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Subnet details 81.251.64.0/20

Network address 81.251.64.0
Prefix length 20 (255.255.240.0)
Range 81.251.64.0 - 81.251.79.255
Hexadecimal 51fb4000
Binary 01010001 11111011 01000000 00000000
Binary subnet mask 11111111 11111111 11110000 00000000
Number of hosts 4,096
Parent subnet 81.251.64.0/19🔍
Previous subnet 81.251.48.0/20🔍
Next subnet 81.251.80.0/20🔍

Subnet tree

Netblock 81.0.0.0/8🔍 RIPE-CIDR-BLOCK (AU)
Netblock 81.248.0.0/13🔍 FR-TELECOM-20030213 (FR)
Route 81.248.0.0/14🔍 AS3215 AS3215 (FR)🔍