Tom.be

Subnet
Calculator
Merger
Name

Subnet details 221.0.0.0/16

Network address 221.0.0.0
Prefix length 16 (255.255.0.0)
Range 221.0.0.0 - 221.0.255.255
Hexadecimal dd000000
Binary 11011101 00000000 00000000 00000000
Binary subnet mask 11111111 11111111 00000000 00000000
Number of hosts 65,536
Parent subnet 221.0.0.0/15🔍
Previous subnet 220.255.0.0/16🔍
Next subnet 221.1.0.0/16🔍

Subnet tree

Netblock 221.0.0.0/8🔍 APNIC-AP (AU)
Route 221.0.0.0/14🔍 AS4837 CHINA169-Backbone CHINA UNICOM China169 Backbone (CN)🔍
Netblock 221.0.0.0/15🔍 UNICOM-SD (CN)