry? Yup. Bell.

Just got a call from this number, and the man "Justin" claimed to be from Windows Online Help Service and directed me to go to my computer. He insisted that he could "fix my error reports". Being that I don't have Windows....

I got a call from this number twice now, once at 9 pm and the next day was at 8:30pm and when i answer, not one is replying or say anything!!!

Missed call from this number at 8:30 this evening. Also had someone call me at noon trying to offer a solo mobile contract...that number was 975 986 2435.