Network address
81.91.40.0
Prefix length
23 (255.255.254.0)
Range
81.91.40.0 - 81.91.41.255
Hexadecimal
515b2800
Binary
01010001 01011011 00101000 00000000
Binary subnet mask
11111111 11111111 11111110 00000000
Number of hosts
512
Parent subnet
81.91.40.0/22🔍
Previous subnet
81.91.38.0/23🔍
Next subnet
81.91.42.0/23🔍