// Tool
AS-SET Resolver
Resolve an AS-SET (or AS-macro) into its member ASNs via NLNOG's irrexplorer.nlnog.net API, which queries every public IRR (RADb, ARIN, RIPE, APNIC, ALTDB, etc.) in parallel. Each ASN is then enriched with org info from PeeringDB.
Accepts AS-SET names (must start with
AS-). For a plain ASN, use the BGP Looking Glass. Try:
