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Sinch Number Lookup

Validate and enrich phone numbers with Sinch Number Lookup API

Number Lookup

AI-generated

Summary

Validates and enriches a phone number through the Sinch Number Intelligence API, returning selected carrier, country, line type, porting, and risk details.

Inputs

  • phoneNumber (required) — The phone number to lookup. E.164 format recommended. Before the API call, all characters except digits and '+' are removed.
  • lookupType — The type of lookup to perform: Standard (basic validation and carrier info) or Enhanced (detailed information including porting status).
  • returnFields — Which fields to include in the response: carrier, country, lineType, porting, or riskScore. Defaults to carrier, lineType, and country.

Output shape

phoneNumber, countryCode, numberType, valid, validation { valid, formatted }, plus any selected optional fields: carrier, lineType, country, riskScore, ported.

One output item per input item. Fields omitted by Return Fields are not present in the output.

Examples

Example 1: Validate a phone number before sending SMS in a customer onboarding flow.

Looks up a phone number and returns carrier, line type, and country.

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