22/8 is actively used by DoD, just not publicly. It would be in your best interest to not accept routes for it.

if you need something more official, contact the DoD NIC directly at the email address specified in WHOIS.

On Mon, Nov 4, 2019 at 3:32 AM Stephane Bortzmeyer <bortzmeyer@nic.fr> wrote:
On Mon, Nov 04, 2019 at 10:55:47AM +0200,
 Chris Knipe <savage@savage.za.org> wrote
 a message of 35 lines which said:

> We are experiencing a situation with a 3rd party (direct peer),
> wanting to advertise DoD address space to us, and we need to confirm
> whether they are allowed to do so or not.

The US military lacks money and sold parts of 22/8, like the radio
amateurs? :-) Apparently, no part of it ever appeared on the Internet.


--
Jason