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Subnet details 81.66.0.0/16

Network address 81.66.0.0
Prefix length 16 (255.255.0.0)
Range 81.66.0.0 - 81.66.255.255
Hexadecimal 51420000
Binary 01010001 01000010 00000000 00000000
Binary subnet mask 11111111 11111111 00000000 00000000
Number of hosts 65,536
Parent subnet 81.66.0.0/15🔍
Previous subnet 81.65.0.0/16🔍
Next subnet 81.67.0.0/16🔍

Subnet tree

Netblock 81.0.0.0/8🔍 RIPE-CIDR-BLOCK (AU)
Route 81.64.0.0/14🔍 AS15557 LDCOMNET --- I3Dnet --- (FR)🔍
Netblock 81.64.0.0/14🔍 FR-SFR-20020103 (FR)