The number of the AS

[Aleksi Suhonen <ams () sci fi>]

Quote From: Tony Bates
Message ID: 199810021900.MAA18952 () lovefm cisco com

} AS Summary
} ----------

} Number of ASes in routing system:                 4081

And the highest assigned AS is close to 12000. Hence the
space is rather sparcely populated.

But, and this is a considerable but, not all of the eight
thousand ASes that are missing from the CIDR report are
unused. There are a lot of ASes out there that are in use,
but don't show up on a global routing table. Most of these
are regional backbone or exchange ASes that don't themselves
terminate any routes. They are only visible to networks
that are connected to them.

And then there's the RBL AS, 7777.

--
        Aleksi Suhonen