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Subnet details 123.57.40.0/21

Network address 123.57.40.0
Prefix length 21 (255.255.248.0)
Range 123.57.40.0 - 123.57.47.255
Hexadecimal 7b392800
Binary 01111011 00111001 00101000 00000000
Binary subnet mask 11111111 11111111 11111000 00000000
Number of hosts 2,048
Parent subnet 123.57.32.0/20🔍
Previous subnet 123.57.32.0/21🔍
Next subnet 123.57.48.0/21🔍

Subnet tree

Netblock 122.0.0.0/7🔍 APNIC-AP (AU)
Route 123.56.0.0/15🔍 AS45102 ALIBABA-CN-NET Alibaba US Technology Co Ltd (US)🔍
Netblock 123.56.0.0/15🔍 ALISOFT (CN)