CIDR Compare + Aggregator
Compare aligned networks and collapse mixed IPv4 and IPv6 prefix lists without losing precision.
Runs locally in your browser
CIDR A ↔ B
Compare networks
Both CIDRs must be exact network addresses.
Relationship
A∩B
The relationship between A and B will appear here.
CIDR Σ
Aggregate prefixes
One CIDR or individual IP per line. IPv4 and IPv6 may be mixed; any invalid line blocks the result.
Aggregated prefixes
Σ
The minimal prefix set will appear here.