Bogon Dotted Decimal List
Be sure to check out the main Bogon Reference for more information on the project and terminology used, and why it is important to keep your bogon filters up-to-date.
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​With regards to filtering 100.64.0.0/10, please consult RFC6598. Know your network, test your filters!
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[ Dotted Decimal Non-aggregated ] [ Dotted Decimal Aggregated ] [ Cisco ACL Non-aggregated ] [ Cisco ACL Aggregated ]
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CURRENT AS OF: AUGUST 2018
Dotted Decimal Non-Aggregated
0.0.0.0 255.0.0.0
10.0.0.0 255.0.0.0
100.64.0.0 255.192.0.0
127.0.0.0 255.0.0.0
169.254.0.0 255.255.0.0
172.16.0.0 255.240.0.0
192.0.0.0 255.255.255.0
192.0.2.0 255.255.255.0
192.168.0.0 255.255.0.0
198.18.0.0 255.254.0.0
198.51.100.0 255.255.255.0
203.0.113.0 255.255.255.0
224.0.0.0 240.0.0.0
240.0.0.0 240.0.0.0
Dotted Decimal Aggregated
The following aggregations follow proper boundaries and are suitable for use in black hole routes. If proper boundaries are not followed it is possible to further aggregate, though this likely won’t work on most gear.
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0.0.0.0 255.0.0.0
10.0.0.0 255.0.0.0
100.64.0.0 255.192.0.0
127.0.0.0 255.0.0.0
169.254.0.0 255.255.0.0
172.16.0.0 255.240.0.0
192.0.0.0 255.255.255.0
192.0.2.0 255.255.255.0
192.168.0.0 255.255.0.0
198.18.0.0 255.254.0.0
198.51.100.0 255.255.255.0
203.0.113.0 255.255.255.0
224.0.0.0 224.0.0.0
Cisco ACL Non-Aggregated
0.0.0.0 0.255.255.255
10.0.0.0 0.255.255.255
100.64.0.0 0.63.255.255
127.0.0.0 0.255.255.255
169.254.0.0 0.0.255.255
172.16.0.0 0.15.255.255
192.0.0.0 0.0.0.255
192.0.2.0 0.0.0.255
192.168.0.0 0.0.255.255
198.18.0.0 0.1.255.255
198.51.100.0 0.0.0.255
203.0.113.0 0.0.0.255
224.0.0.0 15.255.255.255
240.0.0.0 15.255.255.255
​Cisco ACL Aggregated
The following aggregations work with Cisco ACLs, and are aligned on proper boundaries.
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0.0.0.0 0.255.255.255
10.0.0.0 0.255.255.255
100.64.0.0 0.63.255.255
127.0.0.0 0.255.255.255
169.254.0.0 0.0.255.255
172.16.0.0 0.15.255.255
192.0.0.0 0.0.0.255
192.0.2.0 0.0.0.255
192.168.0.0 0.0.255.255
198.18.0.0 0.1.255.255
198.51.100.0 0.0.0.255
203.0.113.0 0.0.0.255
224.0.0.0 31.255.255.255