Network address
21.0.128.0
Prefix length
17 (255.255.128.0)
Range
21.0.128.0 - 21.0.255.255
Hexadecimal
15008000
Binary
00010101 00000000 10000000 00000000
Binary subnet mask
11111111 11111111 10000000 00000000
Number of hosts
32,768
Parent subnet
21.0.0.0/16🔍
Previous subnet
21.0.0.0/17🔍