Network address
81.91.16.0
Prefix length
21 (255.255.248.0)
Range
81.91.16.0 - 81.91.23.255
Hexadecimal
515b1000
Binary
01010001 01011011 00010000 00000000
Binary subnet mask
11111111 11111111 11111000 00000000
Number of hosts
2,048
Parent subnet
81.91.16.0/20🔍
Previous subnet
81.91.8.0/21🔍
Next subnet
81.91.24.0/21🔍