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



Address:   10.147.223.0          00001010.10010011.11011111 .00000000
Netmask: 255.255.255.0 = 24 11111111.11111111.11111111 .00000000
Wildcard: 0.0.0.255 00000000.00000000.00000000 .11111111
=> Network: 10.147.223.0/24 00001010.10010011.11011111 .00000000 (Class A)
Broadcast: 10.147.223.255 00001010.10010011.11011111 .11111111
HostMin: 10.147.223.1 00001010.10010011.11011111 .00000001
HostMax: 10.147.223.254 00001010.10010011.11011111 .11111110
Hosts/Net: 254 (Private Internet)

Subnets Netmask: 255.255.255.192 = 26 11111111.11111111.11111111.11 000000
Wildcard: 0.0.0.63 00000000.00000000.00000000.00 111111
Network: 10.147.223.0/26 00001010.10010011.11011111.00 000000 (Class A)
Broadcast: 10.147.223.63 00001010.10010011.11011111.00 111111
HostMin: 10.147.223.1 00001010.10010011.11011111.00 000001
HostMax: 10.147.223.62 00001010.10010011.11011111.00 111110
Hosts/Net: 62 (Private Internet)

Network: 10.147.223.64/26 00001010.10010011.11011111.01 000000 (Class A)
Broadcast: 10.147.223.127 00001010.10010011.11011111.01 111111
HostMin: 10.147.223.65 00001010.10010011.11011111.01 000001
HostMax: 10.147.223.126 00001010.10010011.11011111.01 111110
Hosts/Net: 62 (Private Internet)

Network: 10.147.223.128/26 00001010.10010011.11011111.10 000000 (Class A)
Broadcast: 10.147.223.191 00001010.10010011.11011111.10 111111
HostMin: 10.147.223.129 00001010.10010011.11011111.10 000001
HostMax: 10.147.223.190 00001010.10010011.11011111.10 111110
Hosts/Net: 62 (Private Internet)

Network: 10.147.223.192/26 00001010.10010011.11011111.11 000000 (Class A)
Broadcast: 10.147.223.255 00001010.10010011.11011111.11 111111
HostMin: 10.147.223.193 00001010.10010011.11011111.11 000001
HostMax: 10.147.223.254 00001010.10010011.11011111.11 111110
Hosts/Net: 62 (Private Internet)

Subnets: 4
Hosts: 248

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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