Tom.be

Subnet
Calculator
Merger
Name

Subnet details 81.18.104.0/21

Network address 81.18.104.0
Prefix length 21 (255.255.248.0)
Range 81.18.104.0 - 81.18.111.255
Hexadecimal 51126800
Binary 01010001 00010010 01101000 00000000
Binary subnet mask 11111111 11111111 11111000 00000000
Number of hosts 2,048
Parent subnet 81.18.96.0/20🔍
Previous subnet 81.18.96.0/21🔍
Next subnet 81.18.112.0/21🔍

Subnet tree

Netblock 81.0.0.0/8🔍 RIPE-CIDR-BLOCK (AU)
Route 81.18.96.0/20🔍 AS24657 Dokumenta-AS1 Langenhorner Chaussee 555 (DE)🔍
Netblock 81.18.96.0/20🔍 DE-HAMBURG-20020117 (DE)