Free tool
BGP Hijack Detector
Recent possible BGP hijack events involving an ASN or prefix, with confidence scores, hijacker and victim networks.
About this tool
A BGP hijack happens when a network announces prefixes it does not own, or more-specific routes for someone else's space, diverting traffic. Events are scored by confidence based on RPKI, IRR data, historical origins and relationships.
Lookups are rate-limited and logged for abuse prevention. Results reflect public routing data and registries.