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Old May 10, 2025 | 4:52 pm
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guv1976
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Originally Posted by djp98374
I didn’t look…. DCX or DCB or DCI taken? DCA- national, DCB for Dulles as in A/B

I think the Dulles airport came because it was built for long distance and international flights thus IAD..instead odf DUL
From the IAD Wikipedia entry:

"Dulles originally used DIA – the initials of Dulles International Airport – as its airport code.[84] When handwritten, DIA was often misread as DCA – the code for Washington National Airport. This prompted officials to change Dulles Airport's code to IAD – standing for 'International Airport Dulles.'[84]"
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