NSA MAC address prefix is 00:20:91, you can combine this knowledge with the one ...

emmelaich · on Dec 3, 2017

There's probably a lot more fun ones. Complete list at http://standards-oui.ieee.org/oui.txt. 3.6Mb.

    $ grep 00-20-91 oui.txt 
    00-20-91   (hex)		J125, NATIONAL SECURITY AGENCY
    $ egrep -ic 'army|force|navy|secur|secret|private' oui.txt 
    461

dreamcompiler · on Dec 3, 2017

This threw me for a minute. The NSA is not what I would consider an ethernet vendor. But it's true: https://news.ycombinator.com/item?id=11792320

paulfurley · on Dec 3, 2017

Amazing!!