> This is not what the Team Cymru Bogons list for? > http://www.team-cymru.org/Services/Bogons/ I just had a very quick look at that site and it seems at first glance to just be providing information on unallocated prefixes/ASs.. They are prefixes/ASs that spammers can and do use, but if you have a look at cidr report or potaroo then you will see that an ISP who filters based on that will cause some issues (allocation records are not always up to date).
> List bad ASNs after proper investigation? Not really, just based on registry information as far as I can see. For instance, if a known and stable AS suddenly started originating spam, it doesnt look like that would appear on the site. > It then depends if you trust Team Cymru or not, like you would trust or not > Spamhaus... Trust will always be the issue. Peer review and communication is one way of building trust.
