Tom.be

Subnet
Calculator
Merger
Name

Subnet details 81.91.104.0/21

Network address 81.91.104.0
Prefix length 21 (255.255.248.0)
Range 81.91.104.0 - 81.91.111.255
Hexadecimal 515b6800
Binary 01010001 01011011 01101000 00000000
Binary subnet mask 11111111 11111111 11111000 00000000
Number of hosts 2,048
Parent subnet 81.91.96.0/20🔍
Previous subnet 81.91.96.0/21🔍
Next subnet 81.91.112.0/21🔍

Subnet tree

Netblock 81.0.0.0/8🔍 RIPE-CIDR-BLOCK (AU)
Route 81.91.104.0/21🔍 AS13101 TNG-AS TNG Stadtnetz GmbH (DE)🔍
Netblock 81.91.104.0/21🔍 DE-TREENENET-20020716 (DE)