Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you may not be able to execute some actions.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
What do you mean by a Valid no.?
A valid phone number is the one that is issued by any carrier in the world to its users, including satellite numbers. It does not necessarily mean that the number is currently reachable.