IP lookup
Find the most-specific observed network and its origin AS numbers.
IP & ASN Network Explorer
Start with an address, network or AS number. Follow the observed routing evidence and keep registry ownership separate from the BGP origin.
Examples: 1.1.1.1 · AS13335 · example.com · FortiGate
ASN lookup
Inspect originated IPv4 and IPv6 prefixes and their observation sources.
Prefix lookup
Compare exact, covering and more-specific route observations.
Read the observation in context
A collector sees routes from its selected peers, not every network in the world. Multiple origins are shown separately. Snapshot time is not a real-time measurement, and a missing observation is not proof of global absence.
Sources & data freshness · DNS tools · Looking Glass
Look up addresses from a traceroute or IP list
Extract up to 100 unique IP addresses locally, review the list, then request local routing evidence. The pasted text stays in this page; only the reviewed addresses are sent to PJHTech.
No addresses have been sent.
Measure a connection
Ping · Traceroute · MTR