Hi Hank,

Following up with Cisco POC, I got this response.

"We are in the process of retrieving this /20 back. An ARIN ticket was opened for this."

I checked the ARIN allocation file until 1st March so it's been more than 4 months since ARIN marked this prefix "reserved".

ftp://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20180301

On Sun, 15 Jul 2018 at 20:08 Aftab Siddiqui <aftab.siddiqui@gmail.com> wrote:

Hi Hank,

On Sun, 15 Jul 2018 at 04:32 Hank Nussbacher via db-wg <db-wg@ripe.net> wrote:
On 13/07/2018 18:40, Sandra Murphy via db-wg wrote:

While we are on the topic, anyone have an idea about Cisco and
66.187.208.0/20?

Same issue, just because there is a bad entry in the RADB many transits are accepting it, well there is Hurricane Electric in the middle as well who doesn't filter anything though.

route: 66.187.208.0/20
descr: CISCO SYSTEMS, INC 170 WEST TASMAN DRIVE SAN JOSE, CA 95134 US RP-ALLN
origin: AS109
mnt-by: MAINT-AS109
source: RADB-GRS