Phone number validation

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Device Type: 
Validate

Phone number validation

Validate the legitimacy of customer phone numbers to reduce delivery errors.

  • Based on the number format, identify the country, time zone, and validate if it is assigned to a subscriber

  • Minimize fraud while ensuring a verified way to contact customers in the future

  • Discover current and original carrier to optimize SMS routing

  • Control costs and avoid wasteful marketing spend

Security

Fraud detection and step-up verification

Prevent costly fraudulent transactions using updated phone number intelligence.

  • Identify possible fraudulent activity and trigger step-up authentication when needed

  • Reduce customer friction with additional steps only for suspected numbers
  • Leverage Identity Insights to deliver real-time phone number intelligence that enhances your risk decision engine

  • Determine if a phone number is valid and block synthetic identities through carrier KYC records

  • Add a second layer of security with Verify 2-Factor Authentication

  • Detect SIM Swap fraud: Identify if a phone's SIM was recently changed

ONBOARDING

Onboarding and KYC

Use Subscriber Match to streamline onboarding and validate users with trusted carrier data — no documents, no drop-offs.

  • Cross-check user attributes (name, address, and date of birth) against mobile operator KYC records in real time

  • Speed up onboarding and increase conversions by removing manual steps

  • Replace manual document reviews with instant, automated KYC

  • Prevent synthetic identity fraud by detecting mismatched or fake information

  • Confirm user age by validating date of birth through verified carrier records

Get the whitepaper
Zero Trust: How Network-Powered APIs are Changing the Game
This whitepaper explores how businesses can stay ahead of identity-based attacks and implement smarter, seamless security without compromising the user experience.
Outside the US: Local Numbers
Wed Apr 29 2026 16:04:08 GMT-0400 (Eastern Daylight Time)