How do you block your cell number when calling someone

Blocking your number for the duration of a call.

Follow these simple steps to block your number. Note: This will only block your number for the duration of the call. And this method will not work for toll-free or emergency services numbers.

That’s it!

When a person receives your call, the word “Private,” or something similar, will appear on their Caller ID. Want to block your number by default? Check out our Device Support pages for instructions.

Rather block other numbers from reaching you?

T-Mobile has a wide selection of call protection tips and services you can use to block unwanted calls and texts.

When you make calls, you can hide your caller ID from people you call. You can also decide which phone number you want to make calls and send messages from.

Hide your caller ID for all calls

Important: When you hide your caller ID on one device, it’s hidden on all devices with the same Google Voice account.

1. Open the Google Voice app .
2. At the top left, tap Menu
   
   Settings.
3. Under “Calls,” turn on Anonymous caller ID .
   • If you want to show your phone number to people you call, turn off Anonymous caller ID .

Hide your caller ID for individual calls

If you don't hide your caller ID for all calls, you can temporarily hide it for individual calls.

1. Open the Google Voice app .
2. At the bottom, tap Calls
   
   .
3. Enter the prefix used to block your caller ID.
   • This prefix depends on the country or region your Google Voice number is from. For example, if your Google Voice number is from the US, your prefix is “*67.” You always use the same prefix for all numbers you call.
4. Enter the phone number.
5. Tap Call 
   
   .

Choose which number shows on your caller ID

If you have more than one Google Voice number, you can choose which number shows when you make calls and send messages.

1. Open the Google Voice app .
2. At the top left, tap Menu Settings.
3. Under “Outbound caller ID,” choose the phone number you want to make calls and send messages from.

To block your mobile phone number on a per-call basis, dial #31# before each phone number you call.

To permanently block your number use your Call Settings menu.

Get step-by-step instructions for your device on how to hide your caller information.

If you have permanently blocked your number, you can unblock it on a per-call basis by dialling *31# before you dial each phone number.

Does * 67 work on a cell?

Does * 67 still work?

How do I block my number when calling someone on my cell phone?