Scam phone numbers: why a list won't protect you and what to do instead
Quick answer
A list of scam phone numbers won't keep you safe, because scammers spoof caller ID and change numbers constantly. Don't call back a number you don't know. Hang up, look up the real organization yourself and report the call at ReportFraud.ftc.gov.
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How it works
People search for scammer numbers hoping to check one before answering. It helps less than it seems. The FTC's guidance on unwanted calls says scammers use technology to change the number shown on your caller ID, so the name and number you see might not be real, and they keep picking new numbers to spoof.
That means two things. A number missing from a list isn't proof a call is safe. And a number you recognize, like your bank's or a local office, can still be a spoof.
Check the request instead of the number. A real organization won't pressure you to pay immediately, ask for payment by gift card or crypto, or demand a code sent to your phone.
Red flags
- A caller who creates urgency or threatens arrest, fines or a frozen account
- A request for payment by gift card, crypto or wire
- A call that appears to come from a real bank or agency, but asks you to confirm details
- Anyone asking for a code that was just texted to you
- A request to call a different number or press a key to speak to "an agent"
- A voicemail with a callback number you didn't ask for
Example message
This is the fraud department. We've seen suspicious charges on your account. Press 1 now or call us back at [phone number] to stop them. Do not share this message.
What to do
- 1
Don't call the number back
Hang up on unexpected calls. If you want to check, look up the organization's number on its official website or the back of your card and call that.
- 2
Don't trust caller ID
The FTC says scammers can change the number on your caller ID, so a familiar name or area code proves nothing.
- 3
Never share codes, passwords or payment details
A real caller won't need a code texted to you or payment by gift card.
- 4
If you gave details or paid
Call your bank or card issuer, change passwords and consider a credit freeze. See what to do after a data breach for the steps.
- 5
Report the call
Report scam calls and unwanted texts to the FTC, and fraud losses to IC3.
Report it
Check if your details are exposed with Serus
Scammers find your number and address on data brokers and people-search sites. Serus removes them.
Why you got it
Scammers dial lists of numbers, and many come from people-search sites and breached data that tie your number to your name and address. Serus finds the people-search and data broker listings that show your phone number and address and removes them, and alerts you when your details turn up in a breach, so fewer scammers can build a believable story about you.
Frequently asked
Can I trust a list of scam phone numbers?
Not on its own. The FTC says scammers change the number on caller ID and keep picking new numbers to spoof, so any list goes out of date fast.
A call showed my bank's name. Is it real?
It might not be. Hang up and call the number on the back of your card.
Where do I report a scam call?
At ReportFraud.ftc.gov. If you lost money, also file at ic3.gov.
How did they get my number?
Scammers buy and scrape numbers from many sources. Removing your listings from people-search sites and watching for breaches cuts what they can find.
Sources
Something wrong or out of date? Tell us and we'll re-check it.
