Bogon Networks: Reserved, Private, Loopback, Auto-Configuration & Multicast Network Ranges

Prevent bogons from accessing your network or website.

Bogon networks: We are proud to announce new updated CIDR and Netmask Bogon Lists. Our new Bogon database contains information on Reserved and Special Use Network space. This data includes Reserved Networks typically considered Bogons, plus Private Networks, Loopbacks, Auto-configuration ranges and Multicast network space. Bogon addresses are network ranges reserved but unallocated and usually have no business entering your network from outside your network boundaries.

Bogon filtering

0.0.0.0 - 1.255.255.255

0.0.0.0/7

0.0.0.0/254.0.0.0

33,554,432

2.0.0.0 - 2.255.255.255

2.0.0.0/8

2.0.0.0/255.0.0.0

16,777,216

5.0.0.0 - 5.255.255.255

5.0.0.0/8

5.0.0.0/255.0.0.0

16,777,216

10.0.0.0 - 10.255.255.255

10.0.0.0/8

10.0.0.0/255.0.0.0

16,777,216

14.0.0.0 - 14.255.255.255

14.0.0.0/8

14.0.0.0/255.0.0.0

16,777,216

23.0.0.0 - 23.255.255.255

23.0.0.0/8

23.0.0.0/255.0.0.0

16,777,216

27.0.0.0 - 27.255.255.255

27.0.0.0/8

27.0.0.0/255.0.0.0

16,777,216

31.0.0.0 - 31.255.255.255

31.0.0.0/8

31.0.0.0/255.0.0.0

16,777,216

36.0.0.0 - 37.255.255.255

36.0.0.0/7

36.0.0.0/254.0.0.0

33,554,432

39.0.0.0 - 39.255.255.255

39.0.0.0/8

39.0.0.0/255.0.0.0

16,777,216

42.0.0.0 - 42.255.255.255

42.0.0.0/8

42.0.0.0/255.0.0.0

16,777,216

46.0.0.0 - 46.255.255.255

46.0.0.0/8

46.0.0.0/255.0.0.0

16,777,216

49.0.0.0 - 49.255.255.255

49.0.0.0/8

49.0.0.0/255.0.0.0

16,777,216

50.0.0.0 - 50.255.255.255

50.0.0.0/8

50.0.0.0/255.0.0.0

16,777,216

100.0.0.0 - 103.255.255.255

100.0.0.0/6

100.0.0.0/252.0.0.0

67,108,864

104.0.0.0 - 111.255.255.255

104.0.0.0/5

104.0.0.0/248.0.0.0

134,217,728

112.0.0.0 - 113.255.255.255

112.0.0.0/7

112.0.0.0/254.0.0.0

33,554,432

127.0.0.0 - 127.255.255.255

127.0.0.0/8

127.0.0.0/255.0.0.0

16,777,216

169.254.0.0 - 169.254.255.255

169.254.0.0/16

169.254.0.0/255.255.0.0

65,536

172.16.0.0 - 172.31.255.255

172.16.0.0/12

172.16.0.0/255.240.0.0

1,048,576

175.0.0.0 - 175.255.255.255

175.0.0.0/8

175.0.0.0/255.0.0.0

16,777,216

176.0.0.0 - 183.255.255.255

176.0.0.0/5

176.0.0.0/248.0.0.0

134,217,728

184.0.0.0 - 185.255.255.255

184.0.0.0/7

184.0.0.0/254.0.0.0

33,554,432

192.0.2.0 - 192.0.2.255

192.0.2.0/24

192.0.2.0/255.255.255.0

256

192.168.0.0 - 192.168.255.255

192.168.0.0/16

192.168.0.0/255.255.0.0

65,536

197.0.0.0 - 197.255.255.255

197.0.0.0/8

197.0.0.0/255.0.0.0

16,777,216

198.18.0.0 - 198.19.255.255

198.18.0.0/15

198.18.0.0/255.254.0.0

131,072

223.0.0.0 - 223.255.255.255

223.0.0.0/8

223.0.0.0/255.0.0.0

16,777,216

224.0.0.0 - 255.255.255.255

224.0.0.0/3

224.0.0.0/224.0.0.0

536,870,912