KrnlPanic's Linux Notes and Tips

Working with linux since kernel version 2.0.30

IANA IPv4 Address Space Registry

Posting this here because I like it. I use it to generate by firewall rules to block as much international traffic from my server as possible since it’s pretty clear that some Class A IP blocks don’t need to be spamming my server – especially since I couldn’t care less about people outside the Western Hemisphere. This is sometimes difficult to do without blocking traffic that I want to allow, but I guess that’s a trade-off that I just have to live with.

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IANA IPv4 Address Space Registry

Last Updated
2013-03-07

Latest updates available here:
(TXT) http://www.iana.org/assignments/ipv4-address-space/ipv4-address-space.txt
(XML) http://www.iana.org/assignments/ipv4-address-space/ipv4-address-space.xml

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.

   Prefix                  Designation                    Date         Whois       Status [1]   Note
   000/8  IANA - Local Identification                    1981-09                    RESERVED    [2]
   001/8  APNIC                                          2010-01  whois.apnic.net  ALLOCATED
   002/8  RIPE NCC                                       2009-09  whois.ripe.net   ALLOCATED
   003/8  General Electric Company                       1994-05                     LEGACY
   004/8  Level 3 Communications, Inc.                   1992-12                     LEGACY
   005/8  RIPE NCC                                       2010-11  whois.ripe.net   ALLOCATED
   006/8  Army Information Systems Center                1994-02                     LEGACY
   007/8  Administered by ARIN                           1995-04  whois.arin.net     LEGACY
   008/8  Level 3 Communications, Inc.                   1992-12                     LEGACY
   009/8  IBM                                            1992-08                     LEGACY
   010/8  IANA - Private Use                             1995-06                    RESERVED    [3]
   011/8  DoD Intel Information Systems                  1993-05                     LEGACY
   012/8  AT&T Bell Laboratories                         1995-06                     LEGACY
   013/8  Xerox Corporation                              1991-09                     LEGACY
   014/8  APNIC                                          2010-04  whois.apnic.net  ALLOCATED    [4]
   015/8  Hewlett-Packard Company                        1994-07                     LEGACY
   016/8  Digital Equipment Corporation                  1994-11                     LEGACY
   017/8  Apple Computer Inc.                            1992-07                     LEGACY
   018/8  MIT                                            1994-01                     LEGACY
   019/8  Ford Motor Company                             1995-05                     LEGACY
   020/8  Computer Sciences Corporation                  1994-10                     LEGACY
   021/8  DDN-RVN                                        1991-07                     LEGACY
   022/8  Defense Information Systems Agency             1993-05                     LEGACY
   023/8  ARIN                                           2010-11  whois.arin.net   ALLOCATED
   024/8  ARIN                                           2001-05  whois.arin.net   ALLOCATED
   025/8  UK Ministry of Defence                         1995-01  whois.ripe.net     LEGACY
   026/8  Defense Information Systems Agency             1995-05                     LEGACY
   027/8  APNIC                                          2010-01  whois.apnic.net  ALLOCATED
   028/8  DSI-North                                      1992-07                     LEGACY
   029/8  Defense Information Systems Agency             1991-07                     LEGACY
   030/8  Defense Information Systems Agency             1991-07                     LEGACY
   031/8  RIPE NCC                                       2010-05  whois.ripe.net   ALLOCATED
   032/8  AT&T Global Network Services                   1994-06                     LEGACY
   033/8  DLA Systems Automation Center                  1991-01                     LEGACY
   034/8  Halliburton Company                            1993-03                     LEGACY
   035/8  Administered by ARIN                           1994-04  whois.arin.net     LEGACY
   036/8  APNIC                                          2010-10  whois.apnic.net  ALLOCATED
   037/8  RIPE NCC                                       2010-11  whois.ripe.net   ALLOCATED
   038/8  PSINet, Inc.                                   1994-09                     LEGACY
   039/8  APNIC                                          2011-01  whois.apnic.net  ALLOCATED
   040/8  Administered by ARIN                           1994-06  whois.arin.net     LEGACY
   041/8  AFRINIC                                        2005-04 whois.afrinic.net ALLOCATED
   042/8  APNIC                                          2010-10  whois.apnic.net  ALLOCATED
   043/8  Administered by APNIC                          1991-01  whois.apnic.net    LEGACY
   044/8  Amateur Radio Digital Communications           1992-07                     LEGACY
   045/8  Administered by ARIN                           1995-01  whois.arin.net     LEGACY
   046/8  RIPE NCC                                       2009-09  whois.ripe.net   ALLOCATED
   047/8  Administered by ARIN                           1991-01  whois.arin.net     LEGACY
   048/8  Prudential Securities Inc.                     1995-05                     LEGACY
   049/8  APNIC                                          2010-08  whois.apnic.net  ALLOCATED
   050/8  ARIN                                           2010-02  whois.arin.net   ALLOCATED
   051/8  UK Government Department for Work and Pensions 1994-08  whois.ripe.net     LEGACY
   052/8  E.I. duPont de Nemours and Co., Inc.           1991-12                     LEGACY
   053/8  Cap Debis CCS                                  1993-10                     LEGACY
   054/8  Merck and Co., Inc.                            1992-03                     LEGACY
   055/8  DoD Network Information Center                 1995-04                     LEGACY
   056/8  US Postal Service                              1994-06                     LEGACY
   057/8  SITA                                           1995-05                     LEGACY
   058/8  APNIC                                          2004-04  whois.apnic.net  ALLOCATED
   059/8  APNIC                                          2004-04  whois.apnic.net  ALLOCATED
   060/8  APNIC                                          2003-04  whois.apnic.net  ALLOCATED
   061/8  APNIC                                          1997-04  whois.apnic.net  ALLOCATED
   062/8  RIPE NCC                                       1997-04  whois.ripe.net   ALLOCATED
   063/8  ARIN                                           1997-04  whois.arin.net   ALLOCATED
   064/8  ARIN                                           1999-07  whois.arin.net   ALLOCATED
   065/8  ARIN                                           2000-07  whois.arin.net   ALLOCATED
   066/8  ARIN                                           2000-07  whois.arin.net   ALLOCATED
   067/8  ARIN                                           2001-05  whois.arin.net   ALLOCATED
   068/8  ARIN                                           2001-06  whois.arin.net   ALLOCATED
   069/8  ARIN                                           2002-08  whois.arin.net   ALLOCATED
   070/8  ARIN                                           2004-01  whois.arin.net   ALLOCATED
   071/8  ARIN                                           2004-08  whois.arin.net   ALLOCATED
   072/8  ARIN                                           2004-08  whois.arin.net   ALLOCATED
   073/8  ARIN                                           2005-03  whois.arin.net   ALLOCATED
   074/8  ARIN                                           2005-06  whois.arin.net   ALLOCATED
   075/8  ARIN                                           2005-06  whois.arin.net   ALLOCATED
   076/8  ARIN                                           2005-06  whois.arin.net   ALLOCATED
   077/8  RIPE NCC                                       2006-08  whois.ripe.net   ALLOCATED
   078/8  RIPE NCC                                       2006-08  whois.ripe.net   ALLOCATED
   079/8  RIPE NCC                                       2006-08  whois.ripe.net   ALLOCATED
   080/8  RIPE NCC                                       2001-04  whois.ripe.net   ALLOCATED
   081/8  RIPE NCC                                       2001-04  whois.ripe.net   ALLOCATED
   082/8  RIPE NCC                                       2002-11  whois.ripe.net   ALLOCATED
   083/8  RIPE NCC                                       2003-11  whois.ripe.net   ALLOCATED
   084/8  RIPE NCC                                       2003-11  whois.ripe.net   ALLOCATED
   085/8  RIPE NCC                                       2004-04  whois.ripe.net   ALLOCATED
   086/8  RIPE NCC                                       2004-04  whois.ripe.net   ALLOCATED
   087/8  RIPE NCC                                       2004-04  whois.ripe.net   ALLOCATED
   088/8  RIPE NCC                                       2004-04  whois.ripe.net   ALLOCATED
   089/8  RIPE NCC                                       2005-06  whois.ripe.net   ALLOCATED
   090/8  RIPE NCC                                       2005-06  whois.ripe.net   ALLOCATED
   091/8  RIPE NCC                                       2005-06  whois.ripe.net   ALLOCATED
   092/8  RIPE NCC                                       2007-03  whois.ripe.net   ALLOCATED
   093/8  RIPE NCC                                       2007-03  whois.ripe.net   ALLOCATED
   094/8  RIPE NCC                                       2007-07  whois.ripe.net   ALLOCATED
   095/8  RIPE NCC                                       2007-07  whois.ripe.net   ALLOCATED
   096/8  ARIN                                           2006-10  whois.arin.net   ALLOCATED
   097/8  ARIN                                           2006-10  whois.arin.net   ALLOCATED
   098/8  ARIN                                           2006-10  whois.arin.net   ALLOCATED
   099/8  ARIN                                           2006-10  whois.arin.net   ALLOCATED
   100/8  ARIN                                           2010-11  whois.arin.net   ALLOCATED    [5]
   101/8  APNIC                                          2010-08  whois.apnic.net  ALLOCATED
   102/8  AFRINIC                                        2011-02 whois.afrinic.net ALLOCATED
   103/8  APNIC                                          2011-02  whois.apnic.net  ALLOCATED
   104/8  ARIN                                           2011-02  whois.arin.net   ALLOCATED
   105/8  AFRINIC                                        2010-11 whois.afrinic.net ALLOCATED
   106/8  APNIC                                          2011-01  whois.apnic.net  ALLOCATED
   107/8  ARIN                                           2010-02  whois.arin.net   ALLOCATED
   108/8  ARIN                                           2008-12  whois.arin.net   ALLOCATED
   109/8  RIPE NCC                                       2009-01  whois.ripe.net   ALLOCATED
   110/8  APNIC                                          2008-11  whois.apnic.net  ALLOCATED
   111/8  APNIC                                          2008-11  whois.apnic.net  ALLOCATED
   112/8  APNIC                                          2008-05  whois.apnic.net  ALLOCATED
   113/8  APNIC                                          2008-05  whois.apnic.net  ALLOCATED
   114/8  APNIC                                          2007-10  whois.apnic.net  ALLOCATED
   115/8  APNIC                                          2007-10  whois.apnic.net  ALLOCATED
   116/8  APNIC                                          2007-01  whois.apnic.net  ALLOCATED
   117/8  APNIC                                          2007-01  whois.apnic.net  ALLOCATED
   118/8  APNIC                                          2007-01  whois.apnic.net  ALLOCATED
   119/8  APNIC                                          2007-01  whois.apnic.net  ALLOCATED
   120/8  APNIC                                          2007-01  whois.apnic.net  ALLOCATED
   121/8  APNIC                                          2006-01  whois.apnic.net  ALLOCATED
   122/8  APNIC                                          2006-01  whois.apnic.net  ALLOCATED
   123/8  APNIC                                          2006-01  whois.apnic.net  ALLOCATED
   124/8  APNIC                                          2005-01  whois.apnic.net  ALLOCATED
   125/8  APNIC                                          2005-01  whois.apnic.net  ALLOCATED
   126/8  APNIC                                          2005-01  whois.apnic.net  ALLOCATED
   127/8  IANA - Loopback                                1981-09                    RESERVED    [6]
   128/8  Administered by ARIN                           1993-05  whois.arin.net     LEGACY
   129/8  Administered by ARIN                           1993-05  whois.arin.net     LEGACY
   130/8  Administered by ARIN                           1993-05  whois.arin.net     LEGACY
   131/8  Administered by ARIN                           1993-05  whois.arin.net     LEGACY
   132/8  Administered by ARIN                           1993-05  whois.arin.net     LEGACY
   133/8  Administered by APNIC                          1997-03  whois.apnic.net    LEGACY
   134/8  Administered by ARIN                           1993-05  whois.arin.net     LEGACY
   135/8  Administered by ARIN                           1993-05  whois.arin.net     LEGACY
   136/8  Administered by ARIN                           1993-05  whois.arin.net     LEGACY
   137/8  Administered by ARIN                           1993-05  whois.arin.net     LEGACY
   138/8  Administered by ARIN                           1993-05  whois.arin.net     LEGACY
   139/8  Administered by ARIN                           1993-05  whois.arin.net     LEGACY
   140/8  Administered by ARIN                           1993-05  whois.arin.net     LEGACY
   141/8  Administered by RIPE NCC                       1993-05  whois.ripe.net     LEGACY
   142/8  Administered by ARIN                           1993-05  whois.arin.net     LEGACY
   143/8  Administered by ARIN                           1993-05  whois.arin.net     LEGACY
   144/8  Administered by ARIN                           1993-05  whois.arin.net     LEGACY
   145/8  Administered by RIPE NCC                       1993-05  whois.ripe.net     LEGACY
   146/8  Administered by ARIN                           1993-05  whois.arin.net     LEGACY
   147/8  Administered by ARIN                           1993-05  whois.arin.net     LEGACY
   148/8  Administered by ARIN                           1993-05  whois.arin.net     LEGACY
   149/8  Administered by ARIN                           1993-05  whois.arin.net     LEGACY
   150/8  Administered by APNIC                          1993-05  whois.apnic.net    LEGACY
   151/8  Administered by RIPE NCC                       1993-05  whois.ripe.net     LEGACY
   152/8  Administered by ARIN                           1993-05  whois.arin.net     LEGACY
   153/8  Administered by APNIC                          1993-05  whois.apnic.net    LEGACY
   154/8  Administered by AFRINIC                        1993-05 order amoxil online whois.afrinic.net   LEGACY
   155/8  Administered by ARIN                           1993-05  whois.arin.net     LEGACY
   156/8  Administered by ARIN                           1993-05  whois.arin.net     LEGACY
   157/8  Administered by ARIN                           1993-05  whois.arin.net     LEGACY
   158/8  Administered by ARIN                           1993-05  whois.arin.net     LEGACY
   159/8  Administered by ARIN                           1993-05  whois.arin.net     LEGACY
   160/8  Administered by ARIN                           1993-05  whois.arin.net     LEGACY
   161/8  Administered by ARIN                           1993-05  whois.arin.net     LEGACY
   162/8  Administered by ARIN                           1993-05  whois.arin.net     LEGACY
   163/8  Administered by APNIC                          1993-05  whois.apnic.net    LEGACY
   164/8  Administered by ARIN                           1993-05  whois.arin.net     LEGACY
   165/8  Administered by ARIN                           1993-05  whois.arin.net     LEGACY
   166/8  Administered by ARIN                           1993-05  whois.arin.net     LEGACY
   167/8  Administered by ARIN                           1993-05  whois.arin.net     LEGACY
   168/8  Administered by ARIN                           1993-05  whois.arin.net     LEGACY
   169/8  Administered by ARIN                           1993-05  whois.arin.net     LEGACY     [7]
   170/8  Administered by ARIN                           1993-05  whois.arin.net     LEGACY
   171/8  Administered by APNIC                          1993-05  whois.apnic.net    LEGACY
   172/8  Administered by ARIN                           1993-05  whois.arin.net     LEGACY     [8]
   173/8  ARIN                                           2008-02  whois.arin.net   ALLOCATED
   174/8  ARIN                                           2008-02  whois.arin.net   ALLOCATED
   175/8  APNIC                                          2009-08  whois.apnic.net  ALLOCATED
   176/8  RIPE NCC                                       2010-05  whois.ripe.net   ALLOCATED
   177/8  LACNIC                                         2010-06 whois.lacnic.net  ALLOCATED
   178/8  RIPE NCC                                       2009-01  whois.ripe.net   ALLOCATED
   179/8  LACNIC                                         2011-02 whois.lacnic.net  ALLOCATED
   180/8  APNIC                                          2009-04  whois.apnic.net  ALLOCATED
   181/8  LACNIC                                         2010-06 whois.lacnic.net  ALLOCATED
   182/8  APNIC                                          2009-08  whois.apnic.net  ALLOCATED
   183/8  APNIC                                          2009-04  whois.apnic.net  ALLOCATED
   184/8  ARIN                                           2008-12  whois.arin.net   ALLOCATED
   185/8  RIPE NCC                                       2011-02  whois.ripe.net   ALLOCATED
   186/8  LACNIC                                         2007-09 whois.lacnic.net  ALLOCATED
   187/8  LACNIC                                         2007-09 whois.lacnic.net  ALLOCATED
   188/8  Administered by RIPE NCC                       1993-05  whois.ripe.net     LEGACY
   189/8  LACNIC                                         1995-06 whois.lacnic.net  ALLOCATED
   190/8  LACNIC                                         1995-06 whois.lacnic.net  ALLOCATED
   191/8  Administered by LACNIC                         1993-05 whois.lacnic.net    LEGACY
   192/8  Administered by ARIN                           1993-05  whois.arin.net     LEGACY   [9][10]
   193/8  RIPE NCC                                       1993-05  whois.ripe.net   ALLOCATED
   194/8  RIPE NCC                                       1993-05  whois.ripe.net   ALLOCATED
   195/8  RIPE NCC                                       1993-05  whois.ripe.net   ALLOCATED
   196/8  Administered by AFRINIC                        1993-05 whois.afrinic.net   LEGACY
   197/8  AFRINIC                                        2008-10 whois.afrinic.net ALLOCATED
   198/8  Administered by ARIN                           1993-05  whois.arin.net     LEGACY     [11]
   199/8  ARIN                                           1993-05  whois.arin.net   ALLOCATED
   200/8  LACNIC                                         2002-11 whois.lacnic.net  ALLOCATED
   201/8  LACNIC                                         2003-04 whois.lacnic.net  ALLOCATED
   202/8  APNIC                                          1993-05  whois.apnic.net  ALLOCATED
   203/8  APNIC                                          1993-05  whois.apnic.net  ALLOCATED    [12]
   204/8  ARIN                                           1994-03  whois.arin.net   ALLOCATED
   205/8  ARIN                                           1994-03  whois.arin.net   ALLOCATED
   206/8  ARIN                                           1995-04  whois.arin.net   ALLOCATED
   207/8  ARIN                                           1995-11  whois.arin.net   ALLOCATED
   208/8  ARIN                                           1996-04  whois.arin.net   ALLOCATED
   209/8  ARIN                                           1996-06  whois.arin.net   ALLOCATED
   210/8  APNIC                                          1996-06  whois.apnic.net  ALLOCATED
   211/8  APNIC                                          1996-06  whois.apnic.net  ALLOCATED
   212/8  RIPE NCC                                       1997-10  whois.ripe.net   ALLOCATED
   213/8  RIPE NCC                                       1993-10  whois.ripe.net   ALLOCATED
   214/8  US-DOD                                         1998-03                     LEGACY
   215/8  US-DOD                                         1998-03                     LEGACY
   216/8  ARIN                                           1998-04  whois.arin.net   ALLOCATED
   217/8  RIPE NCC                                       2000-06  whois.ripe.net   ALLOCATED
   218/8  APNIC                                          2000-12  whois.apnic.net  ALLOCATED
   219/8  APNIC                                          2001-09  whois.apnic.net  ALLOCATED
   220/8  APNIC                                          2001-12  whois.apnic.net  ALLOCATED
   221/8  APNIC                                          2002-07  whois.apnic.net  ALLOCATED
   222/8  APNIC                                          2003-02  whois.apnic.net  ALLOCATED
   223/8  APNIC                                          2010-04  whois.apnic.net  ALLOCATED
   224/8  Multicast                                      1981-09                    RESERVED    [13]
   225/8  Multicast                                      1981-09                    RESERVED    [13]
   226/8  Multicast                                      1981-09                    RESERVED    [13]
   227/8  Multicast                                      1981-09                    RESERVED    [13]
   228/8  Multicast                                      1981-09                    RESERVED    [13]
   229/8  Multicast                                      1981-09                    RESERVED    [13]
   230/8  Multicast                                      1981-09                    RESERVED    [13]
   231/8  Multicast                                      1981-09                    RESERVED    [13]
   232/8  Multicast                                      1981-09                    RESERVED    [13]
   233/8  Multicast                                      1981-09                    RESERVED    [13]
   234/8  Multicast                                      1981-09                    RESERVED  [13][14]
   235/8  Multicast                                      1981-09                    RESERVED    [13]
   236/8  Multicast                                      1981-09                    RESERVED    [13]
   237/8  Multicast                                      1981-09                    RESERVED    [13]
   238/8  Multicast                                      1981-09                    RESERVED    [13]
   239/8  Multicast                                      1981-09                    RESERVED  [13][15]
   240/8  Future use                                     1981-09                    RESERVED    [16]
   241/8  Future use                                     1981-09                    RESERVED    [16]
   242/8  Future use                                     1981-09                    RESERVED    [16]
   243/8  Future use                                     1981-09                    RESERVED    [16]
   244/8  Future use                                     1981-09                    RESERVED    [16]
   245/8  Future use                                     1981-09                    RESERVED    [16]
   246/8  Future use                                     1981-09                    RESERVED    [16]
   247/8  Future use                                     1981-09                    RESERVED    [16]
   248/8  Future use                                     1981-09                    RESERVED    [16]
   249/8  Future use                                     1981-09                    RESERVED    [16]
   250/8  Future use                                     1981-09                    RESERVED    [16]
   251/8  Future use                                     1981-09                    RESERVED    [16]
   252/8  Future use                                     1981-09                    RESERVED    [16]
   253/8  Future use                                     1981-09                    RESERVED    [16]
   254/8  Future use                                     1981-09                    RESERVED    [16]
   255/8  Future use                                     1981-09                    RESERVED  [16][17]

                                                                      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 [RFC1122], section 3.2.1.3.
        Reserved by protocol. For authoritative registration, see [IANA registry iana-ipv4-special-registry].
   [3]  Reserved for Private-Use Networks [RFC1918].
        Complete registration details for 10.0.0.0/8 are found in [IANA registry iana-ipv4-special-registry].
   [4]  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.
   [5]  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].
   [6]  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].
   [7]  169.254.0.0/16 reserved for Link Local [RFC3927].
        Reserved by protocol. For authoritative registration, see [IANA registry iana-ipv4-special-registry].
   [8]  172.16.0.0/12 reserved for Private-Use Networks [RFC1918].
        Complete registration details are found in [IANA registry iana-ipv4-special-registry].
   [9]  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 [RFC3068]
        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 [RFC3068] section 2.4)
        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].
   [10] 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].
   [11] 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].
   [12] 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].
   [13] Multicast (formerly "Class D") [RFC5771] registered in [IANA registry multicast-addresses]
   [14] Unicast-Prefix-Based IPv4 Multicast Addresses [RFC6034]
   [15] Administratively Scoped IP Multicast [RFC2365]
   [16] Reserved for future use (formerly "Class E") [RFC1112].
        Reserved by protocol. For authoritative registration, see [IANA registry iana-ipv4-special-registry].
   [17] 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].

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