Tom.be

Subnet
Calculator
Merger
Name

Subnet details 221.129.56.0/21

Network address 221.129.56.0
Prefix length 21 (255.255.248.0)
Range 221.129.56.0 - 221.129.63.255
Hexadecimal dd813800
Binary 11011101 10000001 00111000 00000000
Binary subnet mask 11111111 11111111 11111000 00000000
Number of hosts 2,048
Parent subnet 221.129.48.0/20🔍
Previous subnet 221.129.48.0/21🔍
Next subnet 221.129.64.0/21🔍

Subnet tree

Netblock 221.0.0.0/8🔍 APNIC-AP (AU)
Route 221.129.0.0/16🔍 AS23841 TJBTN 6 F No 3 Huatian Road New Technology Industry Area (CN)🔍
Netblock 221.129.0.0/16🔍 TJBTN (CN)