Tom.be

Subnet
Calculator
Merger
Name

Subnet details 221.228.21.0/25

Network address 221.228.21.0
Prefix length 25 (255.255.255.128)
Range 221.228.21.0 - 221.228.21.127
Hexadecimal dde41500
Binary 11011101 11100100 00010101 00000000
Binary subnet mask 11111111 11111111 11111111 10000000
Number of hosts 128
Parent subnet 221.228.21.0/24🔍
Previous subnet 221.228.20.128/25🔍
Next subnet 221.228.21.128/25🔍

Subnet tree

Netblock 221.0.0.0/8🔍 APNIC-AP (AU)
Route 221.224.0.0/13🔍 AS4134 CHINANET-BACKBONE No 31 Jin-rong Street (CN)🔍
Netblock 221.224.0.0/13🔍 CHINANET-JS (CN)