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Subnet Splitter

Split a network into equal subnets. Pick current and new prefix, get full list.

4 subnets

  • 192.168.1.0/26
  • 192.168.1.64/26
  • 192.168.1.128/26
  • 192.168.1.192/26

How to read the result

Count = 2^(new − old). Each block sized 2^(32 − new). Capped at 1024 rows for browser sanity.

Example

192.168.1.0/24 → /26 → 4 × /26 subnets

FAQ

Equal sizes only?

Yes. For varied sizes use VLSM Calculator.

Why cap at 1024?

Larger splits (e.g. /0 → /24 = 16M rows) would freeze the page. Copy logic scales, UI does not.