Did you ever wonder about the communication backbone used by the FAA?
What is the redundancy and security inside of the FAA’s flight information network.
At what level of information exchange does flightaware.com get its data???
Some of those questions are answered by this public FAA document. The full unredacted document
is probably available only through a FOIA request. See below:
FAA Cloud Services DTFACT-13-R-00013
Attachment J-2: User Guide for Government-furnished WAN Services