BGP Route Analyzer - Prefix, Origin AS & Real Paths
See how the internet routes any IP address: the announced prefix, the origin network (AS), RPKI origin validation, global visibility across RIPE's route collectors, and real AS paths observed in live BGP feeds.
What This Tool Shows
- Announced Prefix — the block of addresses your IP belongs to in the global routing table. Routers forward traffic per prefix, not per single IP.
- Origin AS — the autonomous system (network) that announces the prefix to the world: typically the ISP, cloud provider, or organization controlling those addresses.
- RPKI Validation — whether a published Route Origin Authorization (ROA) cryptographically permits that AS to announce that prefix. Valid is healthy; Invalid can indicate a misconfiguration or a route hijack; Unknown simply means no ROA has been published yet.
- Global Visibility — how many of RIPE's route collectors currently see the prefix. Healthy announcements reach nearly all peers; low visibility suggests a new, withdrawn, or regional route.
- AS Paths — real sequences of networks that BGP announcements traversed, read right-to-left: the rightmost AS originated the route, and each AS to its left passed it on.
Why BGP Routing Matters
BGP (Border Gateway Protocol) is the routing system of the internet: every network announces which addresses it controls, and every other network decides how to reach them. Misconfigurations and hijacks at this layer can silently redirect traffic for entire countries — which is why RPKI validation and route visibility are core health checks for network operators. For details about the owning network itself, use our ASN Lookup; to see where an IP sits geographically, try the IP Lookup.
Understanding This Tool
What It Does
Analyze BGP (Border Gateway Protocol) routing information and understand how your traffic is routed across the internet backbone. BGP is the protocol that determines the path packets take between autonomous systems.
Understanding the Results
- BGP Routes: Available routes to the destination
- AS Path: Autonomous systems packets traverse
- Next Hop: The immediate next router in the path
- Prefix: The IP range being routed
- Routing Origin: How the route was learned (IGP, EGP, or Incomplete - Incomplete is the most common in practice)
Common Use Cases
- Network Peering: Understand BGP relationships between networks
- Route Optimization: Identify optimal paths through the internet
- Redundancy Planning: Ensure multiple paths exist for failover
- BGP Hijacking Detection: Identify unauthorized route announcements
- Multi-ISP Configuration: Optimize routing for multi-homed networks
Pro Tips & Best Practices
- AS Numbers: Identify the autonomous systems in the path
- Route Preferences: BGP selects routes based on multiple criteria
- Monitoring: Track BGP routes to detect hijacking or anomalies
How this tool works: This tool runs in your browser and on our server in real time. Depending on the tool, results are computed directly from the input you provide or retrieved from live, authoritative data sources at the moment you run a lookup. We do not sell your data, and your lookups are kept private — any history shown here is stored only on your device.