Got a call from this number. No one on other end. When i called the number back, a recording said "call is no longer in service". How can a number be no longer in service if they just called?
THis is a company that "verifies" phone numbers using a computer. If you answer, your number goes on an "active" list, and if there is no answer, then it doesn't.
Pays to have caller ID and NEVER answer a number you don't know who it is. That's what answering machines are for. Set them to 6 rings. That weeds out almost all of these - as the computer gives up at 4 rings.