Free tool
BGP Looking Glass
Live BGP view of a prefix or IP from route collectors worldwide: AS paths, communities, peers and an interactive path graph.
About this tool
A BGP looking glass shows how the rest of the internet sees a prefix: which collectors and peers carry it, the AS paths they use, communities attached and when routes last changed. Use it to confirm a new announcement has propagated, debug traffic engineering or spot unexpected origins.
Lookups are rate-limited and logged for abuse prevention. Results reflect public routing data and registries.