Optical Network Services

Products & Services

Our Optical Network Services Portfolio provides the highest levels of network performance for backbone connections, inter-data centre connectivity, and high bandwidth requirements.


Optical wave

Fully managed, high quality end-to-end transparent data transmission service operating at speeds of up to 400G.

Private Wave

Private wave

Secure, flexible and high performance private optical networking built on customer-dedicated WDM equipment and fibre infrastructure.



Providing ultra high bandwidth connectivity, Colt Spectrum delivers the flexibility and control of a long haul fibre network, without the overheads of Dark Fibre.

Dark Fibre

Dark Fibre

Colt’s dark fibre network is the most extensive and reliable in Europe. We cover 51 metropolitan areas which are interconnected by our 38,000km network.

With Colt Optical Wavelength ServicePrivate Optical NetworkLong Haul Fibre Optic Network and Dark Fibre Network, Colt provides customers with the scalable, cost-efficient and high-performance solutions for their capacity needs.

Colt’s high bandwidth optical network services portfolio directly address the requirements of enterprises, carrier operators and GCN players requiring connectivity between major sites and data centres. Colt’s IQ Network covers metro, long-haul, and international, including subsea, spanning across Asia, Europe, and North America, with service bandwidths from 1Gbps to 400Gbps.

All of Colt’s optical network services, given their inherent deterministic nature, can be provided on defined network routes and fibre paths with varied options for diversity, service redundancy, and resilience. Get the highest levels of network performance from Colt’s Optical Network Services.


See how businesses are using Colt Optical Network Services
Optical network services case studies →

Colt's optical services are available on a global network
Learn about the Colt IQ Network →

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Optical Network Services