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Subnet details 203.81.0.0/21

Network address 203.81.0.0
Prefix length 21 (255.255.248.0)
Range 203.81.0.0 - 203.81.7.255
Hexadecimal cb510000
Binary 11001011 01010001 00000000 00000000
Binary subnet mask 11111111 11111111 11111000 00000000
Number of hosts 2,048
Parent subnet 203.81.0.0/20🔍
Previous subnet 203.80.248.0/21🔍
Next subnet 203.81.8.0/21🔍

Subnet tree

Netblock 203.0.0.0/8🔍 APNIC-AP (AU)
Route 203.81.0.0/21🔍 AS23764 CTGNet CTGNet (HK)🔍
Netblock 203.81.0.0/21🔍 CHINANET-FJ (CN)