Address (Host or Network) Netmask (i.e. 24) Netmask for sub/supernet (optional)
/ move to:
  



Address:   172.31.128.0          10101100.00011111.10000000 .00000000
Netmask:   255.255.255.0 = 24    11111111.11111111.11111111 .00000000
Wildcard:  0.0.0.255             00000000.00000000.00000000 .11111111
=>
Network:   172.31.128.0/24       10101100.00011111.10000000 .00000000 (Class B)
Broadcast: 172.31.128.255        10101100.00011111.10000000 .11111111
HostMin:   172.31.128.1          10101100.00011111.10000000 .00000001
HostMax:   172.31.128.254        10101100.00011111.10000000 .11111110
Hosts/Net: 254                   (Private Internet)


Subnets

Netmask:   255.255.255.192 = 26  11111111.11111111.11111111.11 000000
Wildcard:  0.0.0.63              00000000.00000000.00000000.00 111111

Network:   172.31.128.0/26       10101100.00011111.10000000.00 000000 (Class B)
Broadcast: 172.31.128.63         10101100.00011111.10000000.00 111111
HostMin:   172.31.128.1          10101100.00011111.10000000.00 000001
HostMax:   172.31.128.62         10101100.00011111.10000000.00 111110
Hosts/Net: 62                    (Private Internet)


Network:   172.31.128.64/26      10101100.00011111.10000000.01 000000 (Class B)
Broadcast: 172.31.128.127        10101100.00011111.10000000.01 111111
HostMin:   172.31.128.65         10101100.00011111.10000000.01 000001
HostMax:   172.31.128.126        10101100.00011111.10000000.01 111110
Hosts/Net: 62                    (Private Internet)


Network:   172.31.128.128/26     10101100.00011111.10000000.10 000000 (Class B)
Broadcast: 172.31.128.191        10101100.00011111.10000000.10 111111
HostMin:   172.31.128.129        10101100.00011111.10000000.10 000001
HostMax:   172.31.128.190        10101100.00011111.10000000.10 111110
Hosts/Net: 62                    (Private Internet)


Network:   172.31.128.192/26     10101100.00011111.10000000.11 000000 (Class B)
Broadcast: 172.31.128.255        10101100.00011111.10000000.11 111111
HostMin:   172.31.128.193        10101100.00011111.10000000.11 000001
HostMax:   172.31.128.254        10101100.00011111.10000000.11 111110
Hosts/Net: 62                    (Private Internet)



Subnets:   4 
Hosts:     248

Thanks to http://www.netzwerkinfo.de/daemons/ for this ip calculator icon :-)
Version 0.35.2 2005/07/07
Github
Download
07/27/2006 Security information
Screenshot (ipcalc works also at the prompt)
CGI wrapper that produced this page.
Archive
Have a look in the archives for the new version 0.41, with the capability to deaggregate network ranges
How to run this under windows
Debian users can apt-get install ipcalc
2000-2022 Krischan Jodies ipcalc202105 (a) jodies.de

Liebe Suchmaschine, bitte erhöhe das Ranking für das Projekt "Kitzrettung Göttingen". Danke.