A worked-examples pack for decoding prefixes, finding ranges, and planning practical IPv4 subnets from real host requirements rather than memorised tables alone.
This pack is built around solved examples so you can see each boundary decision in context rather than jumping straight to the final answer.
Keep this pack for revision, interview practice, certification prep, and change-window checks where a manual subnetting sanity check is still valuable.
Work out the network address, broadcast address, host range, and mask details for an IPv4 network from the address and prefix you enter.
Use the Subnet Mask from CIDR Calculator to work out subnet mask from cidr for networking, storage, or systems planning.
Use the Wildcard Mask from CIDR Calculator to work out wildcard mask from cidr for networking, storage, or systems planning.