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


 Illegal value for NETMASK (0)

Address:   0.0.0.0               00000000.00000000.00000000.00000000
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
2000-2021 Krischan Jodies ipcalc202105 (a) jodies.de

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