Tom.be

Subnet
Calculator
Merger
Name

Subnet details 221.0.0.0/20

Network address 221.0.0.0
Prefix length 20 (255.255.240.0)
Range 221.0.0.0 - 221.0.15.255
Hexadecimal dd000000
Binary 11011101 00000000 00000000 00000000
Binary subnet mask 11111111 11111111 11110000 00000000
Number of hosts 4,096
Parent subnet 221.0.0.0/19🔍
Previous subnet 220.255.240.0/20🔍
Next subnet 221.0.16.0/20🔍

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)