Call your carrier and request “block caller ID” for your line
Use your carrier’s web or mobile app to enable “Caller ID blocking” or “Hide number”
Dial *67 before the number (example: *67 5551234567)
If available, enable “Hide my caller ID” in your phone settings
For landlines, use the phone’s call-blocking feature or a service from your carrier
For apps/VoIP services, check the app’s settings for “Caller ID” or “Hide number” and enable it
Use a temporary/virtual number service that supports outbound caller ID masking
If the recipient’s number is listed as “private” or “anonymous” in your dialer settings, select that option before placing the call