IPv4 CIDR Aggregator

cidr merge online online

Use ipv4 cidr aggregator online to work with your own network values. Exact union only; never fills gaps between ranges. At most 4096 input entries and 4096 blocks per merged range.

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

Calculation method

Merge overlapping or adjacent integer ranges, then emit aligned power-of-two blocks

Worked examples

Worked case for ipv4 cidr aggregator. Exact union only; never fills gaps between ranges. At most 4096 input entries and 4096 blocks per merged range.

IPv4 CIDR Aggregator — example with explicit inputs

Settings: No extra options

Input:

{
  "cidrs": [
    "192.0.2.0/25",
    "192.0.2.128/25"
  ]
}

Expected result for the example input and options:

Output:

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

Limitations and common mistakes

• Exact union only; never fills gaps between ranges. At most 4096 input entries and 4096 blocks per merged range.
• 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 cidr merge online 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 IPv4 CIDR Aggregator use?

Merge overlapping or adjacent integer ranges, then emit aligned power-of-two blocks. Exact union only; never fills gaps between ranges. At most 4096 input entries and 4096 blocks per merged range.

Technical references

• IETF: CIDR address assignment and aggregation (RFC 4632)

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.

Useful next tools

• IPv4 Range to CIDR Blocks
• Equal Size IPv4 Subnet Splitter
• Smallest Covering IPv4 Supernet