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Explainer

EXPLAINER: Wangiri Scam – Missed Call from Unknown International Number: All You Should Know

Okay.ng
By Okay.ng
Published: March 31, 2025
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5 Min Read
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Have you ever received a missed call from an unknown international number that rang only once? If so, you may have been targeted by the Wangiri scam—a clever and costly form of telecom fraud that has spread globally.

Contents
What is the Wangiri Scam?How the Wangiri Scam WorksHow to Identify a Wangiri ScamCommon Country Codes Used in Wangiri ScamsWhy the Wangiri Scam Is DangerousHow to Protect Yourself from the Wangiri ScamWhat to Do If You Fall VictimSummary Table: Wangiri Scam at a GlanceFinal Thoughts

This article explains what the Wangiri scam is, how it works, how to identify it, and most importantly, how to protect yourself and others.


What is the Wangiri Scam?

Wangiri is a Japanese word that means “one ring and cut.” This term perfectly describes the nature of this scam, which involves scammers calling your phone, letting it ring once, and then hanging up.

The goal? To trick you into calling back. Once you do, you’re connected to a premium-rate number that can rack up serious charges in a matter of seconds.

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How the Wangiri Scam Works

Here’s a breakdown of the typical flow of this scam:

  • Step 1: Auto-Dialing
    Scammers use auto-dialing systems to call thousands of random numbers globally. They let the phone ring just once.
  • Step 2: Missed Call Notification
    The recipient sees a missed call from a foreign number and becomes curious or concerned.
  • Step 3: Callback by Victim
    If the victim returns the call, they are connected to a high-tariff line, often disguised as a customer service or survey line.
  • Step 4: High Charges Applied
    The victim is charged heavily per minute, and the scammer takes a share of the revenue generated.

How to Identify a Wangiri Scam

Here are common signs to help you spot a Wangiri scam:

  • One-ring calls from international or unfamiliar numbers
  • Multiple missed calls in a short period from different foreign numbers
  • Numbers that start with country codes from distant or uncommon countries

Common Country Codes Used in Wangiri Scams

Scammers often use international dialing codes to appear legitimate or to trick victims into thinking it’s an urgent call. Below are some country codes that have been commonly used in past Wangiri scams:

CountryCountry Code
Moldova+373
United Kingdom+44
France+33
Tunisia+216
Kosovo+383
Cuba+53

Note: Scammers are constantly changing country codes, so this list is not exhaustive.

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Why the Wangiri Scam Is Dangerous

The Wangiri scam isn’t just about annoying calls—it can lead to:

  • Financial Losses: Victims can be charged thousands of naira/dollars depending on call duration and network charges.
  • Privacy Concerns: Scammers may collect data such as call-back numbers, which can be used for further fraud.
  • Phone Network Exploitation: Telecom providers and regulators lose revenue and trust due to the misuse of international calling networks.

How to Protect Yourself from the Wangiri Scam

Protecting yourself is as easy as being aware and cautious:

  • Don’t return unknown international calls, especially those that rang only once.
  • Use call-blocking apps that identify spam numbers and stop repeated scam calls.
  • Enable call reporting features offered by your mobile network.
  • Regularly review your phone bills for any unexplained charges.
  • Educate your family and colleagues—many victims are caught unaware.

What to Do If You Fall Victim

If you accidentally call back a suspicious number:

  1. End the Call Immediately – Every second counts in minimizing charges.
  2. Contact Your Network Provider – Report the number and request an investigation or refund if applicable.
  3. Block the Number – Prevent further calls from the same scammer.
  4. Stay Alert – Once you’re targeted, you may be targeted again. Remain cautious moving forward.

Summary Table: Wangiri Scam at a Glance

AspectDetails
Scam NameWangiri (Japanese for “one ring and drop”)
Main TacticMissed international calls to prompt a costly callback
Victim LossHigh call-back charges to premium-rate numbers
Common Country Codes Used+373, +216, +33, +44, +53, +383
Scam ObjectiveRevenue sharing from premium rate calls
How to AvoidNever call back unknown international missed calls
Action if VictimizedContact your network, block number, monitor phone bills

Final Thoughts

The Wangiri scam thrives on curiosity and urgency. In an age where people rely heavily on their phones for business and personal communication, falling for a one-ring scam can be both costly and frustrating.

By staying informed and cautious, you can protect yourself, your loved ones, and your money. When in doubt—don’t call back.

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