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Subnet details 81.21.100.0/24

Network address 81.21.100.0
Prefix length 24 (255.255.255.0)
Range 81.21.100.0 - 81.21.100.255
Hexadecimal 51156400
Binary 01010001 00010101 01100100 00000000
Binary subnet mask 11111111 11111111 11111111 00000000
Number of hosts 256
Parent subnet 81.21.100.0/23🔍
Previous subnet 81.21.99.0/24🔍
Next subnet 81.21.101.0/24🔍

Subnet tree

Netblock 81.0.0.0/8🔍 RIPE-CIDR-BLOCK (AU)
Netblock 81.21.96.0/20🔍 NON-RIPE-NCC-MANAGED-ADDRESS-BLOCK (EU # Country is really world wide)
Netblock 81.21.100.0/24🔍 i-Root_Anycast (EG)