API Services Available via Twilio Add-on Marketplace
RPV Turbo is the most thorough connected/disconnected service available. Hitting as many as 5 telco data points including the billing record for the larger mobile companies.
RPV Scrub is our best value and performs a quick scrub of the numbers hitting two data points on the telco switch. Great, fast product but will leave 3 to 5% of the numbers with a disposition of "unknown".