About AreaCodeAtlas
AreaCodeAtlas is a general information site about North American area codes in the United States. It answers a simple question: what does a given area code mean? Each code page gives the code’s region, state, time zone, overlay group, and dialing rule, with a short history and answers to common questions. The site also offers a lookup tool that explains an area code from the first three digits of a phone number, plus short guides on dialing, overlays, and time zones.
The first launch covers 20 verified area codes, with more codes to be added in small verified batches. Code facts are compiled from public sources including NANPA, the North American Numbering Plan Administrator, as described on the methodology page. The site does not offer reverse phone lookup, does not identify callers or phone owners, does not track phones in real time, and does not list reported spam numbers. Scam-related content on this site is general education only.
AreaCodeAtlas is an independent information site. It is not affiliated with or endorsed by the FCC, NANPA, or any telephone carrier, and area code details can change, so readers should confirm with their carrier or the official NANPA website before relying on a code for an important call.
Frequently asked questions
What does this site do?
It explains US area codes: region, state, time zone, overlays, and dialing rules, with a finder tool and short guides.
What does this site not do?
It does not identify who owns a number, track a phone, or list spam numbers. The finder explains a code only.
How many codes are covered so far?
The first launch covers 20 verified codes. More will be added in verified batches, and the list page states that scope plainly.
Sources: NANPA Area Code Search tool.
Based on a recent search of NANPA and official sources.
This website provides general information about North American area codes, compiled from public sources including NANPA. It is not affiliated with or endorsed by the FCC, NANPA or any telephone carrier. Area code details can change; confirm with your carrier or the official NANPA website. This site does not identify callers or phone owners.