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Subnet details 81.17.248.0/21

Network address 81.17.248.0
Prefix length 21 (255.255.248.0)
Range 81.17.248.0 - 81.17.255.255
Hexadecimal 5111f800
Binary 01010001 00010001 11111000 00000000
Binary subnet mask 11111111 11111111 11111000 00000000
Number of hosts 2,048
Parent subnet 81.17.240.0/20🔍
Previous subnet 81.17.240.0/21🔍
Next subnet 81.18.0.0/21🔍

Subnet tree

Netblock 81.0.0.0/8🔍 RIPE-CIDR-BLOCK (AU)
Route 81.17.240.0/20🔍 AS39122 BLACKNIGHT-AS (IE)🔍
Netblock 81.17.240.0/20🔍 IE-BLACKNIGHT-20051216 (IE)