dwallraff/reserved_addresses.md

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Tables of Reserved IP Addresses (blatantly stolen from https://en.wikipedia.org/wiki/Reserved_IP_addresses)

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reserved_addresses.md

IPv4 Reserved IP Addresses

Address block (CIDR)	Range	Number of Addresses	Scope	Decsription
0.0.0.0/8	0.0.0.0–0.255.255.255	16,777,216	Software	Current (local, "this") network
10.0.0.0/8	10.0.0.0–10.255.255.255	16,777,216	Private network	Used for local communications within a private network
100.64.0.0/10	100.64.0.0–100.127.255.255	4,194,304	Private network	IPv4 shared address space
127.0.0.0/8	127.0.0.0–127.255.255.255	16,777,216	Host	Used for loopback addresses to the local host
169.254.0.0/16	169.254.0.0–169.254.255.255	65,536	Subnet	Used for link-local addresses3927 between two hosts on a single link when no IP address is otherwise specified, such as would have normally been retrieved from a DHCP server
172.16.0.0/12	172.16.0.0–172.31.255.255	1,048,576	Private network	Used for local communications within a private network
192.0.0.0/24	192.0.0.0–192.0.0.255	256	Private network	IETF Protocol Assignments, DS-Lite (/29)
192.0.2.0/24	192.0.2.0–192.0.2.255	256	Documentation	Assigned as TEST-NET-1, documentation and examples5737
192.88.99.0/24	192.88.99.0–192.88.99.255	256	Internet	Reserved.7526 Formerly used for 6to4
192.168.0.0/16	192.168.0.0–192.168.255.255	65,536	Private network	Used for local communications within a private network
198.18.0.0/15	198.18.0.0–198.19.255.255	131,072	Private network	Used for benchmark testing of inter-network communications between two separate subnets2544
198.51.100.0/24	198.51.100.0–198.51.100.255	256	Documentation	Assigned as TEST-NET-2, documentation and examples
203.0.113.0/24	203.0.113.0–203.0.113.255	256	Documentation	Assigned as TEST-NET-3, documentation and examples
224.0.0.0/4	224.0.0.0–239.255.255.255	268,435,456	Internet	In use for IP multicast
233.252.0.0/24	233.252.0.0-233.252.0.255	256	Documentation	Assigned as MCAST-TEST-NET, documentation and examples (Note that this is part of the above multicast space.)
240.0.0.0/4	240.0.0.0–255.255.255.254	268,435,455	Internet	Reserved for future use3232 (former Class E network)
255.255.255.255/32	255.255.255.255	1	Subnet	Reserved for the "limited Broadcast address

IPv4 Reserved Private Network Ranges

Name	CIDR block	Address range	Number of addresses	Classful description
24-bit block	10.0.0.0/8	10.0.0.0 – 10.255.255.255	16777216	Single Class A
20-bit block	172.16.0.0/12	172.16.0.0 – 172.31.255.255	1048576	Contiguous range of 16 Class B blocks
16-bit block	192.168.0.0/16	192.168.0.0 – 192.168.255.255	65536	Contiguous range of 256 Class C blocks

IPv6 Reserved IP Addresses

Address block (CIDR)	Range	Number of Addresses	Scope	Decsription
::/128	::	::	1	Software
::1/128	::1	::1	1	Host
::ffff:0:0/96	::ffff:0.0.0.0	::ffff:255.255.255.255	2³²	Software
::ffff:0:0:0/96	::ffff:0:0.0.0.0	::ffff:0:255.255.255.255	2³²	Software
64:ff9b::/96	64:ff9b::0.0.0.0	64:ff9b::255.255.255.255	2³²	Global Internet
64:ff9b:1::/48	64:ff9b:1::	64:ff9b:1:ffff:ffff:ffff:ffff:ffff	2⁸⁰, with 2⁴⁸ for each IPv4	Private internets
100::/64	100::	100::ffff:ffff:ffff:ffff	2⁶⁴	Routing
2001:0000::/32	2001::	2001::ffff:ffff:ffff:ffff:ffff:ffff	2⁹⁶	Global Internet
2001:20::/28	2001:20::	2001:2f:ffff:ffff:ffff:ffff:ffff:ffff	2¹⁰⁰	Software
2001:db8::/32	2001:db8::	2001:db8:ffff:ffff:ffff:ffff:ffff:ffff	2⁹⁶	Documentation
2002::/16	2002::	2002:ffff:ffff:ffff:ffff:ffff:ffff:ffff	2¹¹²	Global Internet
fc00::/7	fc00::	fdff:ffff:ffff:ffff:ffff:ffff:ffff:ffff	2¹²¹	Private internets
fe80::/64 from fe80::/10	fe80::	fe80::ffff:ffff:ffff:ffff	2⁶⁴	Link
ff00::/8	ff00::	ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff	2¹²⁰	Global Internet

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