The Federal Network Agency is trying to protect people in Germany from telephone fraud. Scammers try to get data or money from unsuspecting people by phone call or text message – some numbers don't call you.
The agency can only take action against telephone numbers that are communicated to them. If fraudsters call without a displayed phone number, the origin of the call cannot be clarified. As early as December 2022, there were warnings of an increase in calls without displayed phone numbers. According to the Federal Network. Agency, the numbers will be switched off in order to prevent further fraud attempts.