Phone Number Locator
Enter any phone number to find the location it comes from, free. Works for US cell phone and landline numbers.
If you need to find someone by e-mail address, or find the e-mail addresses a person owns, try the reverse e-mail lookup tool.
About
The phone number locator allows you to quickly find the geographical area that a phone or cell phone number originates from. Locations are identified by matching the area code (NPA) and prefix (NXX) of a phone number to a latitude/longitude coordinate. This tool currently supports most phone numbers within the United States. Queries are confidential and are recorded for abuse prevention and statistical purposes only.
Landline numbers are tied to the place they were installed, so the location is usually accurate to the city. Mobile numbers are tied to the area where the number was first issued, which is not necessarily where the phone is now: someone who keeps a number after moving across the country still carries the old area code.
This finds where a number is registered, not where the handset currently is. Tracking a phone in real time requires consent from the person carrying it, through a carrier or a location sharing app, and no lookup tool can do it from the number alone.