Tom.be

Subnet
Calculator
Merger
Name

Subnet details 121.31.16.0/22

Network address 121.31.16.0
Prefix length 22 (255.255.252.0)
Range 121.31.16.0 - 121.31.19.255
Hexadecimal 791f1000
Binary 01111001 00011111 00010000 00000000
Binary subnet mask 11111111 11111111 11111100 00000000
Number of hosts 1,024
Parent subnet 121.31.16.0/21🔍
Previous subnet 121.31.12.0/22🔍
Next subnet 121.31.20.0/22🔍

Subnet tree

Netblock 112.0.0.0/4🔍 NON-RIPE-NCC-MANAGED-ADDRESS-BLOCK (EU # Country is really world wide)
Netblock 121.0.0.0/8🔍 APNIC-AP (AU)
Netblock 121.0.0.0/9🔍 NON-RIPE-NCC-MANAGED-ADDRESS-BLOCK (EU # Country is really world wide)
Route 121.16.0.0/12🔍 AS4837 CHINA169-Backbone CHINA UNICOM China169 Backbone (CN)🔍
Netblock 121.31.0.0/16🔍 UNICOM-GX (CN)