Tom.be

Subnet
Calculator
Merger
Name

Subnet details 123.58.240.0/21

Network address 123.58.240.0
Prefix length 21 (255.255.248.0)
Range 123.58.240.0 - 123.58.247.255
Hexadecimal 7b3af000
Binary 01111011 00111010 11110000 00000000
Binary subnet mask 11111111 11111111 11111000 00000000
Number of hosts 2,048
Parent subnet 123.58.240.0/20🔍
Previous subnet 123.58.232.0/21🔍
Next subnet 123.58.248.0/21🔍

Subnet tree

Netblock 122.0.0.0/7🔍 APNIC-AP (AU)
Route 123.58.240.0/20🔍 AS133119 UNICOM-CN China Unicom IP network (CN)🔍
Netblock 123.58.240.0/20🔍 CU-CDC (CN)