Colt Dark Fibre
Flexible, secure and scalable optical infrastructure for mission-critical networks with unmatched control, privacy and geographic diversity.
Dedicated fibre infrastructure for enterprise and wholesale
Metro and long-haul fibre solutions tailored to business needs. You benefit from route diversity, private infrastructure and monitoring services that proactively detect faults, ensuring reliability and peace of mind.
Offering flexible deployment models across key global locations, with robust SLAs, integrated security and full lifecycle management engineered to support modern workloads.
RELIABLE
BACKED BY SLAs
GLOBAL
metro, international and subsea
FLEXIBLE
deployment options
Trusted by the world's leading companies
Empowering network control.
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Why colt?
We deliver the extraordinary everyday for our customers, people and partners. Here's what sets us apart.
of network expertise
With over two decades of experience designing, building and managing networks, we bring proven reliability, robust engineering standards and continuous innovation.
Enterprise buildings connected globally
Colt's Dark Fibre network enables direct fibre access to business hubs across 32 countries.
Connected data centres
Our Dark Fibre network offers customers unparalleled access to key infrastructure hubs, enabling seamless integration with cloud providers, carrier hotels and enterprise facilities.
FAQs
Dark fibre refers to unlit optical fibre infrastructure that customers light and manage themselves, offering full control and scalability.
Monitoring is available as an optional service using Adtran-ALM equipment for proactive fault detection.
Colt offers unmatched reach, route diversity and monitoring, backed by a wholly-owned network and 24/7 support. We are an award-winning dark fibre provider, offering the most extensive and reliable network in Europe. We cover 51 metropolitan areas which are interconnected by our 38,000 km network. Our partnership with Ciena is future-proofing our network to power next-generation services and digital transformation.
Mobile operators, cloud providers, cable operators and large enterprises, especially in finance, use dark fibre for backbone networks and high-bandwidth connectivity.
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