Ipcalc/Sipcalc
Here’s a standard 24-bit, Class C network example using sipcalc.
sipcalc 192.168.1.0/24
-[ipv4 : 192.168.1.0/24] - 0
[CIDR]
Host address - 192.168.1.0
Host address (decimal) - 3232235776
Host address (hex) - C0A80100
Network address - 192.168.1.0
Network mask - 255.255.255.0
Network mask (bits) - 24
Network mask (hex) - FFFFFF00
Broadcast address - 192.168.1.255
Cisco wildcard - 0.0.0.255
Addresses in network - 256
Network range - 192.168.1.0 - 192.168.1.255
Usable range - 192.168.1.1 - 192.168.1.254
ipcalc
ipcalc 192.168.1.0
Address: 192.168.1.0 11000000.10101000.00000001. 00000000
Netmask: 255.255.255.0 = 24 11111111.11111111.11111111. 00000000
Wildcard: 0.0.0.255 00000000.00000000.00000000. 11111111
=>
Network: 192.168.1.0/24 11000000.10101000.00000001. 00000000
HostMin: 192.168.1.1 11000000.10101000.00000001. 00000001
HostMax: 192.168.1.254 11000000.10101000.00000001. 11111110
Broadcast: 192.168.1.255 11000000.10101000.00000001. 11111111
Hosts/Net: 254 Class C, Private Internet