How to recognize risky international calls

6. 11. 2025 16:00

Why scammers use foreign numbers

Many fraud campaigns are based on calls from foreign numbers. In some cases the goal is to make you call back a premium rate line, which can be very expensive even for a short call.

Warning signs of a risky international call

  • You see an unknown country code that you do not usually communicate with.
  • The call rings only very briefly and no message is left.
  • The calls are repeated at night or during weekends.
  • You receive several calls from different but very similar numbers.

Safe reaction to unknown foreign numbers

  • Do not call back just because you are curious.
  • Search the number on the internet or on a who called service and read comments.
  • If other users report it as a scam or premium number, block it.

Limiting calls to premium and foreign numbers

Many mobile operators allow customers to restrict calls to premium or international numbers. This can be a good preventive measure, especially for children or elderly family members.

By combining cautious behaviour, operator settings and community services you can significantly reduce the risk connected with unknown international calls.