Tom.be

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Subnet details 81.90.80.0/21

Network address 81.90.80.0
Prefix length 21 (255.255.248.0)
Range 81.90.80.0 - 81.90.87.255
Hexadecimal 515a5000
Binary 01010001 01011010 01010000 00000000
Binary subnet mask 11111111 11111111 11111000 00000000
Number of hosts 2,048
Parent subnet 81.90.80.0/20🔍
Previous subnet 81.90.72.0/21🔍
Next subnet 81.90.88.0/21🔍

Subnet tree

Netblock 81.0.0.0/8🔍 RIPE-CIDR-BLOCK (AU)
Route 81.90.80.0/20🔍 AS29646 FFastFill-AS (GB)🔍
Netblock 81.90.80.0/20🔍 UK-FFASTFILL-20060419 (GB)