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Smallest Covering IPv4 Supernet

Use this online smallest covering ipv4 supernet with pasted values. Covering block can include addresses absent from the input; use CIDR Aggregator for an exact union.

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  1. 01

    Add your input

    Choose a tool, enter values or select a file.

  2. 02

    Make it yours

    Adjust the options and run the action.

  3. 03

    Take the result

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ip supernet calculator online

Use smallest covering ipv4 supernet online to work with your own network values. Covering block can include addresses absent from the input; use CIDR Aggregator for an exact union.

How to use it

Select Try example, replace the JSON values using the same keys, and select Run tool. Review the output and scope notes before copying or downloading the result.

Options and example settings

OptionChoices / valueExample default
JSON key: cidrsUse the array/object shape shown in the example.["192.0.2.0/24","192.0.3.0/24"]

Calculation method

Find the common leading bits of the lowest and highest address

Worked examples

Worked case for smallest covering ipv4 supernet. Covering block can include addresses absent from the input; use CIDR Aggregator for an exact union.

Smallest Covering IPv4 Supernet — example with explicit inputs

Settings: No extra options

Input:

{
  "cidrs": [
    "192.0.2.0/24",
    "192.0.3.0/24"
  ]
}

Expected result for the example input and options:

Output:

{
  "supernet": "192.0.2.0/23",
  "may_include_additional_addresses": true
}

Limitations and common mistakes

  • Covering block can include addresses absent from the input; use CIDR Aggregator for an exact union.
  • Keep JSON property names and value types consistent with the example. Network tools do not perform live scans or remote lookups.

Frequently asked questions

How can I use ip supernet calculator online?

Select Try example, replace the JSON values using the same keys, and select Run tool. Review the output and scope notes before copying or downloading the result.

Which model does Smallest Covering IPv4 Supernet use?

Find the common leading bits of the lowest and highest address. Covering block can include addresses absent from the input; use CIDR Aggregator for an exact union.

Technical references

Where is my input processed?

The bundled tool processes input in your browser. It does not upload tool input to a conversion service. Other site plugins, analytics, advertising and browser extensions may have separate behavior.

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