Tom.be

Subnet
Calculator
Merger
Name

Subnet details 210.12.40.0/21

Network address 210.12.40.0
Prefix length 21 (255.255.248.0)
Range 210.12.40.0 - 210.12.47.255
Hexadecimal d20c2800
Binary 11010010 00001100 00101000 00000000
Binary subnet mask 11111111 11111111 11111000 00000000
Number of hosts 2,048
Parent subnet 210.12.32.0/20🔍
Previous subnet 210.12.32.0/21🔍
Next subnet 210.12.48.0/21🔍

Subnet tree

Netblock 210.0.0.0/8🔍 APNIC-AP (AU)
Netblock 210.12.0.0/15🔍 UNICOM-CN (CN)
Route 210.12.0.0/16🔍 AS4808 CHINA169-BJ China Unicom Beijing Province Network (CN)🔍
Netblock 210.12.32.0/19🔍 BJLLLSH-CN (CN)