In Phone company terms, what does the message: The number you have dialed is not in service mean??.

Question

just trying to understand the difference is all

Answer 1

The number has been disconnected.  Either because the owner of the number wanted it to be or because the bill was not paid.

Answer 2

Someone isn't paying their bills, the phone has been shut off, or the number hasn't been used yet.

Answer 3

It means that the number is no longer or has never been a working number./