Current IANA Address Block Assignments
Address Block Registry Purpose Date
064 - 095/8 IANA Reserved Sep 81
096 - 126/8 IANA Reserved Sep 81
128 - 191/8 Various registries May 93
192 - 193/8 Various registries multi-regional May 93
194 - 195/8 Ripe NCC Europe May 93
196 - 197/8 Internic Others May 93
198 - 199/8 Internic North America May 93
200 - 201/8 Internic Central and South America May 93
202 - 203/8 APNIC Pacific Rim May 93
204 - 205/8 Internic North America Mar 94
206 /8 Internic North America Apr 95
207/8 Internic North America Nov 95
208/8 Internic North America Apr 96
209/8 Internic North America Jun 96
210/8 APNIC Pacific Rim Jun 96
211/8/8 APNIC Pacific Rim Jun 96
212 - 223/8 IANA Reserved Sep 81
224 - 239/8 IANA Multicast (Class D) Sep 81
240 - 255/8 IANA Reserved (Class E) Sep 81