All, WRT the below route object, DataBank does announce IP space for Hoechst Celanese Corporation as they are a direct customer of ours:

$ whois -h whois.radb.net 148.163.0.0 route: 148.163.0.0/16 descr: /16 for Celanese origin: AS13767 mnt-by: DBANK-MNT changed: jpope@databank.com 20090818 source: LEVEL3

Currently, we only announce/originate the following prefixes via BGP: 148.163.178.0/24 148.163.179.0/24 via our providers, Level3 and Sprint. We asked our providers to relax their filters for the whole /16, since Celanese owns that IP space. That may or may not be a good idea, depending on your view of network management. We did this in case our customer needed to announce new networks which would save us the time/work of placing more/new route objects in the registry. We have the appropriate LOA for this network which is validated through face-to-face meetings with their network engineers and representatives. DataBank is very sensitive to network abuse; we have an AUP in place with all of our customers and will always work hard to enforce it to prevent network abuse. I apologize that I didn't respond sooner, but I have gotten behind on my NANOG reading. Thank you, Jason Pope DataBank Holdings 214.720.2266 office