Nationwide Fiber-Optic Network

A high-capacity fiber optic network and scalable data services, for efficient delivery of Ethernet, Internet, and phone solutions.

Built on Comcast fiber

We host a robust network that forms the basis of our fiber optic Internet services and other Internet-based services for small, mid-market, and enterprise level businesses. Learn more about how we use fiber optic cables to deliver reliable, high-speed services to your business.

Man checking server diagnostics

Designed for optimal business performance

Our vast and growing footprint spans 29 regional networks in 39 states and includes:

  • An enhanced fiber optic network, with more than 145,000 miles of fiber, that provides high- speed, high quality, and high-definition services to a number of large companies
  • A support structure made up of thousands of professionals with the knowledge and experience to handle any situation
  • MEF-certified carrier class Ethernet that delivers standardized, scalable, and reliable Metro Ethernet solutions – at a service and hardware level
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Comcast Metro Ethernet availability

Comcast currently provides Metro Ethernet services in the following markets. Additional markets will be launched on an ongoing basis.

  • Atlanta
  • Baltimore
  • Boston
  • Chicago
  • Denver
  • Detroit
  • Harrisburg, PA
  • Hartford
  • Houston

  • Indianapolis
  • Jacksonville
  • Miami
  • Minneapolis/St. Paul
  • Nashville
  • New Jersey
  • Oakland
  • Philadelphia
  • Pittsburgh

  • Portland
  • Sacramento
  • Salt Lake City
  • San Francisco
  • San Jose
  • Seattle
  • Washington D.C.
  • Western New England

Our extensive nationwide fiber optic network

It’s the largest facilities-based, last-mile alternative to the phone company in the U.S.

U.S. map with pins in major cities across the U.S. and connecting lines

Comcast Business Fiber Optic Network

Our high-speed, high-capacity fiber optic internet operates across our vast and constantly growing hybrid fiber-coax network, with more than 145,000 miles of fiber. We currently serve 18 of the top markets, delivering a multi-tier broadband service with scalable solutions to fit your business.