IANA IPv4 Address Space Registry
Internet Protocol version 4 (IPv4) Address Space
2019-12-27
Allocations to RIRs are made in line with the Global Policy published at .
All other assignments require IETF Review.
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 documents most of these allocations.
000/8
IANA - Local Identification
1981-09
RESERVED
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
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
ALLOCATED
https://rdap.apnic.net/
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
Prudential Securities Inc.
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
US Postal Service
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
ALLOCATED
https://rdap.arin.net/registry
http://rdap.arin.net/registry
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
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
LEGACY
https://rdap.arin.net/registry
http://rdap.arin.net/registry
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
LEGACY
https://rdap.arin.net/registry
http://rdap.arin.net/registry
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
LEGACY
https://rdap.arin.net/registry
http://rdap.arin.net/registry
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
LEGACY
https://rdap.arin.net/registry
http://rdap.arin.net/registry
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
ALLOCATED
https://rdap.apnic.net/
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
225/8
Multicast
1981-09
RESERVED
226/8
Multicast
1981-09
RESERVED
227/8
Multicast
1981-09
RESERVED
228/8
Multicast
1981-09
RESERVED
229/8
Multicast
1981-09
RESERVED
230/8
Multicast
1981-09
RESERVED
231/8
Multicast
1981-09
RESERVED
232/8
Multicast
1981-09
RESERVED
233/8
Multicast
1981-09
RESERVED
234/8
Multicast
1981-09
RESERVED
235/8
Multicast
1981-09
RESERVED
236/8
Multicast
1981-09
RESERVED
237/8
Multicast
1981-09
RESERVED
238/8
Multicast
1981-09
RESERVED
239/8
Multicast
1981-09
RESERVED
240/8
Future use
1981-09
RESERVED
241/8
Future use
1981-09
RESERVED
242/8
Future use
1981-09
RESERVED
243/8
Future use
1981-09
RESERVED
244/8
Future use
1981-09
RESERVED
245/8
Future use
1981-09
RESERVED
246/8
Future use
1981-09
RESERVED
247/8
Future use
1981-09
RESERVED
248/8
Future use
1981-09
RESERVED
249/8
Future use
1981-09
RESERVED
250/8
Future use
1981-09
RESERVED
251/8
Future use
1981-09
RESERVED
252/8
Future use
1981-09
RESERVED
253/8
Future use
1981-09
RESERVED
254/8
Future use
1981-09
RESERVED
255/8
Future use
1981-09
RESERVED
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.
0.0.0.0/8 reserved for self-identification , section 3.2.1.3.
Reserved by protocol. For authoritative registration, see .
Reserved for Private-Use Networks .
Complete registration details for 10.0.0.0/8 are found in .
This was reserved for Public Data Networks . See .
It was recovered in February 2008 and was subsequently allocated to APNIC in April 2010.
100.64.0.0/10 reserved for Shared Address Space .
Complete registration details for 100.64.0.0/10 are found in .
127.0.0.0/8 reserved for Loopback , section 3.2.1.3.
Reserved by protocol. For authoritative registration, see .
169.254.0.0/16 reserved for Link Local .
Reserved by protocol. For authoritative registration, see .
172.16.0.0/12 reserved for Private-Use Networks .
Complete registration details are found in .
192.0.2.0/24 reserved for TEST-NET-1 .
Complete registration details for 192.0.2.0/24 are found in .
192.88.99.0/24 reserved for 6to4 Relay Anycast
Complete registration details for 192.88.99.0/24 are found in .
192.88.99.2/32 reserved for 6a44 Relay Anycast (possibly collocated with 6to4 Relay
at 192.88.99.1/32 - see )
192.168.0.0/16 reserved for Private-Use Networks .
Complete registration details for 192.168.0.0/16 are found in .
192.0.0.0/24 reserved for IANA IPv4 Special Purpose Address Registry .
Complete registration details for 192.0.0.0/24 are found in .
198.18.0.0/15 reserved for Network Interconnect Device Benchmark Testing .
Complete registration details for 198.18.0.0/15 are found in .
198.51.100.0/24 reserved for TEST-NET-2 .
Complete registration details for 198.51.100.0/24 are found in .
203.0.113.0/24 reserved for TEST-NET-3 .
Complete registration details for 203.0.113.0/24 are found in .
Multicast (formerly "Class D") registered in
Unicast-Prefix-Based IPv4 Multicast Addresses
Administratively Scoped IP Multicast
Reserved for future use (formerly "Class E") .
Reserved by protocol. For authoritative registration, see .
255.255.255.255 is reserved for "limited broadcast" destination address and .
Complete registration details for 255.255.255.255/32 are found in .