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


 Illegal value for second NETMASK (.19)

Address:   192.168.0.1           1 1000000.10101000.00000000.00000001
Netmask:   128.0.0.0 = 1         1 0000000.00000000.00000000.00000000
Wildcard:  127.255.255.255       0 1111111.11111111.11111111.11111111
=>
Network:   128.0.0.0/1           1 0000000.00000000.00000000.00000000 (Class B)
Broadcast: 255.255.255.255       1 1111111.11111111.11111111.11111111
HostMin:   128.0.0.1             1 0000000.00000000.00000000.00000001
HostMax:   255.255.255.254       1 1111111.11111111.11111111.11111110
Hosts/Net: 2147483646            


Supernet

Netmask:   0.0.0.0 = 0           00000000.00000000.00000000.00000000
Wildcard:  255.255.255.255       11111111.11111111.11111111.11111111

Network:   0.0.0.0/0             00000000.00000000.00000000.00000000 (Class A)
Broadcast: 255.255.255.255       11111111.11111111.11111111.11111111
HostMin:   0.0.0.1               00000000.00000000.00000000.00000001
HostMax:   255.255.255.254       11111111.11111111.11111111.11111110
Hosts/Net: 4294967294

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.