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


 Corrected illegal netmask: 10.0.4.0

Address:   10.0.4.1              00001010 .00000000.00000100.00000001
Netmask: 255.0.0.0 = 8 11111111 .00000000.00000000.00000000
Wildcard: 0.255.255.255 00000000 .11111111.11111111.11111111
=> Network: 10.0.0.0/8 00001010 .00000000.00000000.00000000 (Class A)
Broadcast: 10.255.255.255 00001010 .11111111.11111111.11111111
HostMin: 10.0.0.1 00001010 .00000000.00000000.00000001
HostMax: 10.255.255.254 00001010 .11111111.11111111.11111110
Hosts/Net: 16777214 (Private Internet)

Supernet Netmask: 240.0.0.0 = 4 1111 0000.00000000.00000000.00000000
Wildcard: 15.255.255.255 0000 1111.11111111.11111111.11111111
Network: 0.0.0.0/4 0000 0000.00000000.00000000.00000000 (Class A)
Broadcast: 15.255.255.255 0000 1111.11111111.11111111.11111111
HostMin: 0.0.0.1 0000 0000.00000000.00000000.00000001
HostMax: 15.255.255.254 0000 1111.11111111.11111111.11111110
Hosts/Net: 268435454


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

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