It's not clear to me that HE having reserved AS numbers in THEIR routing table is actually a problem. These AS numbers are actually reserved for private use. Perhaps they have a customer who wants to do BGP but doesn't want to register their own AS number and is single-homed to HE. In this case, HE can assign them a reserved AS number to use for the session and as long as HE strips that AS number when it leaves THEIR network, things are working as intended.

On Wed, Feb 5, 2020, 11:32 PM Ronald F. Guilmette <rfg@tristatelogic.com> wrote:
In message <20200206013024.4B0B213C261D@ary.qy>,
"John Levine" <johnl@iecc.com> wrote:

>1800vitamins.org has a web site at 12.180.219.234 which looks like
>they would sell me vitamins should I or my dog need any.
>
>Routeviews tells me that IP is in AS19111, routed via AS7018.  AS7018
>is AT&T which isn't surprising for a 12/8 address, but ARIN says
>AS19111 doesn't exist.  Huh?

John you have no idea how many folks are using how many bogon ASNs
as we speak.  Nobody does.  Even the guy who is doing weekly routing
table reports isn't listing them all, I think, even after I talked
to him and convinced him to list more things as bogon announcements
than he formerly was listing.  (I think his bogin lists are still not
nearly complete, e.g. if one takes into account bogon ASN announcments.)

Go to bgp.he.net and type in any number from 65000 upwards and look at
all of the effing route announcements!  These are all invalid/reserved
AS numbers which *nobody* should be announcing routes for, at least not
into the global routing table.  And yet the Internet is absolutely awash
in this garbage.

Try to think of a word that is the absolute antonym of "hygiene" and
that's the global routing table.

This stuff would be funny if only it wasn't so sick and pathetic.

Even if we forget about all of the morons who are -using- these invalid
ASNs for actually routing bits to their IPs, you have to ask yourself:
Who are all of the morons who are -peering- with these invalid ASNs?

Regards,
rfg


P.S.  Remember, out of all of the networking engineers in the entire world,
by definition, half of them are of below average intelligence.