Mobile-based identity intelligence in real time

Lookup uses mobile-based signals to provide smooth and robust protection for digital platforms and users, minimizing fraudulent activities without compromising the experience.

Verify, secure, and optimize engagement with one integrated API

Lookup API adds a seamless layer of security to customer relationships using real-time phone data. Improve conversion and delivery rates, spot risk, and halt fraud. Then integrate with Twilio Verify, Programmable Messaging, and more to enhance your engagement solution with best-in-class security.

Improve security, conversions, and delivery at once

Reduce risk and fraud

Protect against fraud with authoritative phone intelligence data. Lookup API uses real-time risk signals to detect fraud and trigger step-up authentication when needed. Determine if a number is valid by identifying the line type as mobile, landline, VoIP, temporary number, and more. Stop fraudulent SIM swaps and fake accounts for secure relationships at scale.

• Integrate with Twilio Verify, Programmable Messaging, and more to secure uses cases for onboarding, engagement, and support.
• Spot risk signals in real-time by requesting data packages from multiple sources for accuracy and fill rates without slowdown.
• Secure accounts with high throughput for zero throttling, plus latency checks scaled to your contact list and message volume.

Increase conversions

Streamline and personalize onboarding to boost conversion rates. Enable passive authentication that doesn’t rely on user input with Twilio’s Line Type Intelligence. This frictionless feature reduces churn, lifts conversions, and integrates easily with Twilio onboarding and engagement solutions.

• Request data signals in real-time from multiple sources for superior accuracy and fill rates without slowdown.
• Reach more customers with global coverage via Twilio’s carrier partnerships and one of the largest SIM swap data networks.
• Gain insights from data signals that enhance marketing, improve key metrics, and help you make business decisions confidently.

Improve message deliverability

Increase delivery rates and cut costs with Twilio’s real-time phone number validation. Confirm if a number is legitimate before you send, distinguish mobile numbers from temporary VoIP numbers and landlines, plus verify the correct number format to reduce delivery errors.

• Integrate with Twilio Verify and Programmable Messaging for secure engagement with marketing and contact centers.
• Ensure compliance with global messaging regulations like SOC2 Type 2 for optimal delivery, plus added data residency controls.
• Secure accounts with high throughput for zero throttling, plus latency checks scaled to your contact list and message volume.

Put up-to-date phone intelligence to work at scale

Improve message deliverability

Delivery errors frustrate users who expect real-time communications. Improve contact rates by validating a number before you send. Distinguish mobile numbers from landlines, format numbers correctly, and optimize SMS routing with carrier data for optimal delivery.

Personalize messaging and voice calls

Personalization is key to a quality customer experience. Identify inbound callers globally by determining the name associated with phone number to personalize engagement over SMS and voice calls, and enhance your marketing at any scale.

Enrich data and risk models

Businesses use customer data to enrich user profiles and understand risk. Access real-time user signals like phone line type, SIM tenure, connectivity status, carrier, and more to improve risk models, scrub contact lists, and make more accurate business decisions.

Mitigate fake accounts and takeovers

Stopping SIM swap fraud, fake account creation, account takeovers, and promo abuse is a business priority. Halt takeovers when you identify risk signals of compromised numbers. Mitigate fakery with Line Type Intelligence that spots suspicious virtual numbers.

Build trusted relationships upon real-time insights

• Formatting and Validation: Validate and reformat phone numbers automatically to match national and global dialing standards for optimal deliverability.
• Line Type Intelligence: Identify the carrier and phone line type from mobile, landline, fixed VoIP, non-fixed VoIP, toll free, and more to mitigate fake accounts, scrub contact lists, and improve deliverability.
• Call Forwarding: Expose voice channel compromise and at-risk numbers with real-time access to the call forwarding status for mobile numbers. Only available in the UK.
• SMS Pumping Risk Score: Powered by advanced machine learning models, SMS Pumping Risk Score can effectively identify and flag malicious behavior associated with phone numbers involved in SMS Pumping Fraud.
• Line Status: Check if a phone number is active or reachable on its carrier network. Optimize cost and delivery by only sending messages to active contacts.
• Caller Name: Identify inbound callers then personalize outreach using the verified caller or business name to improve conversions, security, and customer experience. Only available in the US.
• SIM Swap: Detect SIM swap to stop fraud and account takeovers with timestamps and dates of any SIM changes, plus configurable risk tolerance that enables accurate modeling and metrics.
• Identity Match: Prevent bots and false account creation. Confirm the ownership of a mobile phone number by comparing user-supplied data against authoritative sources.
• Reassigned Number: Check if a phone number has been reassigned since the user's last consent date. Increase user conversion and avoid legal breach by reaching out to the right person