Subnet details 81.181.0.0/21

Network address 81.181.0.0

Prefix length 21 (255.255.248.0)

Range 81.181.0.0 - 81.181.7.255

Hexadecimal 51b50000

Binary 01010001 10110101 00000000 00000000

Binary subnet mask 11111111 11111111 11111000 00000000

Number of hosts 2,048

Parent subnet 81.181.0.0/20🔍

Previous subnet 81.180.248.0/21🔍

Next subnet 81.181.8.0/21🔍

Subnet tree

Netblock 81.0.0.0/8🔍 RIPE-CIDR-BLOCK (AU)

Netblock 81.180.0.0/15🔍 RO-RNC-20030204 (RO)

Route 81.181.0.0/21🔍 AS3233 ICI-ROTLD National Institute for Research and Development in Informatics - ICI Bucharest (RO)🔍

Netblock 81.181.0.0/21🔍 ICI-NET-LOCAL (RO)