This article discusses a few ways you can make your number private so that when you call someone, your phone number will not be displayed on their caller ID.
Make Your Phone Number Private on Android in 2021
One of the quickest and easiest ways to hide your number from the person you are calling is to use the *67 trick. When you do this, your number will appear to the recipient as “Private” or “Blocked”. However, you will have to do this manually for every call you make, as you cannot automate it.
Some Android devices and mobile carriers offer the option to hide your number by default, eliminating the need to dial *67 every time you make a call. Here's how to block your mobile phone number using your phone's built-in Hide number feature:
Open the Phone app (on some devices this is called Phone).
