[Old_Mil]

To the aviation community. It pi$$&$ me off that this stuff is reported to the public; being married to a pilot.

This is hardly a state secret; you can get this information from pretty much any private pilot flight training manual available on Amazon.com. You could probably even google for it.

[kcvl]

You could probably even google for it.

I just did that very thing and you can find out anything you want to know.

[sharktrager]

Took about 10 seconds:

http://www.cakatct.jccbi.gov/Transponder.htm

[ItsForTheChildren]

Took me 3 seconds.

(Took me longer to code the HTML.)

[darthxenu]

I found this link on google that lists 7500 has the hijack code. http://www.faa.gov/atpubs/ATC/Chp10/atc1002.html