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



Address:   121.0.10.137          01111001.00000000.00001010 .10001001
Netmask: 255.255.255.0 = 24 11111111.11111111.11111111 .00000000
Wildcard: 0.0.0.255 00000000.00000000.00000000 .11111111
=> Network: 121.0.10.0/24 01111001.00000000.00001010 .00000000 (Class A)
Broadcast: 121.0.10.255 01111001.00000000.00001010 .11111111
HostMin: 121.0.10.1 01111001.00000000.00001010 .00000001
HostMax: 121.0.10.254 01111001.00000000.00001010 .11111110
Hosts/Net: 254


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.