This network was constructed from the USA's FAA (Federal Aviation Administration) National Flight Data Center (NFDC), Preferred Routes Database. Nodes in this network represent airports or service centers and links are created from strings of preferred routes recommended by the NFDC.
Data downloaded from http://konect.uni-koblenz.de/ orginaly from http://research.mssm.edu/maayan/datasets/qualitative_networks.shtml
Jerome Kunegis. KONECT - The Koblenz Network Collection. In Proc. Int. Web Observatory Workshop, pages 1343-1350, 2013.
Federal Aviation Administration. Air traffic control system command center. http://www.fly.faa.gov/.