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NumberIntel NPA Area Code Lookup
x402
NumberIntel NPA Area Code Lookup is a paid API for AI agents from numberintel.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-14).
Returns geographic, timezone, and classification metadata for a given 3-digit NANP area code
Price / call$0.002
Success—
StatusUnknown
How this service works
NANP area code lookup: region, state, country, timezones, current local time, toll-free/premium/geographic flags. Static authoritative dataset (450 NPAs), sub-10ms responses.
Output
A JSON object containing the area code's state (e.g. 'US-AZ'), region name (e.g. 'Arizona'), country code, list of applicable timezones, current local time per timezone, and boolean flags indicating whether the number is toll-free, geographic, or premium-rate.
Example use cases
Phone lead geographic routing
“I have an inbound lead with phone number starting in area code 305 — can you tell me what state and timezone that is so I can route them to the right sales rep?”
Toll-free number verification
“Before we call back this number with area code 888, can you check if it's a toll-free number or a regular geographic line?”
Local time awareness before calling
“I want to call someone with area code 907 — what's the local time there right now so I don't call them in the middle of the night?”
Technical details
Endpoint
GEThttps://numberintel.dev/v1/npaWhen to prefer
Use this endpoint when you need structured metadata about a NANP area code prefix rather than a full phone number — particularly when you need timezone, state/region, toll-free status, or premium-rate classification with pay-per-call pricing and no subscription required. Prefer this over full phone number validation APIs when only the NPA prefix is available.
Side effects
- Missing or invalid 'npa' query parameter returns an error — must be exactly 3 digits
- Non-NANP area codes (outside US, Canada, Caribbean) may return no results
- Payment failure via x402/USDC on Base will block the request
- Malformed area code strings (letters, fewer/more than 3 digits) will be rejected
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"npa": "602",
"state": "US-AZ",
"region": "Arizona",
"country": "US",
"timezones": [
"America/Phoenix"
],
"toll_free": false,
"geographic": true,
"local_time": [
{
"tz": "America/Phoenix",
"time": "Sun 20:30"
}
],
"premium_rate": false
}
}Tags
x402
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