For those interested IANA updated the list June 2005
On 7/13/05, Kasper Pedersen <m0n0list dash kkp at kasperkp dot dk> wrote:
> ----- Original Message -----
> From: "Don Munyak" <don dot munyak at gmail dot com>
> # Bogus Network Filtering
> block in log quick on xl0 from 0.0.0.0/7 to any
> block in log quick on xl0 from 126.96.36.199/8 to any
> block in log quick on xl0 from 188.8.131.52/8 to any
> When doing something like this you have to check for updates to address
> assignments regularly since valid hosts and clients will be dropped
> otherwise. I've been on both ends of this, first when blocks 184.108.40.206/8 went
> live, and again when I was assigned nets in 220.127.116.11/8.
> In addition I honestly don't believe it gives you any added security
> whatsoever. Only complexity.