Wangiri is a type of telephone fraud that affects millions of people around the world. Although the term may sound unfamiliar, it is a very old type of scam that is still very much present today.
What is Wangiri?
Wangiri is a Japanese term meaning “one ring and cut”. It refers to a telephone scam in which the attackers make a very short call (usually less than a second) and hang up before the victim can answer. The aim is for the recipient, on seeing the unknown number, to call back out of curiosity or by mistake. When you return the call, the line connects to a premium-rate or high-cost number, generating a very large charge. This type of fraud has become more common worldwide because of how easily criminals can hide their identity and manipulate telephone numbers so that they look local or trustworthy.
How Wangiri works
The mechanism is simple but very effective. Missed call: the scammer makes a call lasting less than a second and hangs up before the victim can answer, often from an unknown number or one with an eye-catching international prefix. Call back: the victim, seeing the missed call, is curious or thinks it may have been important and returns it, without knowing that they are calling a premium-rate number. High rate: the call is automatically connected to a premium service, often with an international or high-cost rate, and the scammer profits from every minute the victim stays on the line. Excessive charges: the victim then receives a much higher telephone bill than usual. In some cases the criminals contact the victims several times using the same method.
How to protect yourself
Do not return unknown calls, especially from an international prefix you do not recognise; if the call was important, the caller will leave a message or contact you another way. Check the number online: Wangiri scams are often linked to numbers that other people have already reported. Ask your telephone provider about blocking or alerts for premium-rate numbers. Block suspicious numbers on your phone. Report the fraud: if you have called a premium number, contact your telephone company immediately; some operators allow customers to dispute the charges and may offer a partial refund. Review your telephone bill regularly and report any suspicious or unauthorised charge. In Spain, pay particular attention to numbers beginning with 803, 806 and 807, which are associated with special-rate services and can mean a significant cost.
In short
Wangiri is a simple telephone fraud that can prove very costly if you do not take precautions. Whenever you receive unknown calls, especially from international numbers or unrecognised prefixes, avoid calling back without checking the authenticity of the number. Prevention and attention to detail are the key to protecting yourself against Wangiri and other telephone frauds. If you believe you have already been a victim, contact us: we can help.
Why the call back costs money
The scheme relies on premium-rate or international numbers whose cost per minute or per call is far above an ordinary call, with part of the revenue passed on to whoever holds the number. In Spain, premium-rate services operate on prefixes such as 803, 806, 807 and 905 and are subject to a specific code of conduct on pricing and information, but Wangiri calls usually come from foreign numbers, where no such protection applies and the operator simply bills the international rate agreed with the foreign network. The charge appears on the next invoice, often under an unfamiliar country, and the person only realises once the money has been paid.
What you can demand from your operator
Telecommunications regulations entitle users to request from their operator, free of charge, the barring of outgoing calls to premium-rate numbers and to international destinations, a measure that is particularly advisable for elderly relatives and for company lines. When a suspicious charge appears, the invoice should be disputed in writing with the operator’s customer service, keeping the reference number of the complaint. If the operator does not resolve the complaint within one month, the user may take it to the Telecommunications User Service Office of the Ministry, which decides on billing disputes, and may also refer the matter to consumer authorities. Operators have fraud-detection systems and often refund the calls when they are shown to fit a known pattern.
Criminal relevance and when to report
Provoking calls to obtain a share of an inflated tariff is fraud under Article 248 of the Criminal Code. Because each victim usually loses a small amount, the individual conduct may amount to a minor offence, but the courts consider the total obtained from many victims when the same organisation is behind the numbers, and Article 250 aggravates the fraud when it affects a large number of people. A complaint with the National Police or the Guardia Civil, including the numbers, dates and the invoice, helps the authorities to request the blocking of the numbers and to identify the network, which frequently operates from several countries at once.
Frequently asked questions
Is calling back a missed call enough to be charged?
Yes, if the number is a premium-rate line: the charge starts as soon as the call connects and increases with every minute on the line.
Can I get the money back?
Contact your operator immediately and dispute the charge; some operators refund all or part of it. Keep the bill and the call record as evidence and, for significant amounts, file a complaint.
Which prefixes should I be wary of in Spain?
Numbers beginning with 803, 806 and 807 are special-rate services. International prefixes you do not recognise are also a warning sign.
Can I ask my operator to block premium-rate and international calls?
Yes. Telecommunications regulations entitle users to request the barring of outgoing calls to premium-rate numbers and to international destinations free of charge.
Where do I complain if the operator refuses to refund the charge?
After a written complaint to the operator, if it is not resolved within one month, the dispute may be taken to the Telecommunications User Service Office of the Ministry, and a criminal complaint may also be filed.
Related guides
- Recovering money from an online scam in Spain
- Frequently asked questions on criminal defence in Spain
Do you need a criminal defence lawyer in Alicante or Madrid now? Société Juridique provides emergency assistance and 24-hour assistance to detained persons in Alicante, Madrid and throughout Spain.
This article is informative in nature and does not constitute legal advice. For a specific case, consult a lawyer.
Francisco Javier Martín Porras
Abogado penalista, socio de Société de Conseil Juridique et Expert y creador de la metodología LIWARD®. Dirige la defensa en procedimientos penales de alta complejidad, combinando estrategia procesal con análisis pericial y forense. Conozca al equipo →
