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Subnet details 81.51.120.0/21

Network address 81.51.120.0
Prefix length 21 (255.255.248.0)
Range 81.51.120.0 - 81.51.127.255
Hexadecimal 51337800
Binary 01010001 00110011 01111000 00000000
Binary subnet mask 11111111 11111111 11111000 00000000
Number of hosts 2,048
Parent subnet 81.51.112.0/20🔍
Previous subnet 81.51.112.0/21🔍
Next subnet 81.51.128.0/21🔍

Subnet tree

Netblock 81.0.0.0/8🔍 RIPE-CIDR-BLOCK (AU)
Netblock 81.48.0.0/13🔍 FR-TELECOM-20020325 (FR)
Route 81.48.0.0/14🔍 AS3215 AS3215 (FR)🔍
Netblock 81.51.120.0/21🔍 IP2000-ADSL-BAS (FR)