Dark Fiber Market to Witness Significant Growth
Dark fiber market is witnessing significant growth owing to the increasing demand for high-speed internet connectivity, rising deployment of 5G networks, and growing investments in fiber-optic infrastructure across the globe. The increasing need for secure, scalable, and low-latency network solutions among telecom, BFSI, medical, oil & gas, and railway sectors is significantly driving market expansion. In addition, the rapid growth of cloud computing, data centers, and edge computing technologies is further accelerating the adoption of dark fiber networks. Increasing internet penetration and rising bandwidth consumption across emerging economies are also expected to support market growth during the forecast period.
Browse the full report description of “Dark Fiber Market Size, Share & Trends Analysis Report, By Fiber Type (Single Mode and Multi-Mode), By Network Type (Metro and Long Haul), By Application (Telecom, Oil & Gas, BFSI, Medical, and Railway), Forecast Period (2022-2028)” at https://www.omrglobal.com/industry-reports/dark-fiber-market
January 2026 – Uniti Group expanded dark fiber infrastructure for AI data center demand
In January 2026, Uniti Group through Uniti Wholesale announced a major expansion of its dark fiber network across the South-Central United States. The project adds approximately 1,100 route miles of ultra high-capacity fiber infrastructure backed by a 20-year customer contract valued at more than $500 million. The expansion is specifically aimed at supporting rising hyperscale AI and data center connectivity demand across high-bandwidth computing environments. The development also reflects increasing investment in scalable and low-latency fiber infrastructure required for artificial intelligence, cloud computing, and next-generation digital networking applications.
2025 – Prysmian invested in hollow-core fiber technology for next-generation dark fiber networks
In 2025, Prysmian invested in Relativity Networks following an earlier agreement to industrialize hollow-core optical fiber technology at scale. The technology is designed to enable ultra-low latency transmission, reduced signal distortion, and high-performance networking capabilities for AI and quantum computing applications. The investment supports the development of next-generation dark fiber infrastructure capable of handling increasingly complex hyperscale and high-frequency computing workloads. The initiative also highlights growing industry focus on advanced optical networking technologies for future digital communication systems.
2025–2026 – BIG Fiber expanded AI-focused dark fiber infrastructure
During 2025–2026, BIG Fiber expanded dark fiber connectivity across the San Francisco Bay Area and increased financing support for large-scale network deployment initiatives. The company expanded into CoreSite’s San Jose data center, created a Bay Area dark fiber ring, and increased its green loan facility to $140 million. The expansion is focused on supporting AI, cloud computing, and hyperscale data center workloads requiring high-capacity and low-latency connectivity infrastructure. The development is expected to significantly influence future dark fiber deployments for hyperscale and high-frequency computing environments.
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