57 - Traces the number of the last incoming call received. *60 - Prevents calls from select phone numbers. *67 - Block phone number on Caller ID systems. *69 - Redial the last number that called you.

You can block all calls from private numbers and block specific numbers as well. How to block a number on a Samsung Galaxy 1. Start the Phone app. 2. Tap the three dots at the top right of the ...