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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

(234) 564-2811

Unknown
Unknown United States · +1
The worst craigslist spammer on the website. these are the scumbags posting porn sites, illegal car dealing, scam jobs and on and on and on. these people are god da*n criminals and belong in jail

Community report

(888) 898-8123

Unknown
Toll-Free Number United States · +1
Fertility Miracles scammers and nonstopf**king craigslist spamming asshols

Community report

(702) 356-6659

Unknown
T-Mobile United States · +1
craigslist las vegas real estate scumbag just another low life low balling f**king piece of sh** scamming f**khead

Community report

(970) 406-3419

Unknown
T-Mobile United States · +1
low life f**king piece ofsh** posting porn site ads on craigslist DOX this f**ker !!!

Community report

(725) 314-6393

Unknown
T-Mobile United States · +1
Skanky a*s housing scammer in las vegas you have to be a complete f**king id*ot to let this person in your property BEWARE

Community report

(702) 272-9123

Unknown
T-Mobile United States · +1
craigslist las vegas auto sales scammer and spammer total dirtbag flag and boycott these f**king illegal car dealers

Community report

(702) 272-9123

Unknown
T-Mobile United States · +1
craigslist las vegas auto sales scammer and spammer total dirtbag flag and boycott these f**king illegal car dealers

Community report

(619) 305-9286

Unknown
AT&T United States · +1
craigslist scammer uses multiple phone #s he's happy to spam craigslist when he sells something but he posts a single ad when he wants something. total scumbag and complete hypocrit and lowlife

Community report

(909) 544-7308

Unknown
AT&T United States · +1
serial pet breeding scumbag advertising on craigslist in las vegas just another low life making a quick buck and causing massive pet overpopulation and leaving it to everyone else to support their behavior with tax support pet shelters where the owner make millions. total scam all because of these scumbag breeders

Community report

(978) 200-9861

Unknown
Verizon United States · +1
craigslist scammer and nonstop serial spammer in las vegas total scumbag just trying to take advantage of people flag and boycott

Recent Phone Number Lookups in United States

See the latest United States numbers searched by the WhoseNo community

Report a Phone Number

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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Business Phone Complaints
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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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