Tom.be

Subnet
Calculator
Merger
Name

Subnet details 81.181.231.128/25

Network address 81.181.231.128
Prefix length 25 (255.255.255.128)
Range 81.181.231.128 - 81.181.231.255
Hexadecimal 51b5e780
Binary 01010001 10110101 11100111 10000000
Binary subnet mask 11111111 11111111 11111111 10000000
Number of hosts 128
Parent subnet 81.181.231.0/24🔍
Previous subnet 81.181.231.0/25🔍
Next subnet 81.181.232.0/25🔍

Subnet tree

Netblock 81.0.0.0/8🔍 RIPE-CIDR-BLOCK (AU)
Netblock 81.180.0.0/15🔍 RO-RNC-20030204 (RO)
Route 81.181.224.0/21🔍 AS3233 ICI-ROTLD National Institute for Research and Development in Informatics - ICI Bucharest (RO)🔍
Netblock 81.181.224.0/21🔍 ICI-NET-LOCAL (RO)