397 in-service U.S. codes · official numbering-plan snapshot
Area code lookup that finishes the whole task.
Paste a phone number or search a code, city, or state. Get the useful answer first, then inspect overlays, local time, related codes, and an honest approximate map.
- No account
- No ads before the result
- No GPS or caller tracking
- Free to use
One field, four useful lookup paths
Enter a 3-digit area code, a U.S. phone number, a supported city, or a state.
NANPA snapshot
08/04/2026
Fast paths
Popular area codes
Direct server-rendered pages stay useful even without JavaScript.
What the result means
Accurate where the data is exact. Explicit where it is approximate.
- 01 · Identify
Extract the area code
Three digits or a full U.S. number routes to the matching in-service NPA.
- 02 · Explain
Show numbering-plan facts
Jurisdiction, service type, time zone, in-service date, and every known overlay peer.
- 03 · Orient
Map without false precision
Optional maps use a city or state orientation point and clearly reject caller-location claims.
Browse
56 jurisdictions and 42 city guides
Directories exist to help complete real city and state lookup tasks—not to create empty permutations.
On this device
Recent lookups
Stored only in this browser.
Common questions
Area code lookup FAQ
Can an area code reveal a caller's exact location?
No. It identifies a numbering-plan region or service, not the current physical location or identity of a phone or caller.
Why can one place have several area codes?
Overlays assign multiple area codes to the same geographic service region when numbering demand grows. Overlay peers are shown together.
Are map boundaries exact?
No. The map is a city- or state-level orientation aid. Area codes do not provide a reliable street-level caller location.
Does the lookup support full phone numbers?
Yes. A 10-digit U.S. number, or an 11-digit number beginning with 1, is reduced to its first three numbering-plan digits. The rest is not used to identify a person.