Visualizing Fiber Networks: DC Metro, Northern Virginia, and Baltimore

March 25th, 2013 by · 4 Comments

After touring network maps side by side over in the UK and Scandinavia earlier this month, I decided to evolve the idea further but with US metro network maps.  As it works best for the largest metro markets with recognizable geographies, I thought I’d try looking at the combined Ashburn/DC Metro/Baltimore region – for which I have a dozen.  

24/7 Mid-atlantic DC Metro & Baltimore Map

24/7 Mid-Atlantic

AiNet DC Metro Map




FiberLight DC Metro & Baltimore


Fibertech Maryland Map


Level 3 DC Metro & Baltimore Map

Level 3

Lumos Networks DC Metro Map

Lumos Networks

Sidera DC Metro & Baltimore Map

Sidera Networks

Summit IG Northern Virginia Map

Summit IG

tw telecom DC Metro Map

tw telecom

TRImage254 130429 08.43


Zayo DC Metro & Baltimore


Providers with substantial assets that aren’t featured here include the three giant ILECs (Verizon, AT&T, CenturyLink) plus XO.  I’m not deliberately excluding them, I just don’t have any maps of their assets in the region – yet. However, we do have map images from tw telecom (yay!) and Windstream (via the Intellifiber website, which is still functional).  Lumos only hits Ashburn from the west & north and Summit IG from the south, but each seemed like it ought to be there.  For FiberLight, I had to assemble the snapshot from their Ashburn and Baltimore maps to get an overall view – though they have some downtown in DC not captured by this method.

Zayo consolidated a bunch of the region’s fiber with the AboveNet, FiberGate, and LiteCast acquisitions last year, but clearly there are still quite a few competitive fiber footprints in this region with a lot of depth as well as several independent, unconsolidated assets. They are not entirely independent of course, as operators fill in their footprint via others’ dark fiber.  But it gives a sense of the relative depth in this market each of these providers has overall, as well as places where uniqueness lies.

If you haven't already, please take our Reader Survey! Just 3 questions to help us better understand who is reading Telecom Ramblings so we can serve you better!

Categories: Metro fiber

Join the Discussion!

4 Comments So Far

Leave a Comment

You may Log In to post a comment, or fill in the form to post anonymously.

  • Ramblings’ Jobs

    Post a Job - Just $99/30days
  • Event Calendar