Has been updated to include the known NACs for the Airports on UHF https://wiki.radioreference.com/index.php/Transportation_Security_Administra tion#Known_UHF_NAC_Allocations Any new or updates appreciated to build out a complete list Bill - N1KUG Boston, Mass Cruise Ship Frequencies <http://scanmaritime.com/> http://scanmaritime.com/