Unlock the power of the phone number
Telesign puts the intelligence from more than 5 billion unique phone numbers, 2,200 digital identity signals, and a fraud consortium represented by some of the largest internet properties in the world right at your fingertips. We transform the humble phone number into a trust anchor that’s rooted in global reach, speed, and accuracy.
Increase messaging efficacy
Improve delivery rates, optimize databases, and reduce wasted messaging costs.
Minimize fraud and risk
Make smarter, more accurate risk-based decisions with real-time mobile insights.
Gain customer insights
Verify the identity of every customer who enters your ecosystem.
Clients who use this product
Increase message delivery
Build a smarter, more cost-effective messaging stack. Phone ID helps you increase delivery rates while eliminating erroneous messaging costs. With phone number validation, you can confirm phone type for intelligent, real-time channel routing. Automatically cleanse phone numbers based on international dialing rules.
Routing optimization
Intelligently route calls and messages based on phone type to increase deliverability rates.
Eliminate wasteful messages
Prevent messages from being sent to unreachable, fraudulent, or invalid phone numbers.
Number and database cleansing
Ensure your customers’ phone numbers are accurate and properly formatted.
Minimize fraud and risk
Keep your customers and platform protected. Phone ID uses global mobile identity attributes to help you prevent identity theft, safeguard accounts, and navigate global compliance laws. Streamline user flows, strengthen internal risk models, and de-risk communication frameworks with Phone ID.
Prevent identity theft
Digitally verify the identity of every new user that accesses your platform.
Safeguard customer accounts
Unlock critical ATO risk signals and detect if an OTP is at risk of being intercepted.
Navigate global compliance laws
Prevent costly fines and maintain global messaging compliance such as TCPA, HIPAA, and PSD2.
Gain customer insights
Get to know your customers by tapping into the powerful data that sits behind their phone numbers. Use Phone ID to access and confirm customer contact information. Enhance your risk models with phone and subscriber data attributes.
Streamline onboarding flows
Layer mobile identity data into onboarding flows to automatically collect or confirm contact information.
Strengthen internal risk engines
Plug mobile identity attributes into your internal risk models.
Tap into mobile identity datasets with a few lines of code
Our easy-to-use Phone ID APIs and in-depth documentation makes it quick and easy to layer mobile identity into your communication and fraud prevention workflows.
Explore the Phone ID docs Try for free➔
curl --request POST \
--url https://rest-ww.www.telesign.com/v1/messaging \
--header 'accept: application/json' \
--header 'content-type: application/x-www-form-urlencoded' \
--data phone_number=15558675309 \
--data 'message=Hello world!' \
--data message_type=ARN
End-to-end mobile identity
Reformat global phone numbers to meet country code dialing standards and improve deliverability instantly with Phone ID API. Receive subscriber characteristics including mobile device-type, telecom carrier name, and phone registration information in real-time. Need more even more data? We've got you covered.
Number lookup
Reduce failed call and message attempts by confirming the validity, reachability, and legitimacy of a phone number.
Delivery optimization
Maximize delivery speed and completion rates. Intelligently route calls based on phone type and automatically cleanse phone numbers for better delivery.
Identity proofing
Deploy frictionless, low-cost verification. Verify name, address, and more to streamline and support identity verification, KYC workflows, and prevent synthetic identity theft.
ATO protection
Unlock critical ATO risk signals and instantly detect if a phone number has been SIM-swapped, ported-out or call-forwarded.
Risk profiling
Strengthen internal risk models with subscriber attributes, number deactivation status, porting history, and more to make smarter risk-based decisions.
Age verification
Prevent underage users from accessing adult products, content, and services, which protects your business and your customers.