How to Validate Phone Numbers in Python — Free API with Fraud Risk Scoring Every app that collects phone numbers faces the same problem: users enter junk . Typos, fake numbers, VoIP burners, numbers from the wrong country — you only find out when your SMS campaign bounces or a fraudster slips through. This tutorial shows how to validate phone numbers in Python and JavaScript using a free API that returns not just validity — but carrier info, line type, and a fraud risk score . The API: Phone Validator Pro 👉 Phone Validator Pro on RapidAPI 240+ countries Line type detection: MOBILE / LANDLINE / VOIP / TOLL_FREE Carrier identification Timezone info Batch endpoint (up to 50 numbers) Sample Response { "is_valid" : true , "international_format" : "+1 212-555-2000" , "e164_format" : "+12125552000" , "country" : "United States" , "carrier" : "AT&T" , "line_type" : "MOBILE" , "timezones" : [ "America/New_York" ] } Enter fullscreen mode Exit fullscreen mode Python Example import requests def validate_phone (…