Діапазон підмереж

Диапазон адресов               Полная форма                 Краткая форма
192.168.0.1-192.168.0.254      192.168.0.0/255.255.255.0    192.168.0.0/24
192.168.20.1-192.168.20.254    192.168.20.0/255.255.255.0   192.168.20.0/24
192.168.0.1-192.168.254.254    192.168.20.0/255.255.0.0     192.168.20.0/16
10.0.0.1-10.254.254.254        10.0.0.0/255.0.0.0           10.0.0.0/8

Privat networks

RFC1918 name	IP address range	number of addresses	classful description	largest CIDR block (subnet mask)	host id size
24-bit block	10.0.0.0 – 10.255.255.255	16,777,216	single class A	10.0.0.0/8 (255.0.0.0)	24 bits
20-bit block	172.16.0.0 – 172.31.255.255	1,048,576	16 contiguous class B's	16 contiguous class B's	20 bits
16-bit block	192.168.0.0 – 192.168.255.255	65,536	256 contiguous class C's	192.168.0.0/16 (255.255.0.0)	16 bits

IP multicast

Range Start Address	Range End Address	Description
224.0.0.0	224.0.0.255	Reserved for special “well-known” multicast addresses.
224.0.1.0	238.255.255.255	Globally-scoped (Internet-wide) multicast addresses.
239.0.0.0	239.255.255.255	Administratively-scoped (local) multicast addresses.