Identify Unknown Phone Numbers with JavaScript, Twilio Lookup and SMS

This app will use three Twilio APIs: Functions, Lookup, and SMS. The app will send a text message to its own phone number with the phone number of the incoming message. The Functions API will then perform a Lookup on the received number using the Lookups API, which will return the caller's name if available. If the number is valid but no caller name is found, the app will respond with a message indicating that it couldn't associate a name with that number. If the number is invalid, the app will respond with an error message asking the user to try sending the number again.

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