Tom.be

Subnet
Calculator
Merger
Name

Subnet details 81.91.64.0/20

Network address 81.91.64.0
Prefix length 20 (255.255.240.0)
Range 81.91.64.0 - 81.91.79.255
Hexadecimal 515b4000
Binary 01010001 01011011 01000000 00000000
Binary subnet mask 11111111 11111111 11110000 00000000
Number of hosts 4,096
Parent subnet 81.91.64.0/19🔍
Previous subnet 81.91.48.0/20🔍
Next subnet 81.91.80.0/20🔍

Subnet tree

Netblock 81.0.0.0/8🔍 RIPE-CIDR-BLOCK (AU)
Route 81.91.64.0/20🔍 AS8304 ECRITEL-FRANCE ISP and web hosting (FR)🔍
Netblock 81.91.64.0/20🔍 ECRCLOUD-EU-CUSTOMER-AGGR-03 (FR)