If you block your caller ID you hide your own phone number when making calls. We show you how to do it on Android and iPhone.

How to block caller ID on Android

When using an Android smartphone, you find the option to block your caller ID in the call settings. Please keep in mind that every manufacturer uses different menu layouts. Where to find the right option might therefore slightly deviate from the following steps:

First, open the “Phone” app
Tap the menu button in the top right hand corner. It is usually displayed as three dots.
Open the settings.
Now open the menu “Supplementary Services”.
Tap on “Show caller ID”.
Select “Hide number” to block your caller ID
If there is no such option available, this could be connected to your SIM provider. Some providers block the option to hide your phone number for outgoing calls.

Hide phone number on iPhone

On your iPhone, blocking your caller ID works in a similar way. Follow these easy steps:

Open the Settings app.
Open the category “Phone”.
Then tap on “Show My Caller ID”.
You find an entry of the same name. Tap on “Show My Caller ID” to toggle the option. Your phone number will be hidden when the option is disabled.

Block caller ID for only one call

Switching the option of blocking the caller ID on and off is easy but takes up some time, nevertheless. If you want to hide your phone number very occasionally, you only have to remember a short code.

You block your caller ID for just one call when you use the code *67 before the number you wish to call. This works on both, Android and iPhone.
Dial, for example, *67012345678.
With AT&T phones you’ll need to use another code: #31#
Don’t forget that this will hide your number for this one call only.

Keypad code for blocking caller ID for an individual call (c) Isabell Gaede

Block phone number on your home phone

On your home phone you also have the option to block your caller ID. Although it’s different depending on your provider.

If you have an account for the website of your provider, it’s very likely that you can block your caller ID with just a few clicks.
Also, you can dial *67 before the number to hide your ID for this one call, just like we showed you in the chapter above.
If you’re using a landline, you usually will have to call customer support to have the settings changed.

How to block caller ID