One ring, then silence. You see a missed call from a number with an unfamiliar country code, and you feel tempted to call back. Don’t. Calling back an unknown international number can cost you money and open the door to other frauds. If the call really mattered, the person can call again or leave a message.
This kind of international missed call scam is often called a “one-ring” or “Wangiri” scam, from a Japanese term meaning “one ring and cut”. This article explains how callback scams work, which patterns to be wary of, and how to block and report such numbers.
- One-ring calls from unknown country codes are designed to make you call back.
- Calling back may connect you to a premium-rate line, with charges on your balance or bill.
- WhatsApp calls from foreign numbers often lead to job, investment or blackmail scams.
- Do not call back; block the number and use your phone’s call filters.
- Report suspicious calls through Chakshu on the Sanchar Saathi portal.
How an International Missed Call Scam Works
The basic idea is simple: get you to make the call.
- The bait: Automated systems dial thousands of numbers. The phone rings once or twice and stops, so you cannot answer in time.
- The callback: Curious or worried, you call back.
- The charge: The number may be a premium-rate or high-cost international line. The longer you stay on, the more you pay. Scammers may play hold music or a recorded message, or pretend the line is bad, to keep you talking.
- The profit: The scammers earn a share of the call charges.
Depending on your plan and settings, international calls may be blocked, deducted from your balance or added to your postpaid bill. Either way, there is no good reason to call back a stranger abroad.
Other versions of the scam
- Callback for a “prize” or “parcel”: An SMS asks you to call an international number to claim a reward or a delivery.
- WhatsApp calls from foreign numbers: These do not carry call charges, but they are often the start of fake job offers, “like and earn” task scams, investment fraud or blackmail using recorded video calls.
- Spoofed Indian numbers: Some calls from abroad are made to show an Indian (+91) number so that you trust them.
Even a short callback to see who it was can be charged at international or premium rates. If someone genuinely needs you, they will call again or send a message.
Call Patterns That Should Make You Wary
Watch for these signs:
- A country code you do not recognise, especially if you have no friends, family or work contacts in that country.
- Calls that ring once and cut off, often late at night or early in the morning.
- Several missed calls in a row from similar-looking numbers.
- A follow-up SMS urging you to “call back urgently”.
- WhatsApp calls or messages from foreign numbers offering jobs, money or friendship.
| Call pattern | Risk level | What to do |
|---|---|---|
| One ring from an unknown country code | High | Ignore and block |
| Repeated missed calls at odd hours | High | Ignore, block and report |
| WhatsApp video call from an unknown foreign number | High | Do not answer; block and report |
| SMS asking you to call abroad for a prize | High | Ignore and report the SMS |
| Call from a relative abroad | Low | Call back on the number saved in your contacts |
Indian numbers start with +91. If you see a different code after the + sign and you do not know anyone in that country, treat the call as suspicious. If you are curious, search for the code online later, but never call the number to find out.
How to Block Unknown International Numbers
On Android
- Open the Phone app and go to Recents or your call history.
- Tap or long-press the number.
- Choose Block or Block/report spam (labels vary by phone brand).
- In the Phone app settings, look for Blocked numbers or Caller ID and spam and turn on spam filtering where available.
On iPhone
- Open the Phone app and tap Recents.
- Tap the info (i) icon next to the number.
- Tap Block this Caller.
- To cut down such calls, turn on Silence Unknown Callers under Phone in Settings (or Apps > Phone on newer iOS versions).
On WhatsApp
- Go to Settings > Privacy > Calls and turn on Silence unknown callers.
- Open the chat, tap the contact name, and choose Block or Report.
If you never make international calls, ask Jio support (199 from your Jio number) whether international calling can be turned off for your connection. This guards against accidental callbacks by anyone using your phone.
How to Report International Scam Calls
- Report suspicious calls and messages through Chakshu on the Sanchar Saathi portal.
- If a call seemed to come from abroad but showed an Indian +91 number, the Sanchar Saathi portal also lets you report international calls that appear with Indian numbers.
- If you lost money or shared bank details, call 1930 or report it at cybercrime.gov.in.
- If you see unexpected international call charges, contact Jio support on 198 (complaints) from your Jio number.
What to Do If You Already Called Back
Do not panic. A single short call usually leads to limited charges, if any.
- Hang up as soon as you realise something is wrong.
- Check your balance or usage in the MyJio app.
- Block the number.
- Do not share any personal or bank details if they call again.
- If you see unexpected charges, contact Jio support with the date and time of the call.
Frequently Asked Questions
Is it risky to answer a call from an international number?
Answering is usually less risky than calling back, but never share personal details or follow instructions. If you do not know anyone in that country, it is safer to let it ring and block the number.
Why do I keep getting missed calls from different countries?
Scammers use automated systems that dial huge lists of numbers. Getting such calls does not mean your phone or number has been hacked.
Can a missed call alone take money from my account?
No. A normal missed call cannot take money from your account. The risk comes from calling back, sharing details or opening links sent later.
What is the Wangiri scam?
“Wangiri” is a Japanese term meaning “one ring and cut”. It describes calls that ring once so that you call back an expensive international number.
Should I report these numbers even if I did not call back?
Yes. Reporting through Chakshu on the Sanchar Saathi portal helps authorities spot and act against numbers used for fraud.
Final Thoughts
An international missed call scam only works if you call back. Make it a habit: if you do not recognise the country code and know no one there, let it go, block the number and report it. Save the numbers of relatives and colleagues abroad in your contacts, so genuine calls are easy to recognise.
JIo Near me is an independent guide and is not affiliated with Reliance Jio. App menus, plans and policies can change – always confirm current details in the official MyJio app or on jio.com. We will never ask for your OTP, PIN or passwords.
