Gary Warner published a list of 18,034 domains hosted on IP addresses in netspace belonging to intercage. http://www.cis.uab.edu/forensics/18000.intercage.domains.readme.txthttp://www.cis.uab.edu/forensics/18000.intercage.domains.txt
Since that time intercage has gone offline. So there is a question of what has happened to these domains. Have the owners simply left them behind and registered new domains? I think not...
timed-out x6,607 / Timed out x11 / Server failed x1,459
These are domains which probably have nameservers that are offline.
Non-existent domain x1,309
Domains that no longer exist (NX) or exist but have the following status or similar, which stops the owner being able to do certain things with the domain to use it.
No address (A) records available x306
Domains that have no nameservers or nameservers that do not have IP addresses on record for them.
This adds up to 9,692 domains, Just over 50% of the original list. There are 8,357 domains resolving to IP addresses (some domains have multiple A records). A lot of these may be domain parking pages, such as the first result which will show sedoparking.com/ztomy.com etc... because the domains name servers are using dnsbakler.com
The IPs below may have more Domains hosted on them, but these are just domains from the 18,000 in Gary Warners list.