IPQualityScore Phone Validation API vs VPNAPI.io

IPQualityScore Phone Validation API validates phone numbers and scores their reputation to help identify suspicious users and invalid information in real time. It checks syntax, active connection status, carrier, line type, porting, and disconnection status, and analyzes reputation and abusive-behavior history. Coverage includes countries, carriers, and line types such as mobile, landline, VOIP, toll-free, and virtual numbers; detection includes disposable, temporary SMS, and VOIP numbers. Reverse lookups can return a subscriber or business name, with the product page reporting around 90% hit rates for most US and Canadian numbers. Queries return JSON or XML, and users can upload lists through a dashboard for batch processing. Salesforce and HubSpot integrations are listed. The API documentation advises providing at least 10 digits or a valid country for best results with short numbers. The free plan includes 1,000 lookups per month; paid access starts at $99/mo, with volume-tiered rates and no monthly contracts. A free trial is also available. The product page says support is available seven days a week, with typical responses within a few minutes.

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