RealPhoneValidation VS Addressify

Numverify - Global phone number validation and lookup API

Smarty - Smarty provides address validation, autocomplete, geocoding and reverse geocoding services covering addresses in over 240+ countries.

RealValidito - Phone Validator | Free Phone Number Validation & Phone Number Lookup Service | Realvalidito

Addressy - Addressy is address verification software that captures and verifies addresses on websites.

Clearout Phone - Phone Number Validation - Accuracy Guaranteed, GDPR Compliant, Abuse Phone Number Checker, Real-Time API 99.999% Uptime - Free Trial With 100 Credits!

Experian Address Verification API - Experian provides Address Verification API for accurate, complete USPS addresses with minimal data entry.