Address Block Present Use Reference


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0.0.0.0/8 "This" Network [RFC1700, page 4]
10.0.0.0/8 Private-Use Networks [RFC1918]
14.0.0.0/8 Public-Data Networks [RFC1700, page 181]
24.0.0.0/8 Cable Television Networks --
39.0.0.0/8 Reserved but subject
to allocation [RFC1797]
127.0.0.0/8 Loopback [RFC1700, page 5]
128.0.0.0/16 Reserved but subject
to allocation --
169.254.0.0/16 Link Local --
172.16.0.0/12 Private-Use Networks [RFC1918]
191.255.0.0/16 Reserved but subject
to allocation --
192.0.0.0/24 Reserved but subject
to allocation --
192.0.2.0/24 Test-Net
192.88.99.0/24 6to4 Relay Anycast [RFC3068]
192.168.0.0/16 Private-Use Networks [RFC1918]
198.18.0.0/15 Network Interconnect
Device Benchmark Testing [RFC2544]
223.255.255.0/24 Reserved but subject
to allocation --
224.0.0.0/4 Multicast [RFC3171]
240.0.0.0/4 Reserved for Future Use [RFC1700, page 4]
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