Network address
81.21.64.0
Prefix length
18 (255.255.192.0)
Range
81.21.64.0 - 81.21.127.255
Hexadecimal
51154000
Binary
01010001 00010101 01000000 00000000
Binary subnet mask
11111111 11111111 11000000 00000000
Number of hosts
16,384
Parent subnet
81.21.0.0/17🔍
Previous subnet
81.21.0.0/18🔍
Next subnet
81.21.128.0/18🔍