OpenCNAM Brings First International Caller ID Name API to Twilio Add-on Marketplace

OpenCNAM Plus Coverage Map

Today telecom data API leader Telo announced that developers can now access its industry-leading, carrier-grade CNAM (Caller ID Name) API in the Twilio Add-On marketplace.

OpenCNAM is the first international Caller ID service to join Twilio’s Add-On marketplace, now available to over 1.6 million developer accounts registered on the Twilio cloud communications platform.

"Today there are more companies than ever providing their services globally using a wide range of communication technologies, but traditional CNAM is still catching up."

Chris Brunner, CEO

Accurate CNAM information packs a powerful punch for the bottom lines of the millions of businesses and organizations which receive incoming calls or SMS messages. Robocalls and spam calls cost small businesses alone more than 20 million hours every year. It can be very difficult to quantify the impact of lost opportunity when organizations are unable to identify important inbound callers. With OpenCNAM, companies can give their sales, support, and donor development teams the CNAM data they need to identify and field valuable incoming calls.

OpenCNAM provides businesses with 87 percent caller name coverage for North American numbers, and the OpenCNAM Plus service level provides the CNAM industry’s first international coverage — 57 percent on average for numbers in more than 200 countries around the world. All told, OpenCNAM provides 70 percent more North American coverage than traditional CNAM providers, far greater accuracy than non-CNAM based OTT (over-the-top) services that solely rely on contact list values or social media information, and 100 percent more caller name coverage than CNAM providers for international numbers.

“Today there are more companies than ever providing their services globally using a wide range of communication technologies, but traditional CNAM is still catching up,” said Telo CEO Chris Brunner. “Now more than ever, teams responsible for communication services are interested in adding authoritative and global CNAM data to their customers and teams. Providing this type of value-add is what will separate companies from their competitors in the coming years. Telo is committed to making OpenCNAM Plus available worldwide so companies can save time, talk to the people who matter to their businesses, and deliver service experiences that their customers find memorable,” added COO Brent James.

OpenCNAM is now available in the Twilio Add-ons Marketplace. For more information about how CNAM works and how OpenCNAM provides authoritative, Caller ID coverage worldwide, visit  

About Telo

Telo pioneered the first developer-friendly telephony data API in 2011 with the launch of OpenCNAM. Since then, Telo has expanded its developer-focused product line to include EveryoneAPI, a highly advanced reverse phone append API, and released subsequent versions of OpenCNAM extending Caller ID coverage to include over 200 countries.

Today, with a team steeped in telecommunications and modern technology experience, Telo is committed to leading data services innovation. Telo’s APIs supply advanced systems worldwide with information rooted in authoritative telecommunication data that is augmented through learning algorithms with intelligently vetted and continuously analyzed data.

Media Contacts
OpenCNAM by Telo​
Brent James

Source: Telo

About Telo

We build and support developer friendly data APIs. As developers, we know that some APIs can be a pain. Our focus is on accuracy, speed, reliability, documentation and simplicity.

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Atlanta, Georgia


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