Tom.be

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Subnet details 121.30.248.0/21

Network address 121.30.248.0
Prefix length 21 (255.255.248.0)
Range 121.30.248.0 - 121.30.255.255
Hexadecimal 791ef800
Binary 01111001 00011110 11111000 00000000
Binary subnet mask 11111111 11111111 11111000 00000000
Number of hosts 2,048
Parent subnet 121.30.240.0/20🔍
Previous subnet 121.30.240.0/21🔍
Next subnet 121.31.0.0/21🔍

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 121.30.0.0/16🔍 UNICOM-SX (CN)