IP Address

Network Basic: IP Address

IP Address max string length

Type Max length Example
IPv4 15 123.123.123.123
IPv6 39 ABCD:ABCD:ABCD:ABCD:ABCD:ABCD:ABCD:ABCD
IPv4-mapped IPv6 45 ABCD:ABCD:ABCD:ABCD:ABCD:ABCD:123.123.123.123

Bogon IP Address

https://ipinfo.io/bogon

Some IP addresses and IP ranges are reserved for special use, such as for local or private networks, and should NOT appear on the public internet.

IPv4 Bogon Ranges

Netblock Description
0.0.0.0/8 “This” network
10.0.0.0/8 Private-use networks
100.64.0.0/10 Carrier-grade NAT
127.0.0.0/8 Loopback
127.0.53.53 Name collision occurrence
169.254.0.0/16 Link local
172.16.0.0/12 Private-use networks
192.0.0.0/24 IETF protocol assignments
192.0.2.0/24 TEST-NET-1
192.168.0.0/16 Private-use networks
198.18.0.0/15 Network interconnect device benchmark testing
198.51.100.0/24 TEST-NET-2
203.0.113.0/24 TEST-NET-3
224.0.0.0/4 Multicast
240.0.0.0/4 Reserved for future use
255.255.255.255/32 Limited broadcast

IPv6 Bogon Ranges

Netblock Description
::/128 Node-scope unicast unspecified address
::1/128 Node-scope unicast loopback address
::ffff:0:0/96 IPv4-mapped addresses
::/96 IPv4-compatible addresses
100::/64 Remotely triggered black hole addresses
2001:10::/28 Overlay routable cryptographic hash identifiers (ORCHID)
2001:db8::/32 Documentation prefix
fc00::/7 Unique local addresses (ULA)
fe80::/10 Link-local unicast
fec0::/10 Site-local unicast (deprecated)
ff00::/8 Multicast (Note: ff0e:/16 is global scope and may appear on the global internet.)

IPv6 Additional Bogon Ranges

These ranges AREN’T officially IPv6 bogon ranges - they’re IPv6 representations of different IPv4 bogon ranges.

Netblock Description
2002::/24 6to4 bogon (0.0.0.0/8)
2002:a00::/24 6to4 bogon (10.0.0.0/8)
2002:7f00::/24 6to4 bogon (127.0.0.0/8)
2002:a9fe::/32 6to4 bogon (169.254.0.0/16)
2002:ac10::/28 6to4 bogon (172.16.0.0/12)
2002:c000::/40 6to4 bogon (192.0.0.0/24)
2002:c000:200::/40 6to4 bogon (192.0.2.0/24)
2002:c0a8::/32 6to4 bogon (192.168.0.0/16)
2002:c612::/31 6to4 bogon (198.18.0.0/15)
2002:c633:6400::/40 6to4 bogon (198.51.100.0/24)
2002:cb00:7100::/40 6to4 bogon (203.0.113.0/24)
2002:e000::/20 6to4 bogon (224.0.0.0/4)
2002:f000::/20 6to4 bogon (240.0.0.0/4)
2002:ffff:ffff::/48 6to4 bogon (255.255.255.255/32)
2001::/40 Teredo bogon (0.0.0.0/8)
2001:0:a00::/40 Teredo bogon (10.0.0.0/8)
2001:0:7f00::/40 Teredo bogon (127.0.0.0/8)
2001:0:a9fe::/48 Teredo bogon (169.254.0.0/16)
2001:0:ac10::/44 Teredo bogon (172.16.0.0/12)
2001:0:c000::/56 Teredo bogon (192.0.0.0/24)
2001:0:c000:200::/56 Teredo bogon (192.0.2.0/24)
2001:0:c0a8::/48 Teredo bogon (192.168.0.0/16)
2001:0:c612::/47 Teredo bogon (198.18.0.0/15)
2001:0:c633:6400::/56 Teredo bogon (198.51.100.0/24)
2001:0:cb00:7100::/56 Teredo bogon (203.0.113.0/24)
2001:0:e000::/36 Teredo bogon (224.0.0.0/4)
2001:0:f000::/36 Teredo bogon (240.0.0.0/4)
2001:0:ffff:ffff::/64 Teredo bogon (255.255.255.255/32)

Reference