Tom.be

Subnet
Calculator
Merger
Name

Subnet details 211.81.64.0/21

Network address 211.81.64.0
Prefix length 21 (255.255.248.0)
Range 211.81.64.0 - 211.81.71.255
Hexadecimal d3514000
Binary 11010011 01010001 01000000 00000000
Binary subnet mask 11111111 11111111 11111000 00000000
Number of hosts 2,048
Parent subnet 211.81.64.0/20🔍
Previous subnet 211.81.56.0/21🔍
Next subnet 211.81.72.0/21🔍

Subnet tree

Netblock 211.0.0.0/8🔍 APNIC-AP (AU)
Netblock 211.64.0.0/10🔍 CNNIC (CN)
Route 211.80.0.0/13🔍 AS4538 ERX-CERNET-BKB China Education and Research Network Center (CN)🔍
Netblock 211.80.0.0/14🔍 CERNET-CN (CN)