The industry’s largest and most accurate phone data and telephone number database

With the rise of mobile devices, the industry has changed dramatically over the past three decades. Despite this shift, the strength of phone numbers to identify customers is still strong. Alesco’s Phone ID database ties together a consumer’s true identity, giving you the ability to solve today’s most challenging marketing, analytics, and identity resolution problems.

600+ Million Phone Numbers

Our telco records are updated monthly and linked to consumer or business name that includes landline, cell phone number, VoIP, private and business phone numbers. All records are permissibly obtained, privacy-compliant and linked to our databases.

Accuracy and Validation

Each of Alesco’s phone data sources are vetted to ensure they are authoritative, giving you the confidence in the accuracy of the information. All records are validated, verified, and processed to ensure the most reliable coverage.

Ease of Use

Alesco’s Telco Database file is available as an on-premise phone database license, giving you full control to host and access this powerful resource on-site. Ongoing updates are provided monthly to ensure your data is always up-to-date.

Our Process

Our proprietary machine learning and advanced analytics processes ensure quality levels far above industry standards. We process over 100 million phone signals per day, and phone information from 37 input sources.


Using phone numbers to link records and resolve identities gives marketers powerful insight into the complete profile of a customer.

Deliver Relevant Messaging

True Insight enables the delivery of relevant messages to the right people at the right time in an environment where keeping pace with customers is crucial. The time between a new prospect showing interest and completing a purchase or going to a competitor can happen in less than a minute.

Increase ROI

All types of organizations understand the importance of increasing ROI and improving their experience – startups, AdTech and MarTech firms, major brands, lead generators, financial services and lending firms, higher education institutions, nonprofits and more. Our Telco database helps you achieve higher ROI by identifying potential customers who are most likely to be interested in your product and/or service.

Industry Example: Moving Companies

Effectively reach prospects as they begin researching moving companies to assist in their transition to a new home. With our life event trigger data, you have the ability to reach these customers in the ‘pre-mover’ phase of the moving process. We can help you target audiences by specific locations, neighborhoods or suburbs, as well as specific product searches like ‘moving boxes’, ‘packing tape’, and ‘local moving companies’. By narrowing down to these specific audiences, you will be able to reach potential customers who are most likely to hire movers.





Life Events



Ready to Get Started?

Complete the form below to schedule your personalized consultation with one of our experts.

3 + 15 =

By submitting this form, you agree to Alesco Data's privacy policy