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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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Most Reported Spam Numbers in United States โ€“ 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.

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

(443) 303-2992

Tax Scam (IRS,CRA)
Verizon United States ยท +1
irs scam call. I told them the federal govt. was tracing them, then they told me they were the federal govt., so I just kept saying it and the guy with a heavy spanish accent finally cracked and said..stop stop and hung up.

Community report

(360) 474-4922

Scam suspicion
T-Mobile United States ยท +1
Caller had a terrible far eastern accent. Stated she was from the IRS. and to call her back รขโ‚ฌล“before the situation unfolded on meรขโ‚ฌย

Community report

(510) 225-9304

Tax Scam (IRS,CRA)
AT&T United States ยท +1
Robot says it's the IRS - says they received a tax fraud against me - so before this goes to federal claims or I get arrested call this number immediately!

Community report

(415) 325-5818

Scam suspicion
AT&T United States ยท +1
Call originated on a Cell phone in San Fransisco, CA. They listed a number in LA, 310 areacode and claimed if I didn't respond immediately, they were going to suspend my social security number. The call was breaking up so bad that I missed a lot of it.

Community report

(828) 385-5960

Scam suspicion
Unknown United States ยท +1
This person calls me at 8:00 am asking for Emma. I know this is a scam because I have received other calls from different phone numbers of course, asking for Emma and when I say no they go into how they are collecting money for police officer widows. These people are scum don't trust them.

Community report

(360) 559-0767

Tax Scam (IRS,CRA)
T-Mobile United States ยท +1
Caller told me they were a IRS agent. They said they had a case pending against me. Gave me their name, badge number, and description of the charges against me. When I started questioning them about the charges they hung up. Called back 2 more times and each time they hung up on me mid sentence. I knew it had to be a sram but I was surprised by the level of detail they used. I am going to call again in hopes they tell me what I can do to make the case go away. And if they are demanding money who they want me to send the money to just for fun.

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

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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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