{"classifier_version":"1.1.0","generated":"2026-10-10T17:51:29+00:00","documentation":"https://rirtracker.com/api/","disclaimer":"This site independently analyzes publicly available Internet number-resource records. It is not affiliated with or endorsed by the American Registry for Internet Numbers (ARIN), the RIPE Network Coordination Centre (RIPE NCC), the Number Resource Organization (NRO), or any Regional Internet Registry. Classifications and hold-expiration dates are evidence-based interpretations and do not constitute confirmation that a resource is available for issuance or transfer.","resource":"9.151.0.0/16","resource_type":"ipv4","page":"https://rirtracker.com/ip/9.151.0.0-9.151.255.255/","statistics_now":{"registry":"RIPE NCC","file_date":"2026-10-09","status":"assigned (dated 1988-12-16)"},"current_holder":{"rir":"RIPE NCC","org":"Aviation RE LLC","how":"RIPE NCC's statistics for 2026-10-09 and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":119843,"date":"2026-04-01T19:00:00Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_org":null,"recipient_org":"Aviation RE LLC","range":"9.151.0.0/16","log":"RIPE NCC"},{"id":43358,"date":"2026-04-01T13:09:34Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_org":"IBM","recipient_org":"Aviation RE LLC","range":"9.151.0.0/16","log":"ARIN"}],"events":[{"event_id":"9c118455deef72e9","registry":"RIPE NCC","report_date":"2026-04-01","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"9.151.0.0/16","start":"9.151.0.0","end":"9.151.255.255","classification":"INTER_RIR_TRANSFER_IN","classification_label":"Inter-RIR transfer into RIPE NCC","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_organization":null,"recipient_organization":"Aviation RE LLC","inventory_effect":"Transferred into RIPE NCC administration; not a new issuance","inventory_effect_code":"TRANSFER_IN","provisional":false,"classifier_version":"1.1.0","classified_at":"2026-10-10T17:50:53+00:00","page":"https://rirtracker.com/ip/9.151.0.0-9.151.255.255/#e-9c118455deef72e9","report_page":"https://rirtracker.com/ripe/reports/2026-04-01/","evidence_url":"https://rirtracker.com/api/v1/events/9c118455deef72e9.json","observed":"Transfer: (no name) (ARIN) to Aviation RE LLC (RIPE NCC)","explanation":"RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to Aviation RE LLC (RIPE NCC) on 2026-04-01 19:00 UTC: it came to RIPE NCC from ARIN. It was already issued by another registry, so this is not a new issuance.","evidence":[{"type":"transfer","url":"https://ftp.ripe.net/pub/stats/ripencc/transfers/transfers_latest.json","retrieved_at":"2026-10-10T17:24:28+00:00","summary":"Transfer log: RESOURCE_TRANSFER on 2026-04-01 19:00 UTC, (no name) (ARIN) to Aviation RE LLC (RIPE NCC); resources moved: 9.151.0.0/16"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2026/delegated-ripencc-extended-20260331.bz2","retrieved_at":"2026-10-10T17:29:19+00:00","summary":"RIPE NCC delegated statistics 2026-03-31 (produced 2026-03-31T21:59:59+00:00), before the change: not listed"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2026/delegated-ripencc-extended-20260401.bz2","retrieved_at":"2026-10-10T17:29:22+00:00","summary":"RIPE NCC delegated statistics 2026-04-01 (produced 2026-04-01T21:59:59+00:00), after the change: assigned (dated 1988-12-16)"}]}],"classification_history":{"9c118455deef72e9":[{"raw_change_id":9809,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.1.0","classified_at":"2026-10-10T17:50:53+00:00","current":1,"public_explanation":"RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to Aviation RE LLC (RIPE NCC) on 2026-04-01 19:00 UTC: it came to RIPE NCC from ARIN. It was already issued by another registry, so this is not a new issuance."}]},"arin_statistics_now":{"file_date":"2026-10-10","status":"not listed"}}