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Subnet details 123.131.128.0/21

Network address 123.131.128.0
Prefix length 21 (255.255.248.0)
Range 123.131.128.0 - 123.131.135.255
Hexadecimal 7b838000
Binary 01111011 10000011 10000000 00000000
Binary subnet mask 11111111 11111111 11111000 00000000
Number of hosts 2,048
Parent subnet 123.131.128.0/20🔍
Previous subnet 123.131.120.0/21🔍
Next subnet 123.131.136.0/21🔍

Subnet tree

Netblock 122.0.0.0/7🔍 APNIC-AP (AU)
Route 123.128.0.0/13🔍 AS4837 CHINA169-Backbone CHINA UNICOM China169 Backbone (CN)🔍
Netblock 123.128.0.0/13🔍 UNICOM-SD (CN)