Is This Number a Scam? How to Check a Phone Number

“Is this number a scam?” It’s one of the most common questions people ask after a strange call or text. Here’s the honest answer: a phone number by itself can’t tell you who’s calling. Scammers can make almost any number appear on your screen — a local number, your bank’s real number, a government agency’s number, even your own.

So instead of judging the number, judge the call. This guide gives you a quick checklist, and shows you how to find the real number to call back.

Why you can’t trust the number on your screen

The FCC explains that “spoofing” is when a caller deliberately falsifies the information sent to your caller ID display. Scammers use “neighbor spoofing” to look like a local call, or spoof the number of a company or government agency you already trust. The FTC puts it plainly: don’t trust caller ID. Learn more in why scammers can fake any number.

The 6-question checklist

Ask yourself these questions about any call or text from a number you don’t recognize. A “yes” to any of them means you should hang up or stop replying.

1. Are they asking for money? Especially by gift card, wire transfer, cryptocurrency or payment app. The FTC says anyone who insists you can only pay that way is a scammer.
2. Are they asking for personal information? The FTC says government agencies don’t call out of the blue asking for information like your Social Security number. Never share account numbers, passwords, PINs or codes with someone who calls you.
3. Are they threatening or rushing you? Threats of arrest, fines, deportation or a frozen account — or pressure to decide right now — are classic scam tactics.
4. Did the phone ring once and stop? The FCC warns about “one-ring” scams designed to get you to call back. The number may look like a U.S. area code but actually be international — for example, “232” goes to Sierra Leone and “809” to the Dominican Republic.
5. Did the text come from your own number? The FTC says that’s a scam, every time.
6. Did a recording ask you to press a button? The FCC says scammers use “press 1 to stop these calls” to identify people who answer. Just hang up.

EXAMPLE — SCAM

Today 7:58 PM●●● ▮

Voicemail transcript (876) 555-0164

Hi, this message is for the resident. We have a package for you that requires a delivery appointment. Please call us back today at (876) 555-0164 to schedule, or it will be returned.

The FCC notes that one-ring scams have variations, like voicemails that urge you to call an unfamiliar area code to “schedule a delivery” or about a “sick” relative. Before calling any unfamiliar number, check whether the area code is international.

How to find the real number to call back

If a call might be real — your bank, a doctor’s office, a government agency — hang up and call back using a number you find. The FCC recommends the number on your account statement, in the phone book, or on the company’s or agency’s official website.

Who called (or claimed to)	Where to find the real number
Your bank or card company	The back of your card, your statement, or the bank’s official app
A store, utility or service company	Your bill or account statement, or the official website you type in yourself
IRS	800-829-1040, or view your account on irs.gov (the FTC lists both)
Social Security	Find your local office on the official SSA website
Medicare	1-800-MEDICARE (1-800-633-4227)
Local police or sheriff	Look up the office’s number yourself and call it
A family member in trouble	The number you already have saved in your phone

The FCC also notes that you’ll usually get a written statement in the mail before a legitimate phone call, particularly if the caller is asking for payment.

What about texts from unknown numbers?

The same rules apply. Don’t tap links or reply to texts from numbers you don’t recognize. If a text claims to be from a company you do business with, open its official app or type its website address yourself. Scam texts can come from any number — even one that looks local or official — and sometimes from an email address. See scam text messages: common examples.

Let your phone do some of the checking

Phone companies can label suspected unwanted calls with tags such as “spam” or “scam likely,” and block calls from invalid or unassigned numbers, the FCC says. Turn on:

• your carrier’s free spam protection (such as AT&T ActiveArmor, T-Mobile Scam Shield or Verizon Call Filter), and
• your phone’s built-in filters (Silence Unknown Callers on iPhone; Filter Spam Calls on Android).

Step-by-step settings are in how to stop spam texts on iPhone and Android.

Report the number

Reporting a scam number helps everyone. The FTC releases the phone numbers people report every business day so phone companies can build call-blocking and labeling tools. Report at DoNotCall.gov if you didn’t lose money, or ReportFraud.ftc.gov if you did. Include the number on your caller ID, any callback number the caller gave, and the date and time. See how to report a scam phone number or call.

If you already called back or shared information

• Called back a one-ring number and see unexpected charges? The FCC says to first try to resolve it with your phone company; if you can’t, you can file a complaint with the FCC.
• Shared personal or financial information or paid? Follow our first-hour checklist.