[Bluecobra]

I once worked at a place that used 100.0.0.0/8. At the time that range was not in use on the Internet. Not sure if that was intentional or a fat finger. That place was ran by idiots though, so it was probably the latter.

[gfv]

Do you mean 100/8 other than the 100.64.0.0/10 RFC6598 CGNAT range?