Do not call back to these numbers! You could lose a fortune

Beware of calls from unknown numbers, especially foreign ones. Fraudsters use the “wangiri” method to generate huge costs. Find out how to protect yourself.
Missed calls from unknown numbers may seem harmless, but they can lead to significant financial losses. Scammers using the “wangiri” method exploit human reflexes to expose victims to additional costs. Learn how this scheme works and how to avoid the risks.
“Wangiri” method – quick cutting, large losses
The “wangiri” method (Japanese for “quick cut”) involves making short calls from foreign numbers that are disconnected after one ring. Callers expect recipients to call back, which generates high international call charges.
Sometimes fraudsters also use machines that artificially prolong the conversation, which can increase telephone bills by up to several hundred zlotys.
Dangerous numbers – what prefixes should you watch out for?
Interpol has identified the prefixes most frequently used by fraudsters. These include numbers from countries such as:
- Moldova (+373)
- Kosovo (+383)
- Tunisia (+216)
- Somalia (+252)
- Afghanistan (+93)
- Philippines (+63)
- Azerbaijan (+994)
- Mali (+223)
These numbers are often used because telecommunications regulations in these countries are less restrictive, allowing fraudsters to generate millions in profits.
How does the fraud scheme work?
Fraudsters use special systems that loop the waiting signal after establishing a connection. The victim does not realize that he is already paying for the call, thinking that he is waiting for the call to be answered. This is a simple way to extend the call time and increase costs.
“Let’s simply ignore calls from unknown numbers, especially those with exotic prefixes. Removing such numbers from the list of missed calls is the simplest method of protection against losses,” says Witold Tomaszewski from the Office of Electronic Communications (UKE) in an interview with PAP.
Why don’t operators prevent fraud?
Mobile operators bill each other on a wholesale basis. In countries outside the European Union, call rates per minute are much higher, often reaching PLN 1-3.
Fraudsters work with local telecommunications companies, generating millions of calls and sharing the profits.
How to protect yourself against the “wangiri” method?
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Do not call back to unknown numbers, especially foreign ones.
If someone wants to contact you, they will call you again.
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Install applications that block suspicious numbers.
There are programs that identify phone scams.
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Check the number prefix.
If you notice an exotic prefix, it’s best to ignore it.
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Remove unknown connections from the list.
This will reduce the risk of accidental callbacks.