Tom.be

Subnet
Calculator
Merger
Name

Subnet details 81.89.184.0/21

Network address 81.89.184.0
Prefix length 21 (255.255.248.0)
Range 81.89.184.0 - 81.89.191.255
Hexadecimal 5159b800
Binary 01010001 01011001 10111000 00000000
Binary subnet mask 11111111 11111111 11111000 00000000
Number of hosts 2,048
Parent subnet 81.89.176.0/20🔍
Previous subnet 81.89.176.0/21🔍
Next subnet 81.89.192.0/21🔍

Subnet tree

Netblock 81.0.0.0/8🔍 RIPE-CIDR-BLOCK (AU)
Route 81.89.176.0/20🔍 AS5495 ASN-SPBGU St Petersburg Russia (RU)🔍
Netblock 81.89.176.0/20🔍 RU-HQLGU-20060418 (RU)