Tom.be

Subnet
Calculator
Merger
Name

Subnet details 217.28.144.0/21

Network address 217.28.144.0
Prefix length 21 (255.255.248.0)
Range 217.28.144.0 - 217.28.151.255
Hexadecimal d91c9000
Binary 11011001 00011100 10010000 00000000
Binary subnet mask 11111111 11111111 11111000 00000000
Number of hosts 2,048
Parent subnet 217.28.144.0/20🔍
Previous subnet 217.28.136.0/21🔍
Next subnet 217.28.152.0/21🔍

Subnet tree

Netblock 192.0.0.0/2🔍 NON-RIPE-NCC-MANAGED-ADDRESS-BLOCK (EU # Country is really world wide)
Netblock 192.0.0.0/3🔍 NON-RIPE-NCC-MANAGED-ADDRESS-BLOCK (EU # Country is really world wide)
Netblock 216.0.0.0/6🔍 NON-RIPE-NCC-MANAGED-ADDRESS-BLOCK (EU # Country is really world wide)
Netblock 217.0.0.0/8🔍 RIPE-CIDR-BLOCK (AU)
Route 217.28.144.0/20🔍 AS12741 AS-NETIA Warszawa 02-822 (PL)🔍
Netblock 217.28.144.0/20🔍 PL-PETROTEL-20030508 (PL)