Scroll to Main content, Navigation
Note: Read why this site appears to be in plain text.
Unbundled Dark Fiber Loop and Transport (UDF) from Sprint is fiber optic cable currently in the Sprint network that is not connected to the electronic equipment that "lights" it. Available only in select areas, UDF can provide an exceptionally timely response to an immediate market need. To find out if UDF is available for your needs, contact your Sprint Representative for a Dark Fiber Application (DFA) form.
Sprint has years of experience providing solutions for telecommunications. The Sprint fiber network is one of the largest available of any local service provider, providing stability and reliability.
With UDF from Sprint, you may:
Immediate Availability - means you can utilize the existing fiber optic network and save the added expense of installing new fiber. Plus, this offers more alternatives, whether you are selling to end users or building your own local area network (LAN).
Quick provisioning - saves you the time of designing and installing new fiber, reducing immediate investment and increasing potential revenue. UDF is available fiber between two points on a spare route requested by you. This means it is not included in internal reserve and not planned to be used within the current or next budget cycle.
A fiber patch panel must be present before provisioning. You will be notified within 10 days if UDF is not available. Collocation, if needed, will follow the normal collocation provisioning timelines.
UDF can be provided from:
Sprint can also provide fiber cable from a Sprint access point to CLEC facilities, at an additional charge determined on an individual case basis (ICB). Splicing charges if any, would also apply. See your local Sprint Representative to submit an ICB request.
Here is how it works:


