How to use this tool
ASN Routing Profile: interpretation and next steps
ASN Routing Profile summarizes publicly visible prefix scale, address space, and RIS-observed neighbours for an ASN. It is useful for establishing a baseline before peering, migration, or monitoring work.
What this check answers
Observed neighbours are derived from BGP paths and do not prove a commercial relationship. Counts can also be influenced by route collectors and visibility, so use them as operational evidence rather than a business directory.
Workflow
- Enter an ASN.
- Review IPv4/IPv6 prefix scale and unique observed neighbour counts.
- Inspect the announced-prefix inventory and validate selected prefixes with RPKI and IRR.
Example and limits
A sudden change in announced prefix count or neighbour composition can identify a routing change worth investigating.
- Public BGP does not expose every private or backup session.
- Prefix count is not a measure of traffic volume or network quality.
Frequently asked questions
Are all neighbours real peers?
They are observed AS-path neighbours, not necessarily bilateral commercial peers.
Why is the list large?
RIS sees paths across many collectors and can include uncertain relationships.
How often is it updated?
The source is cached briefly; use the query timestamp in the response.