Who Called Me? — Identify Any Unknown Number in 30 seconds
Did you receive a call from a number you do not recognise? Clairmo instantly identifies who called you: potential name, phone carrier, geographic area, line type and community spam reports. 100% confidential reverse lookup service.
Full caller identity
Potential name and geographic location associated with the number, sourced from public records.
Spam & scam reports
Browse community reports, risk score and complaint history to spot a scam before calling back.
Result in 30 seconds
Instant analysis from verified public sources — the number owner is never notified.
How our reverse lookup works
1. Enter the number
Type the unknown phone number into our search bar. We accept mobile, landline, and international formats.
2. We search billions of records
Our engine scans public directories, community reports, and carrier data to find the owner.
3. Get instant results
See the caller's name, location, carrier, and spam risk score in seconds.
Why do unknown numbers call you?
Not every unknown call is malicious. Sometimes it is a delivery driver, a doctor's office, or a friend with a new number. However, in 2026 phone scams have increased by 40% globally.
Common reasons for unknown calls:
- Telemarketing — companies selling products or services
- Phone scams — fraudsters impersonating banks, tech support, or government
- Ping calls (Wangiri) — one-ring scams designed to make you call back premium numbers
- Wrong number — someone dialed incorrectly
- Legitimate business — delivery, medical, or service providers
Free methods to identify a caller
Search on Google
Enter the number in quotes (e.g., "+1 555 123 4567"). If it has been reported, you will find forums, scam-reporting sites, or review pages.
Use Clairmo
Clairmo aggregates community reports, public databases, and carrier information to identify phone numbers in seconds.
Check social media
Many people link their phone numbers to WhatsApp, Facebook, or LinkedIn. Searching the number on these platforms can reveal a profile.
How to spot a phone scam
Red flags
- • A number you do not recognise that hangs up after one ring
- • Caller pretends to be your bank, the IRS, HMRC, social security or police
- • Urgent request to pay a fine, send a code or transfer money
- • Robotic voice or pre-recorded message asking you to press 1
- • Unexpected call from an exotic country code (+216, +355, +373, +509...)
- • Premium-rate prefix (e.g. UK 09xx, US 900, FR 0899) you never dialled before
Anti-scam reflexes
- • Never call back an unknown international number
- • Look up the number on Clairmo before dialling
- • Never share an OTP, password or banking detail over the phone
- • Hang up and call the official number printed on your card or bill
- • Register on the Do-Not-Call list of your country (DNC, TPS, Bloctel...)
- • Report scams to the FTC, FCC, Action Fraud or your local authority
How to use the Clairmo reverse lookup
- 1
Enter the phone number
Local format (555-123-4567) or international (+1 555 123 4567, +44 20...). All formats are accepted and automatically normalised.
- 2
Run the reverse lookup
Our engine queries public directories, carrier data, community reports and open profiles in parallel.
- 3
Read the report in 30 seconds
Free preview is instant (carrier, area, line type). Full report (potential name, profiles, scam history) starts at $0.99.
- 4
Block or report
Block the contact on your phone or report the number as telemarketing / scam to help the Clairmo community.
Security tip
Never call back an unknown premium-rate number without verifying it first. If a caller claims to be from your bank, your carrier, social security or law enforcement, hang up immediately and call the official phone number printed on your card or on the official website. No legitimate institution will ever ask for a verification code, password or wire transfer over the phone.
Identify an international number
Clairmo supports reverse lookup for foreign numbers. Each country has an international dialling prefix that comes before the local number:
Frequently asked questions about unknown callers
Enter the number into Clairmo. In 30 seconds, our reverse lookup engine cross-references public directories, carrier databases and community reports to reveal who is behind the number: carrier name, geographic area, line type (mobile, landline, VoIP) and any flagged history.
Ready to know who called you?
Run your first reverse lookup now. Free preview, full report from $0.99.
Identify the number now