Network address
21.0.0.0
Prefix length
12 (255.240.0.0)
Range
21.0.0.0 - 21.15.255.255
Hexadecimal
15000000
Binary
00010101 00000000 00000000 00000000
Binary subnet mask
11111111 11110000 00000000 00000000
Number of hosts
1,048,576
Parent subnet
21.0.0.0/11🔍
Previous subnet
20.240.0.0/12🔍
Next subnet
21.16.0.0/12🔍