To block your number on iPhone:
1. Go to Settings, Tap Phone
2. Press Show My Caller ID
3. Use the toggle switch to show or hide your number
Note: Verizon Wireless does not allow this feature
To block your number on Android:
1. Open the Phone app, and open the Menu
2. Select Settings, then Call settings
3. Click on Additional settings, then Caller ID
4. Choose “Hide number” and your number will be hidden
To reverse this feature on Android, choose “Show number” or
“Network default”
Manual Dial Number Blocking
Dial *67 and then the number as you would normally