PRIME FiBER, an open-access fiber infrastructure provider, backed by InLight Capital, announced the start of construction on its high-speed fiber network in Sun City, Arizona.

The build, part of PRIME FiBER’s wholesale fiber broadband services agreement with AT&T, follows a ceremonial groundbreaking held on June 18^th and marks a key milestone in PRIME FiBER’s expansion in Arizona. It also represents the second U.S. state where PRIME FİBER is actively building open-access infrastructure, following its deployments in Florida.

“This is a big moment for Sun City,” said George Karatzis, Chief Build Officer at PRIME FiBER. “Our team is proud to officially kick off construction and begin delivering the kind of infrastructure that helps communities thrive. We’re focused on building networks that bring faster speeds, greater reliability, and long-term value to local residents.”

“We are committed to delivering fast, reliable internet for our customers across the country,” said Caleb Deerinwater, SVP Transformation and Enablement at AT&T.  “Our collaboration with PRIME FiBER in Sun City will bring us one step closer to our goal of reaching 60 million fiber locations in the U.S. by the end of 2030.”

The Sun City project is part of a broader deployment by PRIME FiBER to deliver high-speed fiber internet across the metroplex, including Peoria and the City of Phoenix. The first service areas in Sun City are expected to go live in the coming months.