Every address accounted for.

Enter a network and host counts. Get valid CIDR blocks, free space, and exports.

192.168.10.0/24valid
Engineering62 hosts · /26
Guest Wi-Fi40 hosts · /26
2subnets
128allocated
128free

Host counts in. CIDR blocks out.

  1. 01InputParent range and required hosts.
  2. 02AllocateSmallest fitting blocks, largest first.
  3. 03UseCopy, export, or save.
10.30.0.0/23512 addresses
Staff
/25
Guest
/26
Voice
/26
IoT
/27
224 free
Staff10.30.0.0/25126 usable
Guest10.30.0.128/2662 usable
Voice10.30.0.192/2662 usable
IoT10.30.1.0/2730 usable

Start with 192.168.1.0/24.

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