Network Advisory Services represents a variety of fiber network assets for sale and lease across the United States. Browse our network listings to locate available dark fiber, inner-duct and conduit by asset type, location and criteria.
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Duct System | Ohio - Pennsylvania

Duct System | Ohio - Pennsylvania

For Sale 150 Mile Route From the NY/PA Border to Cleveland, OH
Dark Fiber & Duct | Northern Illinois

Dark Fiber & Duct | Northern Illinois

Urban and Suburban Dark Fiber and Duct in the Chicago Area
Long-Haul Dark Fiber Routes | Nationwide

Long-Haul Dark Fiber Routes | Nationwide

Long-Haul Dark Fiber Routes Spanning Coast-to-Coast
West and Pacific Northwest Fiber |  OR, UT, ID, WA & WY

West and Pacific Northwest Fiber | OR, UT, ID, WA & WY

Multiple Fiber Routes in Key Metro Areas in the West and Pacific Northwest
Dark Fiber Route | Nebraska - Colorado

Dark Fiber Route | Nebraska - Colorado

Newly Constructed Dark Fiber Route Connecting Omaha, NE to Brighton, CO
Dark Fiber Route | Toronto, ON – Buffalo, NY

Dark Fiber Route | Toronto, ON – Buffalo, NY

Low Latency, Physically Diverse International Route
Dark Fiber | Atlanta to Jacksonville

Dark Fiber | Atlanta to Jacksonville

Six Florida- and Georgia-Based Fiber Opportunities
Dark Fiber | Ashburn, VA – Atlanta, GA

Dark Fiber | Ashburn, VA – Atlanta, GA

Diverse Fiber Route Connecting Ashburn, VA to Atlanta
Fiber & Duct Conduit Systems | Austin, TX

Fiber & Duct Conduit Systems | Austin, TX

2x1½ Inch Inner Ducts Now Available
Long-haul Route | Cleveland to New York City

Long-haul Route | Cleveland to New York City

OH/PA/NY Fiber Available For Purchase or Long-Term Lease
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