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US United States Phone Lookup

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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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.

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

(720) 685-6827

Unknown
T-Mobile United States Β· +1
This phone number, has been continuously calling my number back to back. Not leaving any voicemail. I believe this number is a scam number!

Community report

(510) 861-0127

Tax Scam (IRS,CRA)
AT&T United States Β· +1
I have received 2 robocalls from this scammer, last one at 1430 today. I called back to see what I could find out about them and there are 2 people answering the phone, one male and one female. Both are ESL persons. Several calls the woman hung up on me when I pressed her for information, something the real IRS would never do. The message left on my voicemail is as follows: Filing a lawsuit against you and arrest warrant has been released on your name to get more information about this case file and arrest warrant from federal database please call immediately after the IVR recording at our headquarters number that is 510-851-0127. I repeat 510-851-0127. Internal revenue service agent is waiting for your call back. The carrier for this phone number is H2O wireless or New Cingular Wireless PCS, LLC. My caller ID says the number is based out of Hayward, CA with the name Lee Wood. Both persons provide fake names depending on how many times you call back (I called 6 times). They were told to remove my phone # from the call list and still called back. They claim to be in a satellite office of the IRS in a call center and give you bogus employee numbers - same person's voice different numbers. The last time I called I told them the phone # they were calling belongs to a minor child so stop calling, they called again. In one call I played along making up info in an attempt to get more information - phone # given was for another IRS scam line. The address they provided was the White House in Washington DC. I pressed them and said that 510 is a CA number- changed story to a call center. According to http://www.whycall.me/510-861-0127.html, the exchange 861 is managed by BLUE LICENSES HOLDING, LLC. The number is currently on switch number SNTDCAUJCM9 (switch is a technical specification, provided here for phone hobbyists)

Community report

(720) 650-6735

Scam suspicion
T-Mobile United States Β· +1
Text message from Will about wanting to buy my house. Had my address . Told him not interested and not to contact me again.

Community report

(803) 426-9271

Unknown
Unknown United States Β· +1
voice message to leave name and number. a card claiming to be package shipment showed p in my physical mail box. office attempting to reach me. no name of office or company listed. final notice of attempting to deliver. RIC # 150204

Community report

(855) 423-6529

Unknown
Toll-Free Number United States Β· +1
Threatening phone call from an unknown source (did not identify themselves). Threatening some type of court action.

Community report

(937) 607-5764

Tax Scam (IRS,CRA)
Unknown United States Β· +1
Called telling me that I was under investigation for tax fraud and the only way to get out of it was to pay $4172.00 dollars. Total scam they should be jailed. Indian speaking people.

Community report

(844) 895-8634

Scam suspicion
Toll-Free Number United States Β· +1
Claims to be from MB Justice and also a debt collector. Won't discuss who money is owed to or how much before you give them personal details. Phones every morning between 7 am and 8 am.

Community report

(215) 383-2358

Tax Scam (IRS,CRA)
Verizon United States Β· +1
Complete scam and I dumbly fell for it. They said I had four aligations against my name and had to pay back taxes. DO NOT ANSWER OR CALL BACK

Community report

(240) 408-5032

Scam suspicion
Verizon United States Β· +1
Scary scam about federal prosecution if you donÒ€ℒt call this number back

Community report

(647) 819-0000

Tax Scam (IRS,CRA)
Unknown United States Β· +1
Caller has called several times to my smartphone number since we blocked them on our home phone number. They say that they are claiming that I have broken tax laws and need to pay to avoid a lawsuit. They have called with other scams previously but are calling several times daily now. Is there some way that the RCMP and FBI can find them and stop this hara**ment?

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).

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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