usefulweb.site BGP Route Explorer

Internet infrastructure explorers

BGP Route Explorer

Who announces an IP or prefix in BGP: origin ASes, RPKI validity, visibility and origin changes.

Pasted mode: {resource?, prefixOverview, routingStatus?, routingHistory?, rpki?: [{origin, data}], lookingGlass?} — full RIPEstat responses or their "data" objects.

Try an example: Pasted RIPEstat data for 193.0.0.0/21 (RIPE NCC)

How it works

Looks up an IP address or prefix in RIPE RIS via the RIPEstat Data API: the covering announced prefix, origin AS(es) and holders, RPKI ROV state per origin, visibility among RIS full-feed peers, first/last seen, more-specifics announced by others, a timeline of origin changes and sample AS paths with upstreams.

  • prefix-overview: the announced prefix covering the input (aligned to the first less-specific if the exact one is not announced), origin AS(es) and holder names.
  • routing-status: visibility = RIS full-feed peers seeing the prefix ÷ all RIS full-feed peers of that address family; first/last seen; more- and less-specific announcements; IRR route objects.
  • routing-history: per origin and prefix, the periods RIS saw the announcement (routes seen by fewer than 10 full-feed peers are excluded by RIPEstat); start/stop events form the origin timeline. Covering prefixes (e.g. bogus /3 or /8 leaks) also appear and are marked as related.
  • rpki-validation: Routinator's ROV state for each origin AS + prefix (valid, invalid_asn, invalid_length, unknown = no covering ROA).
  • looking-glass (optional): current AS paths at RIS collectors; the AS immediately before the origin in each path is counted as an observed upstream.

For scripts and AI agents

  • JSON API: POST https://bgprouteexplorer.usefulweb.site/api/v1/calculate (same calculation as this page)
  • Interface description: OpenAPI 3.1 · AI guide: llms.txt
  • MCP server (Streamable HTTP): https://bgprouteexplorer.usefulweb.site/mcp · tool name bgp_route_explorer
Example request
curl -s -X POST https://bgprouteexplorer.usefulweb.site/api/v1/calculate \
  -H 'content-type: application/json' \
  -d '{…see OpenAPI examples…}'

Related tools

  • ASN Relationship Explorer – An autonomous system at a glance: holder, country, BGP neighbours and announced prefixes.
  • Global DNS Explorer – Ask every authoritative name server and public resolvers: records, propagation, DNSSEC, mistakes.
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