Dark Fiber Network Market Projected to Reach USD 25.55 Billion by 2034 on Data Center, Cloud and AI Connectivity Needs The global Dark Fiber Network Market was valued at USD 6.81 billion in 2025, according to Polaris Market Research. It is estimated at USD 7.88 billion in 2026 and is projected to reach USD 25.55 billion by 2034, a 15.8% CAGR over the 2026-2034 forecast period. Dark fiber is...