github.com/letsencrypt/boulder@v0.20251208.0/iana/data/iana-ipv4-special-registry-1.csv (about)

     1  Address Block,Name,RFC,Allocation Date,Termination Date,Source,Destination,Forwardable,Globally Reachable,Reserved-by-Protocol
     2  0.0.0.0/8,"""This network""","[RFC791], Section 3.2",1981-09,N/A,True,False,False,False,True
     3  0.0.0.0/32,"""This host on this network""","[RFC1122], Section 3.2.1.3",1981-09,N/A,True,False,False,False,True
     4  10.0.0.0/8,Private-Use,[RFC1918],1996-02,N/A,True,True,True,False,False
     5  100.64.0.0/10,Shared Address Space,[RFC6598],2012-04,N/A,True,True,True,False,False
     6  127.0.0.0/8,Loopback,"[RFC1122], Section 3.2.1.3",1981-09,N/A,False [1],False [1],False [1],False [1],True
     7  169.254.0.0/16,Link Local,[RFC3927],2005-05,N/A,True,True,False,False,True
     8  172.16.0.0/12,Private-Use,[RFC1918],1996-02,N/A,True,True,True,False,False
     9  192.0.0.0/24 [2],IETF Protocol Assignments,"[RFC6890], Section 2.1",2010-01,N/A,False,False,False,False,False
    10  192.0.0.0/29,IPv4 Service Continuity Prefix,[RFC7335],2011-06,N/A,True,True,True,False,False
    11  192.0.0.8/32,IPv4 dummy address,[RFC7600],2015-03,N/A,True,False,False,False,False
    12  192.0.0.9/32,Port Control Protocol Anycast,[RFC7723],2015-10,N/A,True,True,True,True,False
    13  192.0.0.10/32,Traversal Using Relays around NAT Anycast,[RFC8155],2017-02,N/A,True,True,True,True,False
    14  "192.0.0.170/32, 192.0.0.171/32",NAT64/DNS64 Discovery,"[RFC8880][RFC7050], Section 2.2",2013-02,N/A,False,False,False,False,True
    15  192.0.2.0/24,Documentation (TEST-NET-1),[RFC5737],2010-01,N/A,False,False,False,False,False
    16  192.31.196.0/24,AS112-v4,[RFC7535],2014-12,N/A,True,True,True,True,False
    17  192.52.193.0/24,AMT,[RFC7450],2014-12,N/A,True,True,True,True,False
    18  192.88.99.0/24,Deprecated (6to4 Relay Anycast),[RFC7526],2001-06,2015-03,,,,,
    19  192.88.99.2/32,6a44-relay anycast address,[RFC6751],2012-10,N/A,True,True,True,False,False
    20  192.168.0.0/16,Private-Use,[RFC1918],1996-02,N/A,True,True,True,False,False
    21  192.175.48.0/24,Direct Delegation AS112 Service,[RFC7534],1996-01,N/A,True,True,True,True,False
    22  198.18.0.0/15,Benchmarking,[RFC2544],1999-03,N/A,True,True,True,False,False
    23  198.51.100.0/24,Documentation (TEST-NET-2),[RFC5737],2010-01,N/A,False,False,False,False,False
    24  203.0.113.0/24,Documentation (TEST-NET-3),[RFC5737],2010-01,N/A,False,False,False,False,False
    25  240.0.0.0/4,Reserved,"[RFC1112], Section 4",1989-08,N/A,False,False,False,False,True
    26  255.255.255.255/32,Limited Broadcast,"[RFC8190]
    27          [RFC919], Section 7",1984-10,N/A,False,True,False,False,True