somebody called from this # to my office phone #. since i was not in the offcie at that monment when came back the voicemail box indicates a message but when i checked there is no any sound. when called back to this # a voice tells this # is not in use. that is strange enough!

Usage of CPE (Customer Provided Equipment) means that the caller-ID information has been set by the caller. ?Thus, they can call you, while they are showing a "not-in-service" number.  So, because the number is "unassigned", no telephone-company (Bell, Telus, Shaw, et cetera) can route the number back to them.

Want to block this number for good...Thx  This scam...

I got a call from this number at my work number.  Got a recording saying it was an important msg and I won 2600 air miles and to press 1 to claim them.  I hung up, but perhaps next time I'll play with the person on the other end for a while.

Received call from this number on my direct line at work.  No one there.  Called the number back to hear an automated message say "we are sorry, this number is no longer in use".  How is this possible within a two minute time span!!!

Called my cell too. Thanks to other posters on this number, I didn't pick up.