Tom.be

Subnet
Calculator
Merger
Name

Subnet details 121.239.136.0/21

Network address 121.239.136.0
Prefix length 21 (255.255.248.0)
Range 121.239.136.0 - 121.239.143.255
Hexadecimal 79ef8800
Binary 01111001 11101111 10001000 00000000
Binary subnet mask 11111111 11111111 11111000 00000000
Number of hosts 2,048
Parent subnet 121.239.128.0/20🔍
Previous subnet 121.239.128.0/21🔍
Next subnet 121.239.144.0/21🔍

Subnet tree

Netblock 121.0.0.0/8🔍 APNIC-AP (AU)
Route 121.224.0.0/12🔍 AS4134 CHINANET-BACKBONE No 31 Jin-rong Street (CN)🔍
Netblock 121.224.0.0/12🔍 CHINANET-JS (CN)