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AgentTools US Area Code Lookup
x402
AgentTools US Area Code Lookup is a paid API for AI agents from agentstoolshub.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-12).
Look up the US state or territory for a given telephone area code, or list all area codes for a given state, covering all 404 NANP codes including overlays.
Price / call$0.002
Success—
StatusUnknown
How this service works
Look up any US telephone area code to find the state or territory it serves, or list every area code in a given state. Covers all 404 NANP codes in use, including overlays. Use this when an agent needs to all 404 NANP area codes → state lookup.
Output
Returns the state or territory associated with a given area code, or a list of area codes (with their associated states) filtered by state. Covers all 404 active NANP area codes including overlay codes.
Example use cases
Identify caller location by area code
“Someone just called me from a number starting with 617 — what state or region does that area code belong to?”
List all area codes for a state
“Can you pull up every area code currently in use in California, including any overlays?”
Validate phone number geographic origin
“I have a customer phone number with area code 939 — is that a valid US area code and what territory does it serve?”
Technical details
Endpoint
GEThttps://agentstoolshub.com/api/v1/databases/area-codes?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need authoritative US/territory area code to state mapping, especially if you need to handle overlay codes or enumerate all area codes for a given state. It covers all 404 active NANP US codes and is purpose-built for this lookup, making it more reliable than scraping or general-purpose geocoding APIs for phone number geography.
Side effects
- Invalid or non-existent area code returns empty result or error
- State name misspelling or incorrect abbreviation may return no results
- Requesting a Canadian or other NANP country code may return no match since coverage focuses on US territories
- Exceeding the limit parameter may truncate results without warning
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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