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Phone Number Carrier & Line Type Lookup (libphonenumber)
x402
Phone Number Carrier & Line Type Lookup (libphonenumber) is a paid API for AI agents from api.fadeandco.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-29).
Parses an international phone number and returns its country, line type, formatted variants, and originally-allocated carrier using Google's libphonenumber metadata — no live HLR query.
Price / call$0.002
Success—
StatusUnknown
How this service works
Parses an international phone number (E.164), checks it against Google's open libphonenumber metadata, and returns the country, line type (mobile, fixed line, fixed-or-mobile, VoIP, toll free, premium, pager and more), E.164/international/national formats and the carrier that the number range was originally allocated to. Not a live HLR query: ported numbers keep the original carrier and active/inactive status is not checked.
Output
A JSON object containing: valid flag, E.164/international/national formatted phone strings, region code (e.g. TR), country calling code (e.g. 90), national number, line type (MOBILE/FIXED_LINE/VOIP/TOLL_FREE/PREMIUM_RATE/PAGER/FIXED_LINE_OR_MOBILE), carrier name, carrier prefix, number portability note, data source URL, and a timestamp. Includes a prominent note that this is offline range data and cannot detect porting or active/inactive status.
Example use cases
SMS channel pre-qualification check
“Before we send the marketing SMS blast, can you check whether +442079460000 is actually a mobile number or a fixed line? I need to know the line type and country so we can decide which channel to use.”
Fraud triage on signup phone
“A user just signed up with the number +18005551234 — can you tell me if it's a toll-free or VoIP number and which carrier range it was originally assigned to? I want to flag suspicious number types before approving the account.”
CRM phone number normalization
“I have this phone number from a European lead: 00442079460000 — can you parse it into proper E.164, international, and national formats and tell me which country and carrier it belongs to?”
Technical details
Endpoint
GEThttps://api.fadeandco.workers.dev/api/agent-intel/phone-carrier-hlr-lookup?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need fast, offline phone number classification — country, line type, and original carrier — from libphonenumber metadata, without needing live network status or real-time HLR queries. Ideal for pre-send SMS channel validation, fraud screening of VoIP/toll-free numbers at signup, and CRM phone normalization. Prefer it over live HLR services when cost, latency, or privacy constraints make real-time carrier lookups undesirable, and when knowing whether a number is active or ported is not required.
Side effects
- Invalid or unparseable phone number returns valid:false with no carrier or line type data
- Missing required 'number' query parameter returns an error response
- Numbers from regions without libphonenumber metadata may return incomplete carrier or line type data
- Ported numbers will show the original range carrier, not the current carrier — this is by design and noted in the response
- Premium/toll-free/pager classifications may vary by region due to metadata completeness
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"e164": "+905321234567",
"note": "Offline range data (libphonenumber), not a live HLR lookup: it cannot tell whether the line is active or ported.",
"input": "+905321234567",
"valid": true,
"region": "TR",
"source": "https://raw.githubusercontent.com/google/libphonenumber/master/resources/PhoneNumberMetadata.xml",
"carrier": "Turkcell",
"formats": {
"e164": "+905321234567",
"national": "0532 123 45 67",
"international": "+90 532 123 45 67"
},
"lineType": "MOBILE",
"checkedAt": "2026-10-23T09:35:22.990Z",
"carrierPrefix": "+9053",
"nationalNumber": "5321234567",
"numberPortability": "Region allows porting: the carrier is the original range holder and may have changed.",
"countryCallingCode": 90
}
}Tags
x402
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