Would you want to be incognito when sending call through to someone? It's simple, all you have to do is to add the combination of #31# before a dialed phone number.
The receiver of your call gets the incoming call, but the number is not shown on the screen. How to hide number on Airtel
Add #31# before any number if you wish not to reveal your personality until the receiver picks up. How to hide number on MTN
For MTN users, the #31# code is enough to make a private call. Although not available for all devices, there is another way to make private calls. Go to <Settings>. Then, click on <Call Settings>. There you will see <Show My Caller ID>. Tick it, and here you have your phone number hidden. How to hide number on 9mobile
Pay attention to the fact that it concerns local calls only. International ones are not likely to be hidden due to security issues abroad.
Try this variant <Settings-Show My Caller ID> Don’t forget to tick off <Show ID> when you need not hide your number anymore. It often leads to confusing situations when a caller forgets to turn off the function.