Why can't I call back a number?

security Trace a call - this is how the reverse search works


Would you like to find out who is behind the phone number from which you have just been called? Then of course you could just call the number back. If that's not what you want, there are other ways to identify the unknown caller.

Trace phone numbers

If you receive a call from an unknown number, use the Internet to identify the caller. Websites such as Das Örtliche or Reverse Search Phonebook offer reverse searches for phone numbers. So enter the unknown number on one of the web pages and start the search. You will then be shown who the number belongs to and how serious and trustworthy it is.

It is not uncommon for the unknown numbers to come from so-called ping calls. Often companies are behind this with the intention of ripping you off. If you call such numbers back, you will find yourself stuck in a cost trap - the next cell phone bill will then be high. So be careful of numbers with 00261, 00257 or similar.

If the search on the website does not yield anything, you can also enter the number directly into the search engine. Often this is also the way to get information about the caller.

What do you do with suppressed numbers?

If a caller withholds their number, you cannot see them - of course, you cannot call them back and find out the number if necessary. There are apps that promise to reveal unknown phone numbers and can even give you available information about them. But often these are useless or require a large sum of money for their services. The use of such apps is therefore not advisable.

So if you receive unwanted calls from withheld numbers, you have no choice and have to put up with the fact that you cannot identify the caller. However, you can block such calls in the settings of your smartphone:



Follow our step-by-step instructions or take a look at the quick start guide.


quick start Guide

  1. Open the Phone app On your smartphone, tap the in the upper right corner Three point menu and choose "Settings".
  2. Then tap on "Block numbers"and then activate the setting"Block unknown callers".