US area code lookup
Type any 3-digit area code to see where it's from, or search by state name to see all its codes. All 300+ NANP codes included.
Files are processed in your browser and never uploaded.
How to use US area code lookup
Type your search
Enter what you are looking for in the search box. Matches appear as you type.
Read the answer
Results are looked up from data already loaded with the page, so there is no waiting and no request to a server.
Start over any time
Nothing is saved on a server, so reloading the page clears everything.
What this tool does
Any area code, or any state
Type a three-digit code to see the city, state and region it covers, or type a state name to see every code it uses.
All 300+ NANP area codes included
All 300-plus NANP area codes are included, which covers the US, its territories and the codes added in recent splits and overlays.
Nothing uploaded, no sign-up
Nothing you type is uploaded and there is no account to make.
Results as you type
The list narrows with every keystroke rather than waiting for a search button, so a lookup takes a second.
Runs fully in your browser with no upload and no sign-up
The whole table is held in the page, so it works with no connection once loaded.
Frequently asked questions
What is NANP?
The North American Numbering Plan (NANP) is the telephone numbering system shared by the US, Canada, and several Caribbean nations. It uses 3-digit Numbering Plan Area (NPA) codes - what everyone calls area codes - followed by a 7-digit local number.
Can a state have more than one area code?
Yes. As populations grew and mobile phones became ubiquitous, new area codes were added through splits (dividing a region) and overlays (adding a second code to the same geographic area). California alone has over 30 area codes.
What are toll-free area codes?
Numbers beginning with 800, 833, 844, 855, 866, 877 and 888 are toll-free - the receiving party pays the call cost. They are not tied to any geographic location and are used nationwide by businesses and services.
Is my data uploaded anywhere?
No. The entire area code database is embedded in this page and the lookup runs in your browser. Nothing is sent to a server.
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