Number ranges used for ping calls are published by RTR on this page. You can use this information to block corresponding number ranges for incoming calls. All modern smartphones offer this option. This works either directly via the smartphone or suitable apps.
Instructions for blocking incoming calls:
Apps are also available for both operating systems with which phone numbers can be blocked to a greater extent. It is best to find out more directly in the Google Playstore or Apple App Store.
You can find more information on the different number ranges in our number search.
Status: December 2020
More and more entries are being registered about annoying calls in which people (mostly in bad English) pretend to be employees of "Microsoft" and try to request personal data. One-time payments, subscriptions, but also the installation of applications are offered as part of the solution to an allegedly existing problem with you as a customer. We know that the phone numbers shown on the display are fake and that the subscriber behind the phone number shown is usually not the perpetrator (caller). Normal phone numbers are displayed, apparently in order not to arouse suspicion and to motivate people to take off.
Tips for dealing with such calls: Avoid contacting or cancel contact immediately. Do not call back the displayed number. Do not reveal any details about yourself or your data. If you, as a Microsoft customer, have followed the instructions for such a scam call, you should immediately uninstall all applications made in the course of the call. Try to cancel any payments you have made. Unfortunately, we have received reports that the harassment is repeated frequently. Therefore, if you are already being harassed and see unknown numbers on the display, it is best not to answer at all.
Microsoft itself offers customer support for these cases.
There is a growing number of reports of harassing calls asking you questions about your personal wine preferences. In the course of the phone call, they promise to send you a little "surprise", which is why they want to elicit your data, such as name and address.
In this context, however, we also generally recommend that you handle your personal data (telephone numbers and other contact details, but especially account details) carefully.
Further information can be found under Reporting office of phone number misuse.