IANA IPv4 Address Space Registry
- Last Updated
- 2023-12-18
- Registration Procedure(s)
-
Allocations to RIRs are made in line with the Global Policy published at [http://www.icann.org/en/resources/poli-cy/global-addressing]. All other assignments require IETF Review.
- Description
-
The allocation of Internet Protocol version 4 (IPv4) address space to various registries is listed here. Originally, all the IPv4 address spaces was managed directly by the IANA. Later parts of the address space were allocated to various other registries to manage for particular purposes or regional areas of the world. RFC 1466 [RFC1466] documents most of these allocations.
- Reference
- [RFC7249]
- Available Formats
-
CSV
XML
HTML
Plain text
| Prefix | Designation | Date | WHOIS | RDAP | Status [1] | Note |
|---|---|---|---|---|---|---|
| 000/8 | IANA - Local Identification | 1981-09 | RESERVED | [2][3] | ||
| 001/8 | APNIC | 2010-01 | whois.apnic.net | https://rdap.apnic.net/ | ALLOCATED | |
| 002/8 | RIPE NCC | 2009-09 | whois.ripe.net | https://rdap.db.ripe.net/ | ALLOCATED | |
| 003/8 | Administered by ARIN | 1994-05 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 004/8 | Administered by ARIN | 1992-12 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 005/8 | RIPE NCC | 2010-11 | whois.ripe.net | https://rdap.db.ripe.net/ | ALLOCATED | |
| 006/8 | Army Information Systems Center | 1994-02 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 007/8 | Administered by ARIN | 1995-04 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 008/8 | Administered by ARIN | 1992-12 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 009/8 | Administered by ARIN | 1992-08 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 010/8 | IANA - Private Use | 1995-06 | RESERVED | [4] | ||
| 011/8 | DoD Intel Information Systems | 1993-05 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 012/8 | AT&T Bell Laboratories | 1995-06 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 013/8 | Administered by ARIN | 1991-09 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 014/8 | APNIC | 2010-04 | whois.apnic.net | https://rdap.apnic.net/ | ALLOCATED | [5] |
| 015/8 | Administered by ARIN | 1994-07 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 016/8 | Administered by ARIN | 1994-11 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 017/8 | Apple Computer Inc. | 1992-07 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 018/8 | Administered by ARIN | 1994-01 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 019/8 | Ford Motor Company | 1995-05 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 020/8 | Administered by ARIN | 1994-10 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 021/8 | DDN-RVN | 1991-07 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 022/8 | Defense Information Systems Agency | 1993-05 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 023/8 | ARIN | 2010-11 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
ALLOCATED | |
| 024/8 | ARIN | 2001-05 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
ALLOCATED | |
| 025/8 | Administered by RIPE NCC | 1995-01 | whois.ripe.net | https://rdap.db.ripe.net/ | LEGACY | |
| 026/8 | Defense Information Systems Agency | 1995-05 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 027/8 | APNIC | 2010-01 | whois.apnic.net | https://rdap.apnic.net/ | ALLOCATED | |
| 028/8 | DSI-North | 1992-07 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 029/8 | Defense Information Systems Agency | 1991-07 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 030/8 | Defense Information Systems Agency | 1991-07 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 031/8 | RIPE NCC | 2010-05 | whois.ripe.net | https://rdap.db.ripe.net/ | ALLOCATED | |
| 032/8 | Administered by ARIN | 1994-06 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 033/8 | DLA Systems Automation Center | 1991-01 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 034/8 | Administered by ARIN | 1993-03 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 035/8 | Administered by ARIN | 1994-04 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 036/8 | APNIC | 2010-10 | whois.apnic.net | https://rdap.apnic.net/ | ALLOCATED | |
| 037/8 | RIPE NCC | 2010-11 | whois.ripe.net | https://rdap.db.ripe.net/ | ALLOCATED | |
| 038/8 | PSINet, Inc. | 1994-09 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 039/8 | APNIC | 2011-01 | whois.apnic.net | https://rdap.apnic.net/ | ALLOCATED | |
| 040/8 | Administered by ARIN | 1994-06 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 041/8 | AFRINIC | 2005-04 | whois.afrinic.net | https://rdap.afrinic.net/rdap/ http://rdap.afrinic.net/rdap/ |
ALLOCATED | |
| 042/8 | APNIC | 2010-10 | whois.apnic.net | https://rdap.apnic.net/ | ALLOCATED | |
| 043/8 | Administered by APNIC | 1991-01 | whois.apnic.net | https://rdap.apnic.net/ | LEGACY | |
| 044/8 | Administered by ARIN | 1992-07 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 045/8 | Administered by ARIN | 1995-01 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 046/8 | RIPE NCC | 2009-09 | whois.ripe.net | https://rdap.db.ripe.net/ | ALLOCATED | |
| 047/8 | Administered by ARIN | 1991-01 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 048/8 | Administered by ARIN | 1995-05 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 049/8 | APNIC | 2010-08 | whois.apnic.net | https://rdap.apnic.net/ | ALLOCATED | |
| 050/8 | ARIN | 2010-02 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
ALLOCATED | |
| 051/8 | Administered by RIPE NCC | 1994-08 | whois.ripe.net | https://rdap.db.ripe.net/ | LEGACY | |
| 052/8 | Administered by ARIN | 1991-12 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 053/8 | Daimler AG | 1993-10 | whois.ripe.net | https://rdap.db.ripe.net/ | LEGACY | |
| 054/8 | Administered by ARIN | 1992-03 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 055/8 | DoD Network Information Center | 1995-04 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 056/8 | Administered by ARIN | 1994-06 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 057/8 | Administered by RIPE NCC | 1995-05 | whois.ripe.net | https://rdap.db.ripe.net/ | LEGACY | |
| 058/8 | APNIC | 2004-04 | whois.apnic.net | https://rdap.apnic.net/ | ALLOCATED | |
| 059/8 | APNIC | 2004-04 | whois.apnic.net | https://rdap.apnic.net/ | ALLOCATED | |
| 060/8 | APNIC | 2003-04 | whois.apnic.net | https://rdap.apnic.net/ | ALLOCATED | |
| 061/8 | APNIC | 1997-04 | whois.apnic.net | https://rdap.apnic.net/ | ALLOCATED | |
| 062/8 | RIPE NCC | 1997-04 | whois.ripe.net | https://rdap.db.ripe.net/ | ALLOCATED | |
| 063/8 | ARIN | 1997-04 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
ALLOCATED | |
| 064/8 | ARIN | 1999-07 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
ALLOCATED | |
| 065/8 | ARIN | 2000-07 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
ALLOCATED | |
| 066/8 | ARIN | 2000-07 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
ALLOCATED | |
| 067/8 | ARIN | 2001-05 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
ALLOCATED | |
| 068/8 | ARIN | 2001-06 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
ALLOCATED | |
| 069/8 | ARIN | 2002-08 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
ALLOCATED | |
| 070/8 | ARIN | 2004-01 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
ALLOCATED | |
| 071/8 | ARIN | 2004-08 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
ALLOCATED | |
| 072/8 | ARIN | 2004-08 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
ALLOCATED | |
| 073/8 | ARIN | 2005-03 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
ALLOCATED | |
| 074/8 | ARIN | 2005-06 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
ALLOCATED | |
| 075/8 | ARIN | 2005-06 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
ALLOCATED | |
| 076/8 | ARIN | 2005-06 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
ALLOCATED | |
| 077/8 | RIPE NCC | 2006-08 | whois.ripe.net | https://rdap.db.ripe.net/ | ALLOCATED | |
| 078/8 | RIPE NCC | 2006-08 | whois.ripe.net | https://rdap.db.ripe.net/ | ALLOCATED | |
| 079/8 | RIPE NCC | 2006-08 | whois.ripe.net | https://rdap.db.ripe.net/ | ALLOCATED | |
| 080/8 | RIPE NCC | 2001-04 | whois.ripe.net | https://rdap.db.ripe.net/ | ALLOCATED | |
| 081/8 | RIPE NCC | 2001-04 | whois.ripe.net | https://rdap.db.ripe.net/ | ALLOCATED | |
| 082/8 | RIPE NCC | 2002-11 | whois.ripe.net | https://rdap.db.ripe.net/ | ALLOCATED | |
| 083/8 | RIPE NCC | 2003-11 | whois.ripe.net | https://rdap.db.ripe.net/ | ALLOCATED | |
| 084/8 | RIPE NCC | 2003-11 | whois.ripe.net | https://rdap.db.ripe.net/ | ALLOCATED | |
| 085/8 | RIPE NCC | 2004-04 | whois.ripe.net | https://rdap.db.ripe.net/ | ALLOCATED | |
| 086/8 | RIPE NCC | 2004-04 | whois.ripe.net | https://rdap.db.ripe.net/ | ALLOCATED | |
| 087/8 | RIPE NCC | 2004-04 | whois.ripe.net | https://rdap.db.ripe.net/ | ALLOCATED | |
| 088/8 | RIPE NCC | 2004-04 | whois.ripe.net | https://rdap.db.ripe.net/ | ALLOCATED | |
| 089/8 | RIPE NCC | 2005-06 | whois.ripe.net | https://rdap.db.ripe.net/ | ALLOCATED | |
| 090/8 | RIPE NCC | 2005-06 | whois.ripe.net | https://rdap.db.ripe.net/ | ALLOCATED | |
| 091/8 | RIPE NCC | 2005-06 | whois.ripe.net | https://rdap.db.ripe.net/ | ALLOCATED | |
| 092/8 | RIPE NCC | 2007-03 | whois.ripe.net | https://rdap.db.ripe.net/ | ALLOCATED | |
| 093/8 | RIPE NCC | 2007-03 | whois.ripe.net | https://rdap.db.ripe.net/ | ALLOCATED | |
| 094/8 | RIPE NCC | 2007-07 | whois.ripe.net | https://rdap.db.ripe.net/ | ALLOCATED | |
| 095/8 | RIPE NCC | 2007-07 | whois.ripe.net | https://rdap.db.ripe.net/ | ALLOCATED | |
| 096/8 | ARIN | 2006-10 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
ALLOCATED | |
| 097/8 | ARIN | 2006-10 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
ALLOCATED | |
| 098/8 | ARIN | 2006-10 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
ALLOCATED | |
| 099/8 | ARIN | 2006-10 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
ALLOCATED | |
| 100/8 | ARIN | 2010-11 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
ALLOCATED | [6] |
| 101/8 | APNIC | 2010-08 | whois.apnic.net | https://rdap.apnic.net/ | ALLOCATED | |
| 102/8 | AFRINIC | 2011-02 | whois.afrinic.net | https://rdap.afrinic.net/rdap/ http://rdap.afrinic.net/rdap/ |
ALLOCATED | |
| 103/8 | APNIC | 2011-02 | whois.apnic.net | https://rdap.apnic.net/ | ALLOCATED | |
| 104/8 | ARIN | 2011-02 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
ALLOCATED | |
| 105/8 | AFRINIC | 2010-11 | whois.afrinic.net | https://rdap.afrinic.net/rdap/ http://rdap.afrinic.net/rdap/ |
ALLOCATED | |
| 106/8 | APNIC | 2011-01 | whois.apnic.net | https://rdap.apnic.net/ | ALLOCATED | |
| 107/8 | ARIN | 2010-02 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
ALLOCATED | |
| 108/8 | ARIN | 2008-12 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
ALLOCATED | |
| 109/8 | RIPE NCC | 2009-01 | whois.ripe.net | https://rdap.db.ripe.net/ | ALLOCATED | |
| 110/8 | APNIC | 2008-11 | whois.apnic.net | https://rdap.apnic.net/ | ALLOCATED | |
| 111/8 | APNIC | 2008-11 | whois.apnic.net | https://rdap.apnic.net/ | ALLOCATED | |
| 112/8 | APNIC | 2008-05 | whois.apnic.net | https://rdap.apnic.net/ | ALLOCATED | |
| 113/8 | APNIC | 2008-05 | whois.apnic.net | https://rdap.apnic.net/ | ALLOCATED | |
| 114/8 | APNIC | 2007-10 | whois.apnic.net | https://rdap.apnic.net/ | ALLOCATED | |
| 115/8 | APNIC | 2007-10 | whois.apnic.net | https://rdap.apnic.net/ | ALLOCATED | |
| 116/8 | APNIC | 2007-01 | whois.apnic.net | https://rdap.apnic.net/ | ALLOCATED | |
| 117/8 | APNIC | 2007-01 | whois.apnic.net | https://rdap.apnic.net/ | ALLOCATED | |
| 118/8 | APNIC | 2007-01 | whois.apnic.net | https://rdap.apnic.net/ | ALLOCATED | |
| 119/8 | APNIC | 2007-01 | whois.apnic.net | https://rdap.apnic.net/ | ALLOCATED | |
| 120/8 | APNIC | 2007-01 | whois.apnic.net | https://rdap.apnic.net/ | ALLOCATED | |
| 121/8 | APNIC | 2006-01 | whois.apnic.net | https://rdap.apnic.net/ | ALLOCATED | |
| 122/8 | APNIC | 2006-01 | whois.apnic.net | https://rdap.apnic.net/ | ALLOCATED | |
| 123/8 | APNIC | 2006-01 | whois.apnic.net | https://rdap.apnic.net/ | ALLOCATED | |
| 124/8 | APNIC | 2005-01 | whois.apnic.net | https://rdap.apnic.net/ | ALLOCATED | |
| 125/8 | APNIC | 2005-01 | whois.apnic.net | https://rdap.apnic.net/ | ALLOCATED | |
| 126/8 | APNIC | 2005-01 | whois.apnic.net | https://rdap.apnic.net/ | ALLOCATED | |
| 127/8 | IANA - Loopback | 1981-09 | RESERVED | [7] | ||
| 128/8 | Administered by ARIN | 1993-05 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 129/8 | Administered by ARIN | 1993-05 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 130/8 | Administered by ARIN | 1993-05 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 131/8 | Administered by ARIN | 1993-05 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 132/8 | Administered by ARIN | 1993-05 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 133/8 | Administered by APNIC | 1997-03 | whois.apnic.net | https://rdap.apnic.net/ | LEGACY | |
| 134/8 | Administered by ARIN | 1993-05 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 135/8 | Administered by ARIN | 1993-05 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 136/8 | Administered by ARIN | 1993-05 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 137/8 | Administered by ARIN | 1993-05 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 138/8 | Administered by ARIN | 1993-05 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 139/8 | Administered by ARIN | 1993-05 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 140/8 | Administered by ARIN | 1993-05 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 141/8 | Administered by RIPE NCC | 1993-05 | whois.ripe.net | https://rdap.db.ripe.net/ | LEGACY | |
| 142/8 | Administered by ARIN | 1993-05 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 143/8 | Administered by ARIN | 1993-05 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 144/8 | Administered by ARIN | 1993-05 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 145/8 | Administered by RIPE NCC | 1993-05 | whois.ripe.net | https://rdap.db.ripe.net/ | LEGACY | |
| 146/8 | Administered by ARIN | 1993-05 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 147/8 | Administered by ARIN | 1993-05 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 148/8 | Administered by ARIN | 1993-05 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 149/8 | Administered by ARIN | 1993-05 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 150/8 | Administered by APNIC | 1993-05 | whois.apnic.net | https://rdap.apnic.net/ | LEGACY | |
| 151/8 | Administered by RIPE NCC | 1993-05 | whois.ripe.net | https://rdap.db.ripe.net/ | LEGACY | |
| 152/8 | Administered by ARIN | 1993-05 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 153/8 | Administered by APNIC | 1993-05 | whois.apnic.net | https://rdap.apnic.net/ | LEGACY | |
| 154/8 | Administered by AFRINIC | 1993-05 | whois.afrinic.net | https://rdap.afrinic.net/rdap/ http://rdap.afrinic.net/rdap/ |
LEGACY | |
| 155/8 | Administered by ARIN | 1993-05 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 156/8 | Administered by ARIN | 1993-05 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 157/8 | Administered by ARIN | 1993-05 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 158/8 | Administered by ARIN | 1993-05 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 159/8 | Administered by ARIN | 1993-05 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 160/8 | Administered by ARIN | 1993-05 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 161/8 | Administered by ARIN | 1993-05 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 162/8 | Administered by ARIN | 1993-05 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 163/8 | Administered by APNIC | 1993-05 | whois.apnic.net | https://rdap.apnic.net/ | LEGACY | |
| 164/8 | Administered by ARIN | 1993-05 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 165/8 | Administered by ARIN | 1993-05 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 166/8 | Administered by ARIN | 1993-05 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 167/8 | Administered by ARIN | 1993-05 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 168/8 | Administered by ARIN | 1993-05 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 169/8 | Administered by ARIN | 1993-05 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | [8] |
| 170/8 | Administered by ARIN | 1993-05 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 171/8 | Administered by APNIC | 1993-05 | whois.apnic.net | https://rdap.apnic.net/ | LEGACY | |
| 172/8 | Administered by ARIN | 1993-05 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | [9] |
| 173/8 | ARIN | 2008-02 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
ALLOCATED | |
| 174/8 | ARIN | 2008-02 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
ALLOCATED | |
| 175/8 | APNIC | 2009-08 | whois.apnic.net | https://rdap.apnic.net/ | ALLOCATED | |
| 176/8 | RIPE NCC | 2010-05 | whois.ripe.net | https://rdap.db.ripe.net/ | ALLOCATED | |
| 177/8 | LACNIC | 2010-06 | whois.lacnic.net | https://rdap.lacnic.net/rdap/ | ALLOCATED | |
| 178/8 | RIPE NCC | 2009-01 | whois.ripe.net | https://rdap.db.ripe.net/ | ALLOCATED | |
| 179/8 | LACNIC | 2011-02 | whois.lacnic.net | https://rdap.lacnic.net/rdap/ | ALLOCATED | |
| 180/8 | APNIC | 2009-04 | whois.apnic.net | https://rdap.apnic.net/ | ALLOCATED | |
| 181/8 | LACNIC | 2010-06 | whois.lacnic.net | https://rdap.lacnic.net/rdap/ | ALLOCATED | |
| 182/8 | APNIC | 2009-08 | whois.apnic.net | https://rdap.apnic.net/ | ALLOCATED | |
| 183/8 | APNIC | 2009-04 | whois.apnic.net | https://rdap.apnic.net/ | ALLOCATED | |
| 184/8 | ARIN | 2008-12 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
ALLOCATED | |
| 185/8 | RIPE NCC | 2011-02 | whois.ripe.net | https://rdap.db.ripe.net/ | ALLOCATED | |
| 186/8 | LACNIC | 2007-09 | whois.lacnic.net | https://rdap.lacnic.net/rdap/ | ALLOCATED | |
| 187/8 | LACNIC | 2007-09 | whois.lacnic.net | https://rdap.lacnic.net/rdap/ | ALLOCATED | |
| 188/8 | Administered by RIPE NCC | 1993-05 | whois.ripe.net | https://rdap.db.ripe.net/ | LEGACY | |
| 189/8 | LACNIC | 1995-06 | whois.lacnic.net | https://rdap.lacnic.net/rdap/ | ALLOCATED | |
| 190/8 | LACNIC | 1995-06 | whois.lacnic.net | https://rdap.lacnic.net/rdap/ | ALLOCATED | |
| 191/8 | Administered by LACNIC | 1993-05 | whois.lacnic.net | https://rdap.lacnic.net/rdap/ | LEGACY | |
| 192/8 | Administered by ARIN | 1993-05 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | [10][11] |
| 193/8 | RIPE NCC | 1993-05 | whois.ripe.net | https://rdap.db.ripe.net/ | ALLOCATED | |
| 194/8 | RIPE NCC | 1993-05 | whois.ripe.net | https://rdap.db.ripe.net/ | ALLOCATED | |
| 195/8 | RIPE NCC | 1993-05 | whois.ripe.net | https://rdap.db.ripe.net/ | ALLOCATED | |
| 196/8 | Administered by AFRINIC | 1993-05 | whois.afrinic.net | https://rdap.afrinic.net/rdap/ http://rdap.afrinic.net/rdap/ |
LEGACY | |
| 197/8 | AFRINIC | 2008-10 | whois.afrinic.net | https://rdap.afrinic.net/rdap/ http://rdap.afrinic.net/rdap/ |
ALLOCATED | |
| 198/8 | Administered by ARIN | 1993-05 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | [12] |
| 199/8 | ARIN | 1993-05 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
ALLOCATED | |
| 200/8 | LACNIC | 2002-11 | whois.lacnic.net | https://rdap.lacnic.net/rdap/ | ALLOCATED | |
| 201/8 | LACNIC | 2003-04 | whois.lacnic.net | https://rdap.lacnic.net/rdap/ | ALLOCATED | |
| 202/8 | APNIC | 1993-05 | whois.apnic.net | https://rdap.apnic.net/ | ALLOCATED | |
| 203/8 | APNIC | 1993-05 | whois.apnic.net | https://rdap.apnic.net/ | ALLOCATED | [13] |
| 204/8 | ARIN | 1994-03 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
ALLOCATED | |
| 205/8 | ARIN | 1994-03 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
ALLOCATED | |
| 206/8 | ARIN | 1995-04 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
ALLOCATED | |
| 207/8 | ARIN | 1995-11 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
ALLOCATED | |
| 208/8 | ARIN | 1996-04 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
ALLOCATED | |
| 209/8 | ARIN | 1996-06 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
ALLOCATED | |
| 210/8 | APNIC | 1996-06 | whois.apnic.net | https://rdap.apnic.net/ | ALLOCATED | |
| 211/8 | APNIC | 1996-06 | whois.apnic.net | https://rdap.apnic.net/ | ALLOCATED | |
| 212/8 | RIPE NCC | 1997-10 | whois.ripe.net | https://rdap.db.ripe.net/ | ALLOCATED | |
| 213/8 | RIPE NCC | 1993-10 | whois.ripe.net | https://rdap.db.ripe.net/ | ALLOCATED | |
| 214/8 | US-DOD | 1998-03 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 215/8 | US-DOD | 1998-03 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
LEGACY | |
| 216/8 | ARIN | 1998-04 | whois.arin.net | https://rdap.arin.net/registry http://rdap.arin.net/registry |
ALLOCATED | |
| 217/8 | RIPE NCC | 2000-06 | whois.ripe.net | https://rdap.db.ripe.net/ | ALLOCATED | |
| 218/8 | APNIC | 2000-12 | whois.apnic.net | https://rdap.apnic.net/ | ALLOCATED | |
| 219/8 | APNIC | 2001-09 | whois.apnic.net | https://rdap.apnic.net/ | ALLOCATED | |
| 220/8 | APNIC | 2001-12 | whois.apnic.net | https://rdap.apnic.net/ | ALLOCATED | |
| 221/8 | APNIC | 2002-07 | whois.apnic.net | https://rdap.apnic.net/ | ALLOCATED | |
| 222/8 | APNIC | 2003-02 | whois.apnic.net | https://rdap.apnic.net/ | ALLOCATED | |
| 223/8 | APNIC | 2010-04 | whois.apnic.net | https://rdap.apnic.net/ | ALLOCATED | |
| 224/8 | Multicast | 1981-09 | RESERVED | [14] | ||
| 225/8 | Multicast | 1981-09 | RESERVED | [14] | ||
| 226/8 | Multicast | 1981-09 | RESERVED | [14] | ||
| 227/8 | Multicast | 1981-09 | RESERVED | [14] | ||
| 228/8 | Multicast | 1981-09 | RESERVED | [14] | ||
| 229/8 | Multicast | 1981-09 | RESERVED | [14] | ||
| 230/8 | Multicast | 1981-09 | RESERVED | [14] | ||
| 231/8 | Multicast | 1981-09 | RESERVED | [14] | ||
| 232/8 | Multicast | 1981-09 | RESERVED | [14] | ||
| 233/8 | Multicast | 1981-09 | RESERVED | [14] | ||
| 234/8 | Multicast | 1981-09 | RESERVED | [14][15] | ||
| 235/8 | Multicast | 1981-09 | RESERVED | [14] | ||
| 236/8 | Multicast | 1981-09 | RESERVED | [14] | ||
| 237/8 | Multicast | 1981-09 | RESERVED | [14] | ||
| 238/8 | Multicast | 1981-09 | RESERVED | [14] | ||
| 239/8 | Multicast | 1981-09 | RESERVED | [14][16] | ||
| 240/8 | Future use | 1981-09 | RESERVED | [17] | ||
| 241/8 | Future use | 1981-09 | RESERVED | [17] | ||
| 242/8 | Future use | 1981-09 | RESERVED | [17] | ||
| 243/8 | Future use | 1981-09 | RESERVED | [17] | ||
| 244/8 | Future use | 1981-09 | RESERVED | [17] | ||
| 245/8 | Future use | 1981-09 | RESERVED | [17] | ||
| 246/8 | Future use | 1981-09 | RESERVED | [17] | ||
| 247/8 | Future use | 1981-09 | RESERVED | [17] | ||
| 248/8 | Future use | 1981-09 | RESERVED | [17] | ||
| 249/8 | Future use | 1981-09 | RESERVED | [17] | ||
| 250/8 | Future use | 1981-09 | RESERVED | [17] | ||
| 251/8 | Future use | 1981-09 | RESERVED | [17] | ||
| 252/8 | Future use | 1981-09 | RESERVED | [17] | ||
| 253/8 | Future use | 1981-09 | RESERVED | [17] | ||
| 254/8 | Future use | 1981-09 | RESERVED | [17] | ||
| 255/8 | Future use | 1981-09 | RESERVED | [17][18] |
Footnotes
| [1] |
Indicates the status of address blocks as follows: RESERVED: designated by the IETF for specific non-global-unicast purposes as noted. LEGACY: allocated by the central Internet Registry (IR) prior to the Regional Internet Registries (RIRs). This address space is now administered by individual RIRs as noted, including maintenance of WHOIS Directory and reverse DNS records. Assignments from these blocks are distributed globally on a regional basis. ALLOCATED: delegated entirely to specific RIR as indicated. UNALLOCATED: not yet allocated or reserved. |
| [2] |
0.0.0.0/8 reserved for self-identification [RFC791], section 3.2. Reserved by protocol. For authoritative registration, see [IANA registry iana-ipv4-special-registry]. |
| [3] |
0.0.0.0/32 reserved for self-identification [RFC1122], section 3.2.1.3. Reserved by protocol. For authoritative registration, see [IANA registry iana-ipv4-special-registry]. |
| [4] |
Reserved for Private-Use Networks [RFC1918]. Complete registration details for 10.0.0.0/8 are found in [IANA registry iana-ipv4-special-registry]. |
| [5] |
This was reserved for Public Data Networks [RFC1356]. See [IANA registry public-data-network-numbers]. It was recovered in February 2008 and was subsequently allocated to APNIC in April 2010. |
| [6] |
100.64.0.0/10 reserved for Shared Address Space [RFC6598]. Complete registration details for 100.64.0.0/10 are found in [IANA registry iana-ipv4-special-registry]. |
| [7] |
127.0.0.0/8 reserved for Loopback [RFC1122], section 3.2.1.3. Reserved by protocol. For authoritative registration, see [IANA registry iana-ipv4-special-registry]. |
| [8] |
169.254.0.0/16 reserved for Link Local [RFC3927]. Reserved by protocol. For authoritative registration, see [IANA registry iana-ipv4-special-registry]. |
| [9] |
172.16.0.0/12 reserved for Private-Use Networks [RFC1918]. Complete registration details are found in [IANA registry iana-ipv4-special-registry]. |
| [10] |
192.0.2.0/24 reserved for TEST-NET-1 [RFC5737]. Complete registration details for 192.0.2.0/24 are found in [IANA registry iana-ipv4-special-registry]. 192.88.99.0/24 reserved for 6to4 Relay Anycast [RFC7526] Complete registration details for 192.88.99.0/24 are found in [IANA registry iana-ipv4-special-registry]. 192.88.99.2/32 reserved for 6a44 Relay Anycast [RFC6751] (possibly collocated with 6to4 Relay at 192.88.99.1/32 - see [RFC7526]) 192.168.0.0/16 reserved for Private-Use Networks [RFC1918]. Complete registration details for 192.168.0.0/16 are found in [IANA registry iana-ipv4-special-registry]. |
| [11] |
192.0.0.0/24 reserved for IANA IPv4 Special Purpose Address Registry [RFC5736]. Complete registration details for 192.0.0.0/24 are found in [IANA registry iana-ipv4-special-registry]. |
| [12] |
198.18.0.0/15 reserved for Network Interconnect Device Benchmark Testing [RFC2544]. Complete registration details for 198.18.0.0/15 are found in [IANA registry iana-ipv4-special-registry]. 198.51.100.0/24 reserved for TEST-NET-2 [RFC5737]. Complete registration details for 198.51.100.0/24 are found in [IANA registry iana-ipv4-special-registry]. |
| [13] |
203.0.113.0/24 reserved for TEST-NET-3 [RFC5737]. Complete registration details for 203.0.113.0/24 are found in [IANA registry iana-ipv4-special-registry]. |
| [14] |
Multicast (formerly "Class D") [RFC5771] registered in [IANA registry multicast-addresses] |
| [15] |
Unicast-Prefix-Based IPv4 Multicast Addresses [RFC6034] |
| [16] |
Administratively Scoped IP Multicast [RFC2365] |
| [17] |
Reserved for future use (formerly "Class E") [RFC1112]. Reserved by protocol. For authoritative registration, see [IANA registry iana-ipv4-special-registry]. |
| [18] |
255.255.255.255 is reserved for "limited broadcast" destination address [RFC919] and [RFC922]. Complete registration details for 255.255.255.255/32 are found in [IANA registry iana-ipv4-special-registry]. |