AT&T plans to go from having 5 percent of its software built on open source to 50 percent, and it’s on track to hit that mark, according to John Donovan who spoke at AT&T’s Developer Summit (a pre-Consumer Electronics Show event) today.

The service provider has been working with industry groups like OpenDaylight, OPNFV, the Open Network Operating System (ONOS), and OpenStack.

For example, it’s building its AT&T Integrated Cloud (AIC) technology in OpenStack. AIC nodes are the physical locations where AT&T runs virtual network functions (VNFs). Its goal was to deploy 69 of these nodes in 2015, and it beat that, deploying 74.

“We’re asking developers to continue to support OpenStack and to make their applications cloud-native whenever possible,” wrote Donovan in a related blog.

He also appealed to the open source developer community to help with Internet of Things (IoT) initiatives. For example, AT&T today announced the commercial launch of Flow Designer, a cloud-based tool to let IoT developers build new applications. But interoperability is a challenge in the IoT space.

“We think the open source developer community has a huge role here," he says. "OpenDaylight is spearheading a project called the Internet of Things Data Management project. We hope this project, or a similar effort, gets the support it needs.”

Donovan touted the AT&T Foundry, comprised of five innovation centers in Silicon Valley, the Dallas area, Atlanta, and Israel. The Foundry sites are used to develop, test and commercialize new products. And AT&T is opening a sixth Foundry, this one focused on connected health, which will be located at the Texas Medical Center.

Finally, AT&T recently created an open source big data visualization tool called Nanocubes, which gives a real-time map of potentially billions of data points from across the network to help manage the data.