Tom.be

Subnet
Calculator
Merger
Name

Subnet details 121.255.104.0/21

Network address 121.255.104.0
Prefix length 21 (255.255.248.0)
Range 121.255.104.0 - 121.255.111.255
Hexadecimal 79ff6800
Binary 01111001 11111111 01101000 00000000
Binary subnet mask 11111111 11111111 11111000 00000000
Number of hosts 2,048
Parent subnet 121.255.96.0/20🔍
Previous subnet 121.255.96.0/21🔍
Next subnet 121.255.112.0/21🔍

Subnet tree

Netblock 121.0.0.0/8🔍 APNIC-AP (AU)
Route 121.255.0.0/16🔍 AS9808 CHINAMOBILE-CN China Mobile Communications Group Co Ltd (CN)🔍
Netblock 121.255.0.0/16🔍 SG-USTC (CN)