Tom.be

Subnet
Calculator
Merger
Name

Subnet details 137.189.8.0/21

Network address 137.189.8.0
Prefix length 21 (255.255.248.0)
Range 137.189.8.0 - 137.189.15.255
Hexadecimal 89bd0800
Binary 10001001 10111101 00001000 00000000
Binary subnet mask 11111111 11111111 11111000 00000000
Number of hosts 2,048
Parent subnet 137.189.0.0/20🔍
Previous subnet 137.189.0.0/21🔍
Next subnet 137.189.16.0/21🔍

Subnet tree

Route 137.189.0.0/16🔍 AS3661 ERX-CUHKNET The Chinese University of Hong Kong (HK)🔍
Netblock 137.189.0.0/16🔍 CUHKNET (HK)