The global dark fiber network market size is expected to reach USD 13.45 billion by 2030, registering a CAGR of 14.3% from 2025 to 2030, according to a new report by Grand View Research, Inc. Dark fiber has emerged as a sustainable solution for various organizations that are focusing on enhanced communication and network management. Continuously increasing penetration of internet services over the period has paved the way for the high demand for internet bandwidth. This demand is expected to remain rampant over the forecast period. This is the most significant factor responsible for market growth across the globe. The market is strongly supported by companies with a high reliance on internet connectivity. These networks are highly beneficial for organizations with a high volume of data flow in their operation. These benefits include reduced network latency, scalability, reliability, and enhanced security.
In fiber-optic communications, fiber optic cables that are not yet put in service by a provider or carrier, are termed dark fiber or unlit fiber. Network communications and telecom usually use the network, and currently, there are lots of dark fiber cables across the globe. In regular fiber networks, information is sent through the cables in light pulses. Whereas dark fiber networks are known to be ‘dark’ as no light or data is transmitted from them.
Dark fiber networks can be installed and set up using point-to-multipoint or point-to-point configurations. Dense Wavelength Division Multiplexing (DWDM) is an essential factor for the improvement and development of dark fiber networks. DWDM occurs when many data signals are transmitted using the same optical fiber at the same time. Although these signals are transmitted around the same time, they are transmitted at separate and unique wavelengths to keep these data signals separate. The significant benefits of DWDM include an increase in bandwidth of the optical fiber, high-quality internet performance, lightning-fast internet, and a secure and powerful network.
Dark fiber networks are not just used for business purposes but can be installed beneath land and oceans. Some of the interesting use cases of dark fiber include earthquake research and monitoring permafrost. Amongst many advantages, some of the disadvantages of the dark fiber network include high initial cost and loss of time in setting up your infrastructure, and high repairing and maintenance costs. Similarly, large dark fiber networks are currently available in metropolitan cities only and are yet to become available in small cities and towns.
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The multi-mode segment dominated the dark fiber network industry in 2024 and accounted for 63.2% share of the global revenue. It is also expected to continue leading the market over the forecast period.
The glass segment led the market in 2024. Its leadership can be attributed to its superior optical properties, durability, and widespread adoption across various industries.
The long-haul segment is anticipated to register the fastest growth rate over the forecast. The segment continues to gather pace due to its capacity to connect over large distances at low signal intensity.
In terms of revenue, the telecom segment dominated the dark fiber network market in 2024 and is anticipated to retain its dominance in terms of market size by 2030.
Asia Pacific dark fiber network market dominated with a share of 28.8% in 2024. Asia Pacific is spearheading revenue growth owing to technological advancements and large-scale adoption of the technology in the IT telecommunication and administrative sector.
Grand View Research has segmented the dark fiber network market on the basis of on fiber type, network type, material, application, and region:
Dark Fiber Network Fiber Type Outlook (Revenue, USD Million, 2018 - 2030)
Single Mode
Multi-mode
Step-index Multimode Fiber
Graded-index Multimode Fiber
Dark Fiber Network Network Type Outlook (Revenue, USD Million, 2018 - 2030)
Metro
Long-haul
Dark Fiber Network Material Outlook (Revenue, USD Million, 2018 - 2030)
Glass
Plastic
Dark Fiber Network Application Outlook (Revenue, USD Million, 2018 - 2030)
Telecom
Oil & Gas
Military & Aerospace
BFSI
Medical
Railway
Others
Dark Fiber Network Regional Outlook (Revenue, USD Million, 2018 - 2030)
North America
U.S.
Canada
Mexico
Europe
UK
Germany
France
Asia Pacific
China
India
Japan
South Korea
Australia
South America
Brazil
Middle East & Africa (MEA)
KSA
UAE
South Africa
List of Key Players in the Dark Fiber Network Market
AT&T Inc.
Colt Technology Services Group Limited
Comcast Corporation
Consolidated Communications
GTT Communications, Inc.
Lumen Technologies, Inc.
Verizon Communications, Inc.
Windstream Intellectual Property Services, LLC
Zayo Group, LLC
Microscan
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