Private address space

From The Hive

Certain ranges of IP addresses are reserved for private use, and not generally routeable on the public internet without some form of network address translation.

Private

10.0.0.0 - 10.255.255.255 (/8)
172.16.0.0 - 172.31.255.255 (/12)
192.168.0.0/16 - 192.168.255.255 (/16)
100.64.0.0/10 - 100.127.255.255 (/10)
fd00:: - fdff:ffff:ffff:ffff:ffff:ffff:ffff:ffff (/8)

Link local

196.254.0.0 - 196.254.255.255 (/16)
fe80:: - feaf:ffff:ffff:ffff:ffff:ffff:ffff:ffff (/10)

Loopback

127.0.0.1
::1