Network Calculator

Show network, broadcast, first and last address for a given network:

IP/Netmask bits:         /     

Results

Usable addresses:
Mask:        
Network:         
First usable:       
Last usable:       
Broadcast:       

NOTE: The netmask in "bits format" is also known as mask in CIDR format (CIDR=Classless Inter-Domain Routing).