One-ring (Wangiri) callback scam
Your phone rings once and stops. The scammer hopes curiosity makes you call back a number that routes to an international premium-rate line, generating per-minute charges that are shared with the scammer.
The economics run on international premium-rate billing: the scammer leases revenue-share numbers in destinations whose codes resemble domestic ones — 649, 767, 809, 876 and others dial without a plus sign. Every returned call generates connection fees and expensive per-minute charges that flow back to the operator. Campaigns run in overnight bursts against sequential number ranges, betting that a fraction of curious callbacks pays for the whole run. The defense is a single habit: missed calls from unknown codes get looked up, not returned.
How to recognize it
- A missed call that rang only once, often late at night
- Repeated one-ring calls from the same or similar numbers
- The number uses a NANP-looking format but belongs to an international destination (e.g. some Caribbean codes)
What to do
- Do not call back numbers you do not recognize
- Check unfamiliar 'area codes' before returning a call — some are international
- Ask your carrier to block international premium calls if you never make them
Where to report
Sources
FAQ
What should I do first if I suspect a one-ring (wangiri) callback scam call?
Hang up without pressing anything or confirming any details. Do not call back numbers you do not recognize. Then report it through the channels listed below.
I already gave the caller money or information — now what?
Act on the money first: contact your bank or card issuer immediately, and if you paid by gift card, call the card company to try freezing the balance. Then file a report at ReportFraud.ftc.gov and, if identity data leaked, follow the recovery plan at IdentityTheft.gov.
Does the number that called me identify the scammer?
Usually not — the display is routinely spoofed. Report the number anyway: combined with time and content, it still helps investigators map calling campaigns.