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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.

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Used by 1M+ users
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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) 691-8397

Unknown
AT&T United States · +1
He said he is from IRS Washington d.c. when I said IRS does not call, they send letters he hang up.

Community report

(650) 250-4464

Scam suspicion
AT&T United States · +1
The phone number, 650-250-4464, belongs to a scammer from cla**ified ads sites who says his name is James, lives in San Jose, California, and is a flight attendant. Ignore or report this crook to the authorities. This criminal usually communicates with his victims via text messages.

Community report

(323) 321-6229

Scam suspicion
AT&T United States · +1
They will not give you any info on what company they are with. Asking personal questions about the whereabouts of a family member. But will not tell me the reason for the call. They are very rude!

Community report

(223) 777-4001

Unknown
Unknown United States · +1
This number called me 5 times yesterday. Leaving 5 messages repeating thier phone number.

Community report

(512) 782-4573

Scam suspicion
AT&T United States · +1
Just received a call from #512-782-4573 from Texas. It was a recording stating that I need to call back because the Soc. Sec. Office is after me for my soc. sec. # and me using it fraudulently.

Community report

(877) 367-3550

Unknown
Toll-Free Number United States · +1
Calling cell and work number with threatening comments about documents to be delivered.

Community report

(208) 215-2897

Tax Scam (IRS,CRA)
Unknown United States · +1
Heavy accent, stuttered through what was obviously a script, super quick to jump on taking a credit card over the phone (THE IRS WILL NOT DO THIS!!!).

Community report

(936) 277-0044

Tax Scam (IRS,CRA)
AT&T United States · +1
I asked for all contact info 1111 Const*tution Avenue, NW Washington, DC 20224. and told them they were FRAUD and I was reporitng them what do mean??? his reply

Community report

(877) 270-8321

Unknown
Toll-Free Number United States · +1
This number constantly calls me (5-6 times a day, every weekday for past 4 months) with no one there when I answered. Reports state the same from others... In Canada, but the number is in US!!! Whatever ... Needs to stop.

Community report

(855) 414-9535

Phishing
Toll-Free Number United States · +1
This is a number claiming to be a law office. They are phishing for information, it is a scam.

Community report

(330) 673-0602

Scam suspicion
Unknown United States · +1
Recording that left message my SS# was in a transaction involved with fraud. Please call back.

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

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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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