Network address
81.64.0.0
Prefix length
12 (255.240.0.0)
Range
81.64.0.0 - 81.79.255.255
Hexadecimal
51400000
Binary
01010001 01000000 00000000 00000000
Binary subnet mask
11111111 11110000 00000000 00000000
Number of hosts
1,048,576
Parent subnet
81.64.0.0/11🔍
Previous subnet
81.48.0.0/12🔍
Next subnet
81.80.0.0/12🔍