Area Code to State Lookup & lead geography

Upload your phone list and instantly see which US state each number belongs to, using the NANPA area-code map. Get lead counts by state, spot toll-free and premium numbers, and export an annotated file or leads grouped state by state.

How it works

  1. 1

    Upload leads

    Drop in your phone list in any supported format.

  2. 2

    Detect states

    We map each number's area code to its US state using the NANPA data.

  3. 3

    Review the breakdown

    See lead counts by state, plus toll-free and premium-number flags.

  4. 4

    Export by state

    Download an annotated file, or your leads grouped state by state.

Why teams use it

Frequently asked questions

How accurate is the state detection?

It uses the official NANPA area-code assignments (342 codes) mapped to US states — free and accurate for landline-origin geography.

Does it detect mobile vs landline or WhatsApp?

State detection is included and free. Carrier / line-type / WhatsApp detection needs a paid lookup API and can be added on request.

Can I export leads grouped by state?

Yes — download a single annotated file, or a separate file per state.

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