Tom.be

Subnet
Calculator
Merger
Name

Subnet details 81.30.24.0/21

Network address 81.30.24.0
Prefix length 21 (255.255.248.0)
Range 81.30.24.0 - 81.30.31.255
Hexadecimal 511e1800
Binary 01010001 00011110 00011000 00000000
Binary subnet mask 11111111 11111111 11111000 00000000
Number of hosts 2,048
Parent subnet 81.30.16.0/20🔍
Previous subnet 81.30.16.0/21🔍
Next subnet 81.30.32.0/21🔍

Subnet tree

Netblock 81.0.0.0/8🔍 RIPE-CIDR-BLOCK (AU)
Route 81.30.16.0/20🔍 AS39657 Comeser-AS (IT)🔍
Netblock 81.30.16.0/20🔍 IT-COMESER-20060330 (IT)