Code #31# that hides the phone number in an outgoing call.
To hide your phone number when calling someone you do not want to reveal your number to, enter the code #31# before the selected phone number. Thanks to this, our phone number will not be displayed to the person we are calling.
To hide your phone number when calling someone you do not want to reveal your number to, enter the code #31# before the selected phone number. Thanks to this, our phone number will not be displayed to the person we are calling.
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6 answers

The question should be who is the inventor of this code. I do understand your are sharing knowledge behind the code.
The question should be who is the inventor of this code. I do understand your are sharing knowledge behind the code.
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Not everyone knows this code and find the code how to check if your phone is tapped
Not everyone knows this code and find the code how to check if your phone is tapped
Machine translated
Jeżeli potrzebujesz tego kodu do ukrycia czegoś karalnego to nie ma sensu.Do zabawy a i owszem.
Jeżeli potrzebujesz tego kodu do ukrycia czegoś karalnego to nie ma sensu.Do zabawy a i owszem.
31# before dialing the number will reserve this call. Ab B your number will not be displayed. However, e.g. when calling an emergency number, e.g. 112, the number is still visible to the operator during the call. Your telecommunications operator can also locate you, as alf Gall wrote. This makes sense when you call stores and don't want them to call you back, but remember that there is an option to block anonymous calls. If AbB has introduced such an option, you won't be able to reach it. :)
31# before dialing the number will reserve this call. Ab B your number will not be displayed. However, e.g. when calling an emergency number, e.g. 112, the number is still visible to the operator during the call. Your telecommunications operator can also locate you, as alf Gall wrote. This makes sense when you call stores and don't want them to call you back, but remember that there is an option to block anonymous calls. If AbB has introduced such an option, you won't be able to reach it. :)
Machine translated

Code #31# to hide phone number in outgoing call If you want to keep your phone number private, you can use code #31#. Entering this code in front of the selected phone number will hide your number from the other person you are calling. In this way, you will avoid a situation where you accidentally give your phone to a person with whom you do not want to share your contact details. Thanks to this step, you will gain more control over your privacy and your calls will be more secure and confidential. It is worth remembering that this code only works on an outgoing call, i.e. when you are the one calling someone. However, it does not work when someone is calling you - in this case, the phone number of the caller will be visible on your screen.
Code #31# to hide phone number in outgoing call If you want to keep your phone number private, you can use code #31#. Entering this code in front of the selected phone number will hide your number from the other person you are calling. In this way, you will avoid a situation where you accidentally give your phone to a person with whom you do not want to share your contact details. Thanks to this step, you will gain more control over your privacy and your calls will be more secure and confidential. It is worth remembering that this code only works on an outgoing call, i.e. when you are the one calling someone. However, it does not work when someone is calling you - in this case, the phone number of the caller will be visible on your screen.
Machine translated