{"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":"143.246.44.0/22","resource_type":"ipv4","page":"https://rirtracker.com/ip/143.246.44.0-143.246.47.255/","arin_statistics_now":{"file_date":"2026-10-09","status":"not listed"},"current_holder":{"rir":"APNIC","org":"Kamatera INC","how":"the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":45076,"date":"2026-08-10T11:23:50Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"APNIC","source_org":"Muskingum University","recipient_org":"Kamatera INC","range":"143.246.44.0/22"}],"events":[{"event_id":"9cdf79ba6da7a21b","report_date":"2026-08-09","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"ipv4","resource":"143.246.44.0/22","start":"143.246.44.0","end":"143.246.47.255","classification":"INTER_RIR_TRANSFER_OUT","classification_label":"Inter-RIR transfer out of ARIN","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"APNIC","source_organization":"Muskingum University","recipient_organization":"Kamatera INC","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":"2026-10-09T19:28:31+00:00","page":"https://rirtracker.com/ip/143.246.44.0-143.246.47.255/#e-9cdf79ba6da7a21b","evidence_url":"https://rirtracker.com/api/v1/events/9cdf79ba6da7a21b.json","piece_of":{"resource":"143.246.0.0/17","page":"https://rirtracker.com/ip/143.246.0.0-143.246.127.255/"},"explanation":"ARIN's transfer log records a transfer from Muskingum University (ARIN) to Kamatera INC (APNIC) on 2026-08-10 11:23 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-20260810","retrieved_at":"2026-10-09T19:05:53+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 143.246.44.0/22 allocated on 2026-08-09, not listed on 2026-08-10"},{"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 2026-08-10 11:23 UTC, Muskingum University (ARIN) to Kamatera INC (APNIC); resources moved: 143.246.44.0/22"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260808","retrieved_at":"2026-10-09T19:05:46+00:00","summary":"ARIN delegated statistics 2026-08-08 (produced 2026-08-08T13:00:20+00:00), before the report: allocated (dated 1990-10-26)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260810","retrieved_at":"2026-10-09T19:05:53+00:00","summary":"ARIN delegated statistics 2026-08-10 (produced 2026-08-10T13:00:21+00:00), after the report: not listed"}]}],"classification_history":{"9cdf79ba6da7a21b":[{"raw_change_id":7205,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.0.0","classified_at":"2026-10-09T19:28:31+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from Muskingum University (ARIN) to Kamatera INC (APNIC) on 2026-08-10 11:23 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."}]}}