192.0.2.0/24

192.0.2.0/24 (TEST-NET-1) is reserved for documentation and examples; it never appears on the real internet.

Last updated 2 Nov 2026 from the IANA IPv4 Special-Purpose Address Registry

Short answer

Block	192.0.2.0/24
First – last	192.0.2.0 – 192.0.2.255
Size	256 addresses
Name in the registry	Documentation (TEST-NET-1)
Defined in	RFC 5737
Allocated	2010-01
Valid as source / destination	False / False
Forwardable	False
Globally reachable	False

What it means

RFC 5737 reserves three /24 blocks for documentation: 192.0.2.0/24, 198.51.100.0/24 and 203.0.113.0/24. Manuals and tutorials use them so that an example never points at a real network. peekip uses them for every example on this site.

Traffic to these addresses should be dropped by every network.

Want the address websites actually see for you? Open the Truth Check.

Sources

IANA IPv4 Special-Purpose Address Registry (CC0) · checked 2 Nov 2026
RFC 5737