ipinfo_asn
Get autonomous system (network ownership) information for IP addresses.
By default uses the free lite API which returns ASN, name, and domain. Set detailed=True to use the paid lookup API which also includes the network type (e.g. isp, hosting, business, education).
Results are paginated.
Results are cached in memory for the session, so repeat lookups of the same IP are served from cache without consuming API quota. You do not need to maintain your own cache or deduplicate IPs before calling this tool. The _meta field reports api_calls_made and from_cache counts.