In this post, you learned how to verify phone number ownership with Twilio using ASP.NET Core Identity and Razor Pages. You created a typed client for the Twilio Verify API that uses best practices like HttpClientFactory, and used it from Razor Pages to send verification codes via SMS to users' phones. The code provided examples of creating pages for collecting user input, checking verification codes, and displaying confirmation success messages. After verifying ownership of a phone number with Twilio's Verify API, you could be confident that the user had access to their phone number. The example demonstrated how to integrate Twilio Verify into an ASP.NET Core Identity application using Razor Pages, providing a basic approach for implementing phone number verification in a real-world scenario.