Tom.be

Subnet
Calculator
Merger
Name

Subnet details 221.153.4.128/25

Network address 221.153.4.128
Prefix length 25 (255.255.255.128)
Range 221.153.4.128 - 221.153.4.255
Hexadecimal dd990480
Binary 11011101 10011001 00000100 10000000
Binary subnet mask 11111111 11111111 11111111 10000000
Number of hosts 128
Parent subnet 221.153.4.0/24🔍
Previous subnet 221.153.4.0/25🔍
Next subnet 221.153.5.0/25🔍

Subnet tree

Netblock 221.0.0.0/8🔍 APNIC-AP (AU)
Route 221.144.0.0/12🔍 AS4766 KIXS-AS-KR Korea Telecom (KR)🔍
Netblock 221.144.0.0/12🔍 KORNET (KR)