Network address
81.0.0.0
Prefix length
13 (255.248.0.0)
Range
81.0.0.0 - 81.7.255.255
Hexadecimal
51000000
Binary
01010001 00000000 00000000 00000000
Binary subnet mask
11111111 11111000 00000000 00000000
Number of hosts
524,288
Parent subnet
81.0.0.0/12🔍
Previous subnet
80.248.0.0/13🔍