Der Adressraum der IP Version 4 umfasst die IP-Adressen von 0.0.0.0 bis 255.255.255.255. Die Vergabe der Adressen obliegt der IANA. Die IP-Netze werden von der IANA an Firmen oder heute eher an Registrare (Registries) vergeben.
Die folgende Liste gibt einen Überblick über die aktuelle Vergabe der IP-Netze.
Address Block Date Registry - Purpose Notes or Reference ----- ------ --------------------------- ------------------ 000/8 Sep 81 IANA - Reserved 001/8 Sep 81 IANA - Reserved 002/8 Sep 81 IANA - Reserved 003/8 May 94 General Electric Company 004/8 Dec 92 Bolt Beranek and Newman Inc. 005/8 Jul 95 IANA - Reserved 006/8 Feb 94 Army Information Systems Center 007/8 Apr 95 IANA - Reserved 008/8 Dec 92 Bolt Beranek and Newman Inc. 009/8 Aug 92 IBM 010/8 Jun 95 IANA - Private Use See [RFC1918] 011/8 May 93 DoD Intel Information Systems 012/8 Jun 95 AT&T Bell Laboratories 013/8 Sep 91 Xerox Corporation 014/8 Jun 91 IANA - Public Data Network 015/8 Jul 94 Hewlett-Packard Company 016/8 Nov 94 Digital Equipment Corporation 017/8 Jul 92 Apple Computer Inc. 018/8 Jan 94 MIT 019/8 May 95 Ford Motor Company 020/8 Oct 94 Computer Sciences Corporation 021/8 Jul 91 DDN-RVN 022/8 May 93 Defense Information Systems Agency 023/8 Jul 95 IANA - Reserved 024/8 May 01 ARIN - Cable Block (Formerly IANA - Jul 95) 025/8 Jan 95 Royal Signals and Radar Establishment 026/8 May 95 Defense Information Systems Agency 027/8 Apr 95 IANA - Reserved 028/8 Jul 92 DSI-North 029/8 Jul 91 Defense Information Systems Agency 030/8 Jul 91 Defense Information Systems Agency 031/8 Apr 99 IANA - Reserved 032/8 Jun 94 Norsk Informasjonsteknology 033/8 Jan 91 DLA Systems Automation Center 034/8 Mar 93 Halliburton Company 035/8 Apr 94 MERIT Computer Network 036/8 Jul 00 IANA - Reserved (Formerly Stanford University - Apr 93) 037/8 Apr 95 IANA - Reserved 038/8 Sep 94 Performance Systems International 039/8 Apr 95 IANA - Reserved 040/8 Jun 94 Eli Lily and Company 041/8 Apr 05 AfriNIC (whois.afrinic.net) 042/8 Jul 95 IANA - Reserved 043/8 Jan 91 Japan Inet 044/8 Jul 92 Amateur Radio Digital Communications 045/8 Jan 95 Interop Show Network 046/8 Dec 92 Bolt Beranek and Newman Inc. 047/8 Jan 91 Bell-Northern Research 048/8 May 95 Prudential Securities Inc. 049/8 May 94 Joint Technical Command (Returned to IANA Mar 98) 050/8 May 94 Joint Technical Command (Returned to IANA Mar 98) 051/8 Aug 94 Deparment of Social Security of UK 052/8 Dec 91 E.I. duPont de Nemours and Co., Inc. 053/8 Oct 93 Cap Debis CCS 054/8 Mar 92 Merck and Co., Inc. 055/8 Apr 95 Boeing Computer Services 056/8 Jun 94 U.S. Postal Service 057/8 May 95 SITA 058/8 Apr 04 APNIC (whois.apnic.net) 059/8 Apr 04 APNIC (whois.apnic.net) 060/8 Apr 03 APNIC (whois.apnic.net) 061/8 Apr 97 APNIC (whois.apnic.net) 062/8 Apr 97 RIPE NCC (whois.ripe.net) 063/8 Apr 97 ARIN (whois.arin.net) 064/8 Jul 99 ARIN (whois.arin.net) 065/8 Jul 00 ARIN (whois.arin.net) 066/8 Jul 00 ARIN (whois.arin.net) 067/8 May 01 ARIN (whois.arin.net) 068/8 Jun 01 ARIN (whois.arin.net) 069/8 Aug 02 ARIN (whois.arin.net) 070/8 Jan 04 ARIN (whois.arin.net) 071/8 Aug 04 ARIN (whois.arin.net) 072/8 Aug 04 ARIN (whois.arin.net) 073/8 Mar 05 ARIN (whois.arin.net) 074/8 Jun 05 ARIN (whois.arin.net) 075/8 Jun 05 ARIN (whois.arin.net) 076/8 Jun 05 ARIN (whois.arin.net) 077/8 Sep 81 IANA - Reserved 078/8 Sep 81 IANA - Reserved 079/8 Sep 81 IANA - Reserved 080/8 Apr 01 RIPE NCC (whois.ripe.net) 081/8 Apr 01 RIPE NCC (whois.ripe.net) 082/8 Nov 02 RIPE NCC (whois.ripe.net) 083/8 Nov 03 RIPE NCC (whois.ripe.net) 084/8 Nov 03 RIPE NCC (whois.ripe.net) 085/8 Apr 04 RIPE NCC (whois.ripe.net) 086/8 Apr 04 RIPE NCC (whois.ripe.net) 087/8 Apr 04 RIPE NCC (whois.ripe.net) 088/8 Apr 04 RIPE NCC (whois.ripe.net) 089/8 Jun 05 RIPE NCC (whois.ripe.net) 090/8 Jun 05 RIPE NCC (whois.ripe.net) 091/8 Jun 05 RIPE NCC (whois.ripe.net) 092/8 Sep 81 IANA - Reserved 093/8 Sep 81 IANA - Reserved 094/8 Sep 81 IANA - Reserved 095/8 Sep 81 IANA - Reserved 096/8 Sep 81 IANA - Reserved 097/8 Sep 81 IANA - Reserved 098/8 Sep 81 IANA - Reserved 099/8 Sep 81 IANA - Reserved 100/8 Sep 81 IANA - Reserved 101/8 Sep 81 IANA - Reserved 102/8 Sep 81 IANA - Reserved 103/8 Sep 81 IANA - Reserved 104/8 Sep 81 IANA - Reserved 105/8 Sep 81 IANA - Reserved 106/8 Sep 81 IANA - Reserved 107/8 Sep 81 IANA - Reserved 108/8 Sep 81 IANA - Reserved 109/8 Sep 81 IANA - Reserved 110/8 Sep 81 IANA - Reserved 111/8 Sep 81 IANA - Reserved 112/8 Sep 81 IANA - Reserved 113/8 Sep 81 IANA - Reserved 114/8 Sep 81 IANA - Reserved 115/8 Sep 81 IANA - Reserved 116/8 Sep 81 IANA - Reserved 117/8 Sep 81 IANA - Reserved 118/8 Sep 81 IANA - Reserved 119/8 Sep 81 IANA - Reserved 120/8 Sep 81 IANA - Reserved 121/8 Sep 81 IANA - Reserved 122/8 Sep 81 IANA - Reserved 123/8 Sep 81 IANA - Reserved 124/8 Jan 05 APNIC (whois.apnic.net) 125/8 Jan 05 APNIC (whois.apnic.net) 126/8 Jan 05 APNIC (whois.apnic.net) 127/8 Sep 81 IANA - Reserved See [RFC3330] 128/8 May 93 Various Registries 129/8 May 93 Various Registries 130/8 May 93 Various Registries 131/8 May 93 Various Registries 132/8 May 93 Various Registries 133/8 May 93 Various Registries 134/8 May 93 Various Registries 135/8 May 93 Various Registries 136/8 May 93 Various Registries 137/8 May 93 Various Registries 138/8 May 93 Various Registries 139/8 May 93 Various Registries 140/8 May 93 Various Registries 141/8 May 93 Various Registries 142/8 May 93 Various Registries 143/8 May 93 Various Registries 144/8 May 93 Various Registries 145/8 May 93 Various Registries 146/8 May 93 Various Registries 147/8 May 93 Various Registries 148/8 May 93 Various Registries 149/8 May 93 Various Registries 150/8 May 93 Various Registries 151/8 May 93 Various Registries 152/8 May 93 Various Registries 153/8 May 93 Various Registries 154/8 May 93 Various Registries 155/8 May 93 Various Registries 156/8 May 93 Various Registries 157/8 May 93 Various Registries 158/8 May 93 Various Registries 159/8 May 93 Various Registries 160/8 May 93 Various Registries 161/8 May 93 Various Registries 162/8 May 93 Various Registries 163/8 May 93 Various Registries 164/8 May 93 Various Registries 165/8 May 93 Various Registries 166/8 May 93 Various Registries 167/8 May 93 Various Registries 168/8 May 93 Various Registries 169/8 May 93 Various Registries 170/8 May 93 Various Registries 171/8 May 93 Various Registries 172/8 May 93 Various Registries 173/8 Apr 03 IANA - Reserved 174/8 Apr 03 IANA - Reserved 175/8 Apr 03 IANA - Reserved 176/8 Apr 03 IANA - Reserved 177/8 Apr 03 IANA - Reserved 178/8 Apr 03 IANA - Reserved 179/8 Apr 03 IANA - Reserved 180/8 Apr 03 IANA - Reserved 181/8 Apr 03 IANA - Reserved 182/8 Apr 03 IANA - Reserved 183/8 Apr 03 IANA - Reserved 184/8 Apr 03 IANA - Reserved 185/8 Apr 03 IANA - Reserved 186/8 Apr 03 IANA - Reserved 187/8 Apr 03 IANA - Reserved 188/8 May 93 Various Registries 189/8 Jun 05 LACNIC (whois.lacnic.net) 190/8 Jun 05 LACNIC (whois.lacnic.net) 191/8 May 93 Various Registries 192/8 May 93 Various Registries 193/8 May 93 RIPE NCC (whois.ripe.net) 194/8 May 93 RIPE NCC (whois.ripe.net) 195/8 May 93 RIPE NCC (whois.ripe.net) 196/8 May 93 Various Registries 197/8 May 93 IANA - Reserved 198/8 May 93 Various Registries 199/8 May 93 ARIN (whois.arin.net) 200/8 Nov 02 LACNIC (whois.lacnic.net) 201/8 Apr 03 LACNIC (whois.lacnic.net) 202/8 May 93 APNIC (whois.apnic.net) 203/8 May 93 APNIC (whois.apnic.net) 204/8 Mar 94 ARIN (whois.arin.net) 205/8 Mar 94 ARIN (whois.arin.net) 206/8 Apr 95 ARIN (whois.arin.net) 207/8 Nov 95 ARIN (whois.arin.net) 208/8 Apr 96 ARIN (whois.arin.net) 209/8 Jun 96 ARIN (whois.arin.net) 210/8 Jun 96 APNIC (whois.apnic.net) 211/8 Jun 96 APNIC (whois.apnic.net) 212/8 Oct 97 RIPE NCC (whois.ripe.net) 213/8 Mar 99 RIPE NCC (whois.ripe.net) 214/8 Mar 98 US-DOD 215/8 Mar 98 US-DOD 216/8 Apr 98 ARIN (whois.arin.net) 217/8 Jun 00 RIPE NCC (whois.ripe.net) 218/8 Dec 00 APNIC (whois.apnic.net) 219/8 Sep 01 APNIC (whois.apnic.net) 220/8 Dec 01 APNIC (whois.apnic.net) 221/8 Jul 02 APNIC (whois.apnic.net) 222/8 Feb 03 APNIC (whois.apnic.net) 223/8 Apr 03 IANA - Reserved 224/8 Sep 81 IANA - Multicast 225/8 Sep 81 IANA - Multicast 226/8 Sep 81 IANA - Multicast 227/8 Sep 81 IANA - Multicast 228/8 Sep 81 IANA - Multicast 229/8 Sep 81 IANA - Multicast 230/8 Sep 81 IANA - Multicast 231/8 Sep 81 IANA - Multicast 232/8 Sep 81 IANA - Multicast 233/8 Sep 81 IANA - Multicast 234/8 Sep 81 IANA - Multicast 235/8 Sep 81 IANA - Multicast 236/8 Sep 81 IANA - Multicast 237/8 Sep 81 IANA - Multicast 238/8 Sep 81 IANA - Multicast 239/8 Sep 81 IANA - Multicast 240/8 Sep 81 IANA - Reserved 241/8 Sep 81 IANA - Reserved 242/8 Sep 81 IANA - Reserved 243/8 Sep 81 IANA - Reserved 244/8 Sep 81 IANA - Reserved 245/8 Sep 81 IANA - Reserved 246/8 Sep 81 IANA - Reserved 247/8 Sep 81 IANA - Reserved 248/8 Sep 81 IANA - Reserved 249/8 Sep 81 IANA - Reserved 250/8 Sep 81 IANA - Reserved 251/8 Sep 81 IANA - Reserved 252/8 Sep 81 IANA - Reserved 253/8 Sep 81 IANA - Reserved 254/8 Sep 81 IANA - Reserved 255/8 Sep 81 IANA - Reserved
Quelle: IANA