To hide your caller ID on a Samsung phone, open the Phone app, tap the three dots (More options) > Settings, then go to Supplementary services > Show your caller ID, and select "Never," though you can also choose "Network default" or "Always". For a single call, you can dial *67 before the number to temporarily hide your ID, as noted by CallHippo and Verizon.
To hide or show your caller ID:
Change your caller ID on an Android phone
To block your number from being displayed temporarily for a specific call: Enter *67. Enter the number you wish to call (including area code). Tap Call.
Open the Phone app. Open Settings > Supplementary services or Calls. Under Caller ID, select Hide number or Never. Your number will be hidden for all outgoing calls.
No, *67 doesn't work in Australia; the correct code for per-call caller ID blocking on mobile phones is #31#, while 1831 (or sometimes 1832 to show your number) works for landlines, but you can also set a default in your phone's settings or use carrier-specific codes like Telstra's. For hiding your number in Australia, use #31# before the number, or check your phone's settings to block it by default for all calls.
How do I block my number?
Enabled: You can display your Caller ID for a single outgoing call. Press *67, call the destination phone number, then press #. Disabled: You can hide your Caller ID for a single outgoing call. Press *82, call the number, then press #.
Hide your caller ID for all calls
Open the Google Voice app . Settings. Under 'Calls', turn on Anonymous caller ID . If you want to show your phone number to people that you call, turn off Anonymous caller ID .
While your Android might be a little different to the one on screen, the steps to turn off caller ID will be similar. Open the Phone app, tap on the 3 dots, and then tap Settings. Select 'Never'. Caller ID is now turned off for all calls you make – people will only see that a private number is being used.
To hide your caller ID on a Samsung phone, open the Phone app, tap the three dots for Menu > Settings, then go to "Supplementary services" (or "More settings") and select "Show caller ID" or "Show my caller ID," choosing "Hide number" or "Never" to make your number private on outgoing calls.
Yes, *67 still works in 2026! If you dial *67 before a phone number, it hides your caller ID, so the person you're calling sees “Private” or “Blocked” instead of your number. This works on both iPhone and Android devices.
You can hide your number from being displayed when you make calls. This is known as CND blocking. To permanently block CND on all calls from your phone, contact your telco. To temporarily block caller ID on a call-by-call basis, dial 1831 (or #31# from a mobile) then dial the number you are calling.
In the United States, the *67 prefix is commonly used across most carriers, including industry leaders like AT&T and Verizon. To implement this, simply dial *67 on your keypad, followed by the number you wish to call. This results in your phone number appearing as an unknown caller on the recipient's phone.
What does Secret Mode do? When in Secret Mode, no history data is recorded by the browser and all cookies are deleted when you exit. So once you leave secret mode, you won't be able to look back and see what sites you were on.
The Samsung secret code *#9900# opens the SysDump menu, primarily used to delete temporary junk files (dumpstate/logcat) to free up space and potentially speed up your device, and also offers options like resetting battery statistics for better performance. It's a shortcut to system functions for maintenance, allowing users to clear logs and manage battery data, but should be used with caution as it accesses system-level functions.
Find "Caller ID"
*67 is a calling feature that allows you to hide your phone number when making calls. When you dial *67 before a phone number, your caller ID is blocked, and the person you are calling will see "Blocked," "Private," or "Unknown" on their caller ID instead of your actual phone number.
This Vertical Service Code, *82, enables calling line identification regardless of subscriber preference, dialed to unblock withheld numbers (private callers) in the U.S. on a per-call basis.