We Provide Dark Fiber

If you’re looking for high-speed internet, limitless bandwidth, and want to manage and control your network, then ADN Internet & Telephone’s extensive dark fiber network is the solution for you. Our dark fiber is secure and scalable with virtually unlimited bandwidth.

We offer Dark, in addition to Lit services and provides access to our extensive, high-count, fiber footprint allowing customers unlimited scalability and bandwidth.

As a result of technological advances, Dark Fiber allows you to better manage your business without reliance on your incumbent carrier for additional services while providing you with High-Speed Internet

Our expansive network easily connects the New Hampshire and Boston Metropolitan areas in addition to other major cities and states. Our solutions are delivered to your specifications – leveraging existing fiber with custom builds.

We have an impressive footprint with a small-business mindset. We’re a personal organization that truly values our customers. As technology continues to change, we grow and evolve to continually meet expectations.


  • Industry’s highest quality and most reliable fiber optic cable
  • Maintain 100% plant in-house, 24x7x365 restoration capabilities
  • True diverse routes for unmatched security
  • Unique fiber builds that allow bandwidth at a fixed cost.
  • Optimize the costs and control of your network
dark-fiber, High-Speed Internet

What is Dark Fiber? Dark fiber refers to unused fiber-optic cable. Often times companies lay more lines than what’s needed in order to curb costs of having to do it again and again. The dark strands can be leased to individuals or other companies who want to establish optical connections among their own locations.

We Provide LIT FIBER

We don’t buy all of our bandwidth from a single provider. Instead, we purchase bandwidth from multiple upstream providers in diverse geographic locations.

ADN Internet & Telephone offers Lit Services as well as Dark Solutions. This makes us unique.

Appealing to large carriers as well as enterprise customers, we are a trusted and reliable service provider blending leading-edge technologies with an honest customer delivery and support methodology.

We offer solid, service-level agreements on our own fiber optic network, as well as 24 x 7 x 365 surveillance and support.


  • Scalable custom solutions
  • High-availability, facilities-based network
  • Connections in major data centers and colocation facilities throughout New England
  • High touch customer support and rapid response times


  • High-Speed Internet
  • Ethernet
  • Dedicated Point to Point
LIT Fiber

What Is Lit Fiber? “Lit fiber” refers to fiber-optic cable (used for carrying data between two designated points) that has been installed and activated by carriers (service providers).

We Offer Data Recovery & Business Continuity

Our data recovery experts routinely work on highly complex projects to recover data. Every single data recovery case gets our special attention because we understand them to be the top priority for most organizations.

ADN Internet & Telephone disaster recovery and business continuity services help organizations recover quickly and cost-effectively from any disruption by building resiliency into their communications network design.

Failure to address these trends can result in increased security, regulatory, and operational risks, as well as increased business continuity planning and disaster recovery (BCP/DR) costs.

Disaster can strike at any time. Your organization’s ability to bounce back is vital.

Business Continuity

How Much Does Your Internet Really Cost You?

From unplanned downtime to inefficient workarounds, unreliable Internet has real costs. When you’re ready for reliability, choose ADN.