network engineering / routing tools

Route/Aggregator

Summarize IPv4 prefixes into the smallest lossless set of CIDR blocks and compare them with a single covering supernet.

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Prefix input Route reduction Lossless aggregates Covering supernet

IPv4 · CIDR aggregation
Duplicates & overlaps
Exact route summaries
Covering supernet comparison

Enter IPv4 prefixes

Prefixes

One per line (commas and spaces work too). Bare IPs are treated as /32. Duplicates and covered prefixes are removed automatically.

ROUTE REDUCTION

→

Aggregated routes (lossless)

Single covering supernet (lossy)

Click any CIDR to copy it. Aggregation is exact — the output covers precisely the same addresses as the input.

NETWORK ENGINEERING / ROUTE AGGREGATOR