\ˈsī-dər\, \ˈsi-dər\, \ˈsē-dər\    This calculator is for calculating Internet Protocol version 4 (IPv4) address spaces using Classless Inter-Domain Routing (CIDR) notation. Type in an IP address with a netmask to calculate the size of the address space and to generate blog text to match. For example, type in "128.168.0.0/28" or "1.2.3.4/5"

Your input:

Legend:
    Bits that define the network for the outside world.
    Bits left for the network's own address space.