Hiding your mobile phone number is the ideal way to make anonymous phone calls and protect your identity. By dialling a few additional keys, you will be able to call somebody while keeping your mobile number secret.
Bring up your dialling screen on your cell phone.
Dial 67 followed by the phone number. There should be no spaces between the 67 and your number.
Send the call. Your number is now hidden.
Call your cell phone provider to set up a permanent hiding solution if you do not want to dial *67 before each call. This may cost extra money each month.
Some phones block hidden numbers from calling, so be aware that you may not be able to get through to every number dialled.