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United States Phone Number Lookup - Find Who's Calling You

United States Phone Number Lookup

Identify unknown calls, spam numbers, and business callers in United States using community reports.

US +1
Used by 1M+ users
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Free & anonymous

Most Reported Spam Numbers in United States – Last 7 Days

Live database of United States's most active spam landline numbers, scam callers, and unwanted telemarketers reported by users in the past week. Identify, verify, and block suspicious +1 phone numbers before they reach you.

No active landline spammers found yet

We will show numbers here as soon as landline call activity is detected in the last 7 days.

Recent Phone Number Reports in United States

Read the latest community-submitted spam, scam, telemarketing, and unknown-caller reports for United States phone numbers.

Community report

(310) 311-4849

Harassment
AT&T United States · +1
Called a dozen times back to back, leaving no message before I could block. Unrecognized number

Community report

(936) 417-1961

Unknown
AT&T United States · +1
Keeps calling and leaves long voicemails that are either blank or as if they left the phone on and are busy with something else. Block this creep.

Community report

(802) 440-0880

Unknown
Verizon United States · +1
This phone number is an IRS SCAM. When asked any questions the call drops. This is a shameful scam.....

Community report

(410) 431-2921

Tax Scam (IRS,CRA)
Verizon United States · +1
Automated voice saying they were from the department of treasury and mentioned something about an arrest.

Community report

(718) 629-8110

Unknown
Verizon United States · +1
No contact made when I return call and voicemail is full but multiple calls come in from this number.

Community report

(844) 813-1244

Unknown
Toll-Free Number United States · +1
They threatened me with court proceedings. I don't owe anyone anything. I looked this number up in white pages and it said it was a scam. Scammers shouldn't be able to try to cheat people!

Community report

(818) 338-6181

Unknown
AT&T United States · +1
I was told that there were 4 allegations against me and that the local cops would arrest me soon if I did not return the phone call.

Community report

(916) 742-6781

Scam suspicion
AT&T United States · +1
This number was calling me all day finally answered and it was a recording saying my social security was suspended and to call it back I called it back took forever for whoever to answer and I knew right then and there it was a scam! Person answered the phone with no name plus social security wouldn’t call from a non 1800 number then asked me my telephone number she then stated my name and Asked for my social security number and I then told her are you crazy I’m not giving you my number and the person hung up on me and I been trying to call back and know one is picking up!!

Recent Phone Number Lookups in United States

See the latest United States numbers searched by the WhoseNo community

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Help others by sharing your experience with unknown callers

US +1

Your report is anonymous. We never share your personal information.

Whose Number Is This in United States?

With over 105 billion unwanted robocalls made in the US annually, receiving calls from unknown numbers is a daily challenge for Americans. Whether it's a missed call from an unfamiliar area code, potential IRS scam, or suspicious telemarketer, our community-powered phone lookup service helps you identify who's calling before you pick up.

Our reverse phone lookup service allows American users to search for phone numbers and access reports from other community members. By sharing experiences and reporting spam or robocalls, we create a safer telecommunications environment for everyone across all 50 states.

Common Spam Call Types
in United States

  • IRS impersonation calls demanding immediate payment
  • Tech support scams claiming your computer has a virus
  • Social Security scams threatening arrest or suspension
  • Fake package delivery texts from USPS or Amazon

How to Identify Scam
Numbers

  • Caller claims urgency or threatens consequences
  • Requests personal info, PINs, or OTP codes
  • Offers that sound too good to be true
  • Unknown numbers calling repeatedly

Are Unknown Calls Always
Dangerous?

Not all unknown calls are harmful. Many legitimate callers include:

  • Delivery services confirming orders
  • Banks calling for legitimate verification
  • Medical offices, pharmacies, or hospitals
Pro Tip
Register your number on the National Do Not Call Registry at donotcall.gov. The FCC requires carriers to use STIR/SHAKEN technology to verify caller IDs. The IRS never calls demanding immediate payment - they always send a bill by mail first. Report scams to ReportFraud.ftc.gov.

Frequently Asked Question

Everything you need to know about phone number lookup in United States

Enter the US phone number in WhoseNo's search box. Our free reverse lookup searches millions of records to identify the caller, show carrier information (AT&T, Verizon, T-Mobile), display user reports, and reveal if the number has been reported as spam or robocall.

The USA country code is +1, shared with Canada and other North American countries under the NANP (North American Numbering Plan). US numbers are formatted as +1 (XXX) XXX-XXXX, where XXX is the area code. For example, a New York number (212) 555-1234 becomes +1-212-555-1234 internationally.

Unlike some countries, US phone numbers aren't assigned to specific carriers by prefix. Due to number portability, users can switch carriers while keeping their number. Our lookup tool queries carrier databases to identify the current service provider for any US number.

Yes, WhoseNo provides completely free reverse phone lookup for all US numbers including AT&T, Verizon, T-Mobile, and regional carrier mobiles, as well as landlines across all 50 states. No registration or payment is required to search numbers or view results.

Search the number on WhoseNo and submit a report describing the call. For serious fraud, report to the FTC at ReportFraud.ftc.gov, file a complaint with the FCC, or register your number on the National Do Not Call Registry at donotcall.gov. You can also report to your phone carrier.

WhoseNo shows information that's publicly available or user-reported. This may include names from social media profiles, business registrations, or community reports. We don't have access to private telecom company databases or government records.

Common scams include IRS impersonation calls demanding immediate payment, tech support scams claiming your computer has a virus, Social Security scams threatening arrest, fake lottery/prize calls, loan and debt relief scams, Medicare fraud calls, and package delivery text scams from fake USPS or UPS.

The US has over 335 area codes. Major city codes include: New York City (212, 718, 917), Los Angeles (213, 310, 323), Chicago (312, 773), Houston (713, 281), Phoenix (480, 602), Philadelphia (215, 267), and Miami (305, 786). California has the most area codes (38), followed by Texas (28) and Florida (23).

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About WhoseNo.com

What We Provide

  • Community-submitted reports about phone numbers
  • General carrier and area code information
  • A platform for users to share experiences with unknown callers

What We Do NOT Provide

  • Real-time location tracking
  • Personal information about phone owners
  • Access to private records

This service is intended for identifying spam and scam calls only. Using our service to harass, stalk, or monitor individuals is strictly prohibited and may violate local laws.

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