RealValidito - Phone Validator | Free Phone Number Validation & Phone Number Lookup Service | Realvalidito
Truecaller - Find a person by a name or phone number worldwide for free using Truecaller.
Numverify - Global phone number validation and lookup API
WhosCall - WhosCall is a reliable caller ID app whose popularity has led to its adoption by many users including international media. You can now manage the numbers calling you regardless of whether they are part of your contact list or not... read more.
Clearout Phone - Phone Number Validation - Accuracy Guaranteed, GDPR Compliant, Abuse Phone Number Checker, Real-Time API 99.999% Uptime - Free Trial With 100 Credits!
CallApp - Free Caller ID & Call Blocker app that allows mobile users to block phone calls, identify calls, blacklist unwanted callers and much more.