LESS GUESSWORK. BETTER NETWORKS.
Every address.
In its place.
A clearer view of your network. Calculate an IPv4 subnet,
then make room for everything that connects.
Subnet calculator
IPv4NETWORK / CIDR
usable addresses
total addresses
/31 uses two point-to-point endpoints. /32 identifies a single host. Other prefixes exclude network and broadcast addresses from usable counts. Special-purpose address restrictions still apply.
PLAN YOUR ADDRESS SPACE
VLSM subnet planner
Give each network the space it needs. Enter host counts and we’ll allocate the smallest subnets that fit.
| Subnet | Network / CIDR | Requested | Usable | Host range |
|---|