Hiding your number for all outgoing calls

[Kakashi2020]

Sometimes you don't want your mobile number to be seen. There's a short way of hiding your number for all outgoing calls.
Just type this for Android and iPhones:

#31# "mobile number"

This will turn on/off your number id.

*#30#

This is one of my favorites haha disables all outgoing calls.?

*33*#

 

[Rodney Olson]

I am curious how it will display on screen of receivers. It will be a blank screen?
And which number needs to put in this #31# "mobile number"? my number or receiver?

 

[Kakashi2020]

I think you have to put your number in.
On how it will appear it depends on your carrier here sometimes it says "Secured Number"
I've attached some more codes for android and iPhone