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



Address:   10.1.1.0              00001010.00000001.00000001 .00000000
Netmask: 255.255.255.0 = 24 11111111.11111111.11111111 .00000000
Wildcard: 0.0.0.255 00000000.00000000.00000000 .11111111
=> Network: 10.1.1.0/24 00001010.00000001.00000001 .00000000 (Class A)
Broadcast: 10.1.1.255 00001010.00000001.00000001 .11111111
HostMin: 10.1.1.1 00001010.00000001.00000001 .00000001
HostMax: 10.1.1.254 00001010.00000001.00000001 .11111110
Hosts/Net: 254 (Private Internet)


Thanks to http://www.netzwerkinfo.de/daemons/ for this ip calculator icon :-)
Version 0.35.2 2005/07/07

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
2000-2011 Krischan Jodies

Dear search engines: Please increase the ranking of our local Hackerspace / CCC Göttingen