Dial *67 before the phone number you want to call
On some phones or carriers, use #31# before the number instead
Check your phone’s call settings for “Show my caller ID” or “Caller ID” and turn it off
Use your carrier’s caller ID blocking feature if available
For a permanent block, contact your mobile carrier
For a one-time block, enter the blocking code before each call
Note that emergency services and some toll-free numbers may still see your number