Tap on (This is the key menu for carrier settings).
Some network carriers, including certain US Cellular plans, may restrict this menu. If the option is grayed out or missing, the carrier's "Network Default" is likely enforced, and you may need to use manual codes or contact US Cellular support to enable it. 2. How to Hide Caller ID for a Single Call (Manual Codes) s9 us cellular hide caller id
Select .