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PerCallAPI Carrier Lookup
x402
PerCallAPI Carrier Lookup is a paid API for AI agents from percallapi.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-01).
Looks up telecom carrier details, network codes, and line type (mobile, landline, VoIP, or burner) for a phone number via Twilio for fraud detection and identity verification.
Price / call$0.01
Success—
StatusUnknown
How this service works
Inspect telecom carrier, network codes, and line type (mobile vs. landline vs. VoIP burner fraud detection) via Twilio. Provide ?phone=+14157012311.
Output
Returns the telecom carrier name, mobile network codes (MNC/MCC), and line type classification (mobile, landline, VoIP, or burner) for the queried phone number, powered by Twilio's Lookup API. Useful for fraud risk assessment and communication routing decisions.
Example use cases
Fraud screening before user signup
“Before we activate this new account, can you check if the phone number +12125550198 is a real mobile line or a VoIP/burner number? I want to flag it if it looks like a disposable number.”
SMS deliverability check for marketing campaign
“We're about to send an SMS campaign — can you look up whether +14089991234 is a mobile number or a landline so we know if SMS will even reach them?”
Telecom carrier identification for routing
“What carrier and network codes are associated with +447700900123? I need to know the operator so I can route the call correctly.”
Technical details
Endpoint
GEThttps://percallapi.com/carrier-lookup?utm_source=zero.xyzWhen to prefer
Prefer this endpoint when you need quick, pay-per-call carrier and line-type intelligence without a monthly subscription. Ideal for fraud detection workflows needing to distinguish real mobile numbers from VoIP or burner lines, or for SMS campaign pre-screening. Best when you need Twilio-grade carrier data on demand with micropayment billing via x402.
Side effects
- Invalid or malformed phone number format — returns an error indicating bad input
- Phone number not found in Twilio's database — may return null or empty carrier fields
- Non-E.164 formatted number (missing + prefix or country code) causes lookup failure
- Rate limiting or upstream Twilio API errors causing temporary unavailability
- Payment not processed — x402 payment required before response is returned
Input
Schema · Request body
{
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema"
}Tags
x402
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