GCI Set to Transform Alaska's Broadband Landscape with DOCSIS 4.0 Rollout Powered by Harmonic

Harmonic's cOS Virtualized Broadband Platform Powers Multi-Gigabit Speeds
and Future-Ready Network Enhancements

SAN JOSE, Calif., Sept. 2, 2025 /PRNewswire/ -- Harmonic (NASDAQ: HLIT) today announced a landmark partnership with GCI, Alaska's largest telecommunications company, to modernize its extensive DOCSIS network and accelerate the delivery of high-speed broadband services across the state. Harmonic's industry-leading cOS™ virtualized broadband platform transforms GCI's existing infrastructure to deliver DOCSIS 4.0 services with faster speeds, greater reliability and enhanced scalability to GCI customers across Alaska.

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