Network address
21.0.0.0
Prefix length
8
Range
21.0.0.0 - 21.255.255.255
Hexadecimal
15000000
Binary
00010101 00000000 00000000 00000000
Binary subnet mask
11111111 00000000 00000000 00000000
Number of hosts
16,777,216
Parent subnet
20.0.0.0/7🔍
Previous subnet
20.0.0.0/8🔍