Tom.be

Subnet
Calculator
Merger
Name

Subnet details 81.45.28.0/23

Network address 81.45.28.0
Prefix length 23 (255.255.254.0)
Range 81.45.28.0 - 81.45.29.255
Hexadecimal 512d1c00
Binary 01010001 00101101 00011100 00000000
Binary subnet mask 11111111 11111111 11111110 00000000
Number of hosts 512
Parent subnet 81.45.28.0/22🔍
Previous subnet 81.45.26.0/23🔍
Next subnet 81.45.30.0/23🔍

Subnet tree

Netblock 81.0.0.0/8🔍 RIPE-CIDR-BLOCK (AU)
Route 81.32.0.0/12🔍 AS3352 Telefonica de EspaNa (ES)🔍
Netblock 81.32.0.0/12🔍 ES-TELEFONICA-20020215 (ES)