Tom.be

Subnet
Calculator
Merger
Name

Subnet details 81.17.16.0/21

Network address 81.17.16.0
Prefix length 21 (255.255.248.0)
Range 81.17.16.0 - 81.17.23.255
Hexadecimal 51111000
Binary 01010001 00010001 00010000 00000000
Binary subnet mask 11111111 11111111 11111000 00000000
Number of hosts 2,048
Parent subnet 81.17.16.0/20🔍
Previous subnet 81.17.8.0/21🔍
Next subnet 81.17.24.0/21🔍

Subnet tree

Netblock 81.0.0.0/8🔍 RIPE-CIDR-BLOCK (AU)
Route 81.17.16.0/20🔍 AS51852 PLI-AS (PA)🔍
Netblock 81.17.16.0/20🔍 PA-PRIVATELAYERCOM-20110829 (CH)