PHONE LOOKUP
One number. One clear answer.
Enter a US number and find the available numbering information: area code, state, city, line type and the carrier the block was originally assigned to.
START YOUR SEARCH
Where is this number from?
You can type it with spaces, dashes or the country code +1.
10 digits to see the carrier and line type of the number
Unofficial project made by enthusiasts. Not affiliated with NANPA, the FCC or any carrier.
READ THE DATA IN CONTEXT
What the result means.
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Associated area
The area code links the number to a region. Each area code page shows its map, cities, carriers and prefixes.
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Assigned block
The numbering data identifies the block of 1,000 or 10,000 numbers the number belongs to, when it is in our database.
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Portability
A line can change carrier and keep its number. The carrier of assignment may differ from the current carrier.
FAQ about the US number lookup
What is the US phone number lookup?
A tool to look up US phone numbers. Enter 10 digits to see, when available, the area code, state, city, line type, time zone and the carrier the number block was originally assigned to.
How does the lookup work?
You enter the 10-digit number, the system normalizes the format and searches the area code and the three-digit prefix (NXX) in our numbering database, then shows the data it finds.
What information does it provide?
- Line type: mobile, landline or VoIP, if the block is identified.
- Carrier: the carrier originally assigned the block; it can differ from the current one.
- Area code: with a link to its full page.
- Place: state and main city of the area code, not the exact location of the phone.
- Time zone: and the local time there.
Does it tell me who is calling?
No. The lookup identifies the region and the carrier of the number block; it does not identify the person or company that owns the number, and scammers can fake any number.
Is the carrier shown the current one?
Not necessarily. Because of number portability, a number can be with another company today. We show the original assignment, not a confirmation of the current provider.
How do I dial a US number from abroad?
Dial your country exit code (or +), then 1, then the area code and the seven-digit number: +1 212 555 0123.
Is it free?
Yes. You can look up US numbers on this site without registering or paying for each search.
Can I look up numbers from other countries?
This lookup is built for US numbers (+1). For other countries, see the Mexico, Argentina, and Chile guides linked in the footer.
What happens if the number is not identified?
We show the data we do know, such as the area code, without inventing a carrier or a place.