Suppress phone number on iPhone – tips and tricks

If you are planning a call with the Apple iPhone where you do not want the person you are calling to see your phone number, you can use various options to hide your phone number. the Hide phone number on iPhone on the one hand via the settings of the Apple smartphone, on the other hand via a trick when dialing a number or creating a contact. Below are all the tips and tricks for anonymous calls on iOS. In this way, your number or your name will not be shown on the display of the person called.

Hide phone number on iPhone (Settings)

If you want to suppress the phone number for all calls on the Apple iPhone, you can do this via the system settings. The function to be deactivated there has been the same for years, so that you can use it regardless of the iOS version You can use the step-by-step instructions below on old and new devices - whether iPhone 6, iPhone 6s, iPhone 7, iPhone X, iPhone 11, iPhone 12, iPhone 13 or iPhone SE. Here are the individual steps:

  1. Opens the Apple smartphone Settings
  2. Scrolls to the menu item Call Us and taps it
  3. From the "Calls" section, select the item Send my caller ID from
  4. If you use dual SIM, you now have to Primary or Secondary choose
  5. Now disable the "Send my caller ID" slider so it's greyed out
Suppress the phone number on the Apple iPhone - you can do this in the settings with the phone options and deactivating My caller ID.

Suppress the phone number on the Apple iPhone - you can do this in the settings with the phone options and deactivating My caller ID.

Suppress iPhone number (single calls)

If you use the setting shown above to generally withhold the caller ID, then no other party will see your number. But if you call your grandmother, your best friend or other people close to you, you usually want them to know right away who is on the phone. You can also leave the slider green and suppress the iPhone number for individual calls.

Because with individual calls you definitely want to suppress your own phone number, for example for calls to hotlines, authorities, shops and other places that may collect data and use the phone number for unsolicited callbacks. The trick here is to dial the number using the phone app's number pad, prefixing it with #31#. This GSM code withholds caller information. These are the individual steps:

  1. Opens the Apple smartphone Phone app
  2. Select the tab for the below numeric keypad from
  3. Give # 31 # via the virtual keys
  4. Adds the callee Phone number in addition
  5. Press the green handsetto make the anonymous call
Hide the phone number on the Apple iPhone and call anonymously, this is also possible using the GSM code #31#. If you don't want to suppress your number but actually want to send it, use *31#.

Hide the phone number on the Apple iPhone and call anonymously, this is also possible using the GSM code #31#. If you don't want to suppress your number but actually want to send it, use *31#.

Showing your own phone number only for selected calls is very similar, by the way. So if you've turned off "Send my caller ID" but want to send your number for individual calls, simply enter *31# in front of the phone number you want to call. By putting this GSM code in front, your number is transmitted once. That way you don't have to fiddle around with settings for individual calls.

Keep iPhone phone number private (individual contacts)

Now it can happen that you not only have individual phone calls where you want to keep your phone number secret with #31# or have your phone number displayed with *31#. Perhaps there are also certain contacts or groups of people to whom one or the other applies. No problem! Then simply open their entry in the contacts app, select the "Edit" option and enter one of the GSM codes shown in front of the stored telephone number. This is how it is transmitted with every call:

  • #31# + phone number: call anonymously
  • *31# + phone number: display the number

Entry in the iPhone user manual: Retrieve here

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