{"classifier_version":"1.0.0","generated":"2026-10-09T21:19:22+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 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":"204.75.18.0/23","resource_type":"ipv4","page":"https://rirtracker.com/ip/204.75.18.0-204.75.19.255/","arin_statistics_now":{"file_date":"2026-10-09","status":"not listed"},"current_holder":{"rir":"APNIC","org":"Fastmail Pty Ltd","how":"the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":43689,"date":"2026-04-27T22:05:02Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"APNIC","source_org":"Data Device Corporation","recipient_org":"Fastmail Pty Ltd","range":"204.75.18.0/23"}],"events":[{"event_id":"0ce2214b24c4fa3a","report_date":"2026-04-27","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"ipv4","resource":"204.75.18.0/23","start":"204.75.18.0","end":"204.75.19.255","classification":"INTER_RIR_TRANSFER_OUT","classification_label":"Inter-RIR transfer out of ARIN","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"APNIC","source_organization":"Data Device Corporation","recipient_organization":"Fastmail Pty Ltd","inventory_effect":"Transferred out of ARIN administration; not offered to ARIN applicants","inventory_effect_code":"TRANSFER_OUT","provisional":false,"classifier_version":"1.0.0","classified_at":"2026-10-09T19:28:29+00:00","page":"https://rirtracker.com/ip/204.75.18.0-204.75.19.255/#e-0ce2214b24c4fa3a","evidence_url":"https://rirtracker.com/api/v1/events/0ce2214b24c4fa3a.json","piece_of":{"resource":"204.75.16.0/20","page":"https://rirtracker.com/ip/204.75.16.0-204.75.31.255/"},"explanation":"ARIN's transfer log records a transfer from Data Device Corporation (ARIN) to Fastmail Pty Ltd (APNIC) on 2026-04-27 22:05 UTC: it left ARIN for APNIC. ARIN-Issued didn't list this change; it is not a new allocation and is not offered to ARIN applicants.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260428","retrieved_at":"2026-10-09T19:00:34+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 204.75.18.0/23 allocated on 2026-04-27, not listed on 2026-04-28"},{"type":"transfer","url":"https://ftp.arin.net/pub/stats/arin/transfers/transfers_latest.json","retrieved_at":"2026-10-09T18:54:15+00:00","summary":"Transfer log: RESOURCE_TRANSFER on 2026-04-27 22:05 UTC, Data Device Corporation (ARIN) to Fastmail Pty Ltd (APNIC); resources moved: 204.75.18.0/23"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260426","retrieved_at":"2026-10-09T19:00:28+00:00","summary":"ARIN delegated statistics 2026-04-26 (produced 2026-04-26T13:00:38+00:00), before the report: allocated (dated 1994-06-23)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260428","retrieved_at":"2026-10-09T19:00:34+00:00","summary":"ARIN delegated statistics 2026-04-28 (produced 2026-04-28T13:00:39+00:00), after the report: not listed"}]}],"classification_history":{"0ce2214b24c4fa3a":[{"raw_change_id":6458,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.0.0","classified_at":"2026-10-09T19:28:29+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from Data Device Corporation (ARIN) to Fastmail Pty Ltd (APNIC) on 2026-04-27 22:05 UTC: it left ARIN for APNIC. ARIN-Issued didn't list this change; it is not a new allocation and is not offered to ARIN applicants."}]}}