Network address
81.187.21.0
Prefix length
24 (255.255.255.0)
Range
81.187.21.0 - 81.187.21.255
Hexadecimal
51bb1500
Binary
01010001 10111011 00010101 00000000
Binary subnet mask
11111111 11111111 11111111 00000000
Number of hosts
256
Parent subnet
81.187.20.0/23🔍
Previous subnet
81.187.20.0/24🔍
Next subnet
81.187.22.0/24🔍