{"asn":2501,"name":"UTnet","description":"The University of Tokyo","country":"JP","rir":"ARIN","prefix_v4":4,"prefix_v6":2,"updated_at":"2026-09-27T01:05:09.01976+03:00","upstreams":[{"asn":2907,"name":"JPNIC-2Byte-ASBLOCK-AP","country":"JP"}],"downstreams":null,"peers":null,"ixp_memberships":null}