CALCULATE / AGGREGATE0BPS / MODULE
IPV4 SUPERNET
Aggregate multiple IPv4 CIDRs into the smallest exact set and inspect the single supernet that contains them all. All prefix math stays in this browser.
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EXAMPLES
Exact aggregation never adds addresses. The single containing supernet can be broader than the input set when gaps exist between networks.
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RESULT / EXPLAINED
Exact address math, with operational claims kept separate.
The network-planning tools perform deterministic IPv4/IPv6 arithmetic locally. They describe address-space relationships, not whether a network is deployed correctly.
What is exact
Network boundaries, containment, ranges, prefix lengths, masks and exact aggregation/splitting results come from deterministic address arithmetic.
Canonical output
Normalized network values remove host bits where appropriate. Containment means one calculated address range fully includes another; overlap means ranges intersect.
No live network validation
The browser does not confirm routing tables, VLANs, DHCP, firewall rules, ownership, reachability or whether the calculated prefix is appropriate for your deployment.
Before deployment
Use the arithmetic result as a planning input, then verify it against the real network design, routing/firewall policy and authoritative address allocation.
0BPS SHOWS MEASURED OR CALCULATED FACTS SEPARATELY FROM INTERPRETATION. WHERE A RESULT IS ADVISORY, ESTIMATED OR DESTINATION-SPECIFIC, THE LIMIT IS STATED IN THE TOOL.
REFERENCE / FAQ
COMMON QUESTIONS
What is the difference between exact aggregation and a containing supernet?
Exact aggregation merges only CIDRs that can be combined without adding addresses. The containing supernet is one CIDR that covers every input network and may also cover extra addresses between them.
Does the planner modify or probe the networks?
No. It performs deterministic IPv4 prefix arithmetic locally in your browser and does not test reachability or routing.
How many CIDRs can I enter?
The interface accepts up to 64 non-empty IPv4 CIDR lines per calculation to keep the browser interaction bounded and easy to review.
Only sibling CIDRs that can be merged without covering extra addresses are collapsed into the exact output set.
The single containing supernet is useful for planning, but it can include addresses that were not present in the input list.
PRACTICAL / EXAMPLES
PUT THE NUMBER IN CONTEXT.
Short examples using the same units and assumptions as this module.
Two sibling /25 networks aggregate exactly to 10.0.0.0/24.
The smallest single containing supernet is broader than the exact input set because 10.0.1.0/24 lies between them.