Tom.be

Subnet
Calculator
Merger
Name

Subnet details 213.1.240.0/21

Network address 213.1.240.0
Prefix length 21 (255.255.248.0)
Range 213.1.240.0 - 213.1.247.255
Hexadecimal d501f000
Binary 11010101 00000001 11110000 00000000
Binary subnet mask 11111111 11111111 11111000 00000000
Number of hosts 2,048
Parent subnet 213.1.240.0/20🔍
Previous subnet 213.1.232.0/21🔍
Next subnet 213.1.248.0/21🔍

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 213.0.0.0/8🔍 RIPE-CIDR-BLOCK (AU)
Route 213.1.0.0/16🔍 AS2856 BT-UK-AS BTnet UK Regional network (GB)🔍
Netblock 213.1.0.0/16🔍 UK-BT-991111 (GB)
Netblock 213.1.128.0/17🔍 BT-INFRA (GB)