Subnet details 66.17.72.0/21

Network address 66.17.72.0
Prefix length 21 (255.255.248.0)
Range 66.17.72.0 - 66.17.79.255
Hexadecimal 42114800
Binary 01000010 00010001 01001000 00000000
Binary subnet mask 11111111 11111111 11111000 00000000
Number of hosts 2,048
Parent subnet 66.17.64.0/20🔍
Previous subnet 66.17.64.0/21🔍
Next subnet 66.17.80.0/21🔍

Subnet tree

Netblock 66.0.0.0/8🔍 ARIN-CIDR-BLOCK (AU)
Route 66.17.72.0/21🔍 AS8881 VERSATEL (DE)🔍