How to Confirm Phone Number Ownership with Lookup Identity Match in PHP
Blog post from Twilio
Twilio’s tutorial explains how to use Lookup Identity Match in a PHP application to help confirm that a person is associated with a submitted phone number and reduce fraudulent sign-ups. The service compares supplied identity details, such as names, addresses, national IDs, or dates of birth, against authoritative sources including mobile carrier records, returning match statuses and a summary score without exposing underlying personal data. The example builds a Slim Framework application with Twig templates, collects a user’s first name, last name, and E.164 phone number, then sends these details to Twilio’s Lookup API through the PHP SDK. It treats exact and high-partial first- and last-name matches as successful when the phone number is valid, while displaying an error for unsuccessful matches. Identity Match is available without carrier approval for U.S. and Brazilian numbers, while several other supported countries require registration and approval, and the tutorial notes that applications can be expanded with capabilities such as line-type intelligence, SIM-swap detection, and phone verification.
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