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IPQualityScore Phone Validation API
Las Vegas, Nevada, USA
What it is
IPQualityScore Phone Validation API checks 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, while analyzing reputation and abusive behavior history. Coverage includes countries, carriers, and line types such as mobile, landline, VOIP, toll-free, and virtual numbers. The service can detect disposable, temporary SMS, and VOIP numbers. Reverse lookups can return a subscriber or business name; the product page reports 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. For short numbers, the API documentation recommends supplying at least 10 digits or a valid country for best results. The free plan includes 1,000 lookups per month, and paid access starts at $99/mo, with rates tiered by monthly volume and no monthly contracts. A free trial is also available.
For and against
For
- Supports real-time API queries in JSON or XML.
- Checks carrier, line type, porting, and connection status.
- Offers dashboard batch processing.
- Free plan includes 1,000 monthly lookups.
- Salesforce and HubSpot integrations are listed.
Against
- Short numbers work best with at least 10 digits or a valid country.
- Paid access starts at $99/mo.
- Monthly pricing is tiered by lookup volume.
The verdict
IPQualityScore Phone Validation API combines number checks with reputation signals, reverse lookups, and batch processing. Consider its input guidance and monthly lookup pricing when assessing fit.
Who it suits
The API may suit developers and organizations that need phone validation or reputation signals, including lead-generation teams, call centers, SaaS services, ecommerce retailers, and financial institutions. Dashboard batch processing is available for users working with lists.
Plans and prices
Free
up to 1,000 lookups/month · API access · CSV uploads · live lookup tools
Read 15 Oct 2026 · ipqualityscore.com
Phone validation usage
tiered flat-rate pricing across countries · volume discounts
Read 15 Oct 2026 · ipqualityscore.com
Phone Validation API
1,000 free lookups per month · rates decrease with monthly volume · additional DNC scrubbing and TCPA litigator checks available
Read 2 Oct 2026 · ipqualityscore.com
On the record
- Accuracy claim
- IPQS says its data scientists maintain over 99% accuracy analyzing user data including US, Canadian, and international phone numbers.ipqualityscore.com · read 2 Oct 2026
- Add-on limits
- Active-line, DNC, identity, associated-email, TCPA and phone-recycling signals require account upgrades or optional add-ons; DNC coverage is limited to the US and Canada.ipqualityscore.com · read 15 Oct 2026
- API controls
- Requests support country selection, strictness levels from 0 to 2, custom tracking variables and a fraud-reporting endpoint.ipqualityscore.com · read 15 Oct 2026
- API formats
- The public API exposes JSON and XML endpoints and accepts API keys in URLs, GET or POST parameters, or the IPQS-KEY header.ipqualityscore.com · read 15 Oct 2026
- API input note
- The API documentation advises supplying at least 10 digits or a valid country for best results with short numbers.ipqualityscore.com · read 2 Oct 2026
- Bulk validation
- Users can upload CSV lists for batch phone validation and reputation analysis.ipqualityscore.com · read 15 Oct 2026
- Company identity
- The legal entity is IPQualityScore LLC, a privately held company founded in 2011 and headquartered in Las Vegas, Nevada.crunchbase.com · read 15 Oct 2026
- Company size
- LinkedIn lists IPQS as having 51–200 employees.linkedin.com · read 15 Oct 2026
- Coverage
- IPQS says its phone validation supports all countries, carriers, and line types, including mobile, landline, VOIP, toll-free, and virtual numbers.ipqualityscore.com · read 2 Oct 2026
- Data retention
- The privacy policy says submitted fraud-service data is generally retained for about one year before deletion or de-identification.ipqualityscore.com · read 15 Oct 2026
- Developer examples
- The getting-started documentation includes request examples and code samples for PHP, Python and other HTTP clients.ipqualityscore.com · read 15 Oct 2026
- Disposable and VOIP detection
- The product identifies disposable, temporary-SMS and VOIP numbers and can flag prepaid lines.ipqualityscore.com · read 15 Oct 2026
- HLR status
- Optional HLR and carrier data can indicate whether a number is active, ported or disconnected.ipqualityscore.com · read 15 Oct 2026
- Identity enrichment
- Reverse lookups can return a subscriber or business name, with the product page reporting around 90% hit rates for most US and Canadian numbers.ipqualityscore.com · read 2 Oct 2026
- Integrations
- Listed integrations include WordPress, Shopify, Magento, Salesforce, HubSpot, Twilio, Stripe, PayPal, Splunk, CrowdStrike, Alloy and Accertify.ipqualityscore.com · read 15 Oct 2026
- International coverage
- The API supports landline and cellular numbers in more than 150 countries and covers all stated carrier and line types.ipqualityscore.com · read 15 Oct 2026
- Limit: Capterra users
- Complaints include a large pricing gap between free and enterprise options, a learning curve, limited analytics and requests for geolocation fields.capterra.pt · read 15 Oct 2026
- Limit: G2 users
- Reviewers mention occasional import delays, integration effort, limited integrations and pricing that can be heavy for small organizations.g2.com · read 15 Oct 2026
