{"asn":55390,"name":"TUSNET","description":"Tokyo University of Science","country":"JP","rir":"APNIC","prefix_v4":3,"prefix_v6":1,"updated_at":"2026-06-09T06:15:17.080504Z","upstreams":[{"asn":2907,"name":"JPNIC-2Byte-ASBLOCK-AP","country":"JP"}],"downstreams":null,"peers":null,"ixp_memberships":null}