{"classifier_version":"1.4.0","documentation":"https://rirtracker.com/api/","disclaimer":"This site independently analyzes publicly available Internet number-resource records. It is not affiliated with or endorsed by ARIN, the RIPE NCC, APNIC, LACNIC, AFRINIC, the Number Resource Organization (NRO), or any other 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":"143.189.0.0/16","resource_type":"ipv4","page":"https://rirtracker.com/ip/143.189.0.0-143.189.255.255/","statistics_now":{"registry":"APNIC","status":"allocated (dated 1990-10-01)"},"current_holder":{"rir":"APNIC","org":"Japan Network Information Center/So-net","how":"APNIC's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":124837,"date":"2016-10-26T04:35:23Z","type":"RESOURCE_TRANSFER","source_rir":"APNIC","recipient_rir":"APNIC","source_org":"THE WOOLMARK COMPANY PTY. LTD.","recipient_org":"Japan Network Information Center/So-net","range":"143.189.0.0/16","log":"APNIC"}],"events":[{"event_id":"65b4ad3def2f5563","registry":"APNIC","report_date":"2016-10-26","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"143.189.0.0/16","start":"143.189.0.0","end":"143.189.255.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-APNIC transfer","confidence":"CONFIRMED","source_rir":"APNIC","recipient_rir":"APNIC","source_organization":"THE WOOLMARK COMPANY PTY. LTD.","recipient_organization":"Japan Network Information Center/So-net","inventory_effect":"No effect on APNIC applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:46:33+00:00","page":"https://rirtracker.com/ip/143.189.0.0-143.189.255.255/#e-65b4ad3def2f5563","report_page":"https://rirtracker.com/apnic/reports/2016-10-26/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/143.189.0.0-143.189.255.255.json","observed":"Transfer: THE WOOLMARK COMPANY PTY. LTD. (APNIC) to Japan Network Information Center/So-net (APNIC)","explanation":"APNIC's transfer log records a transfer from THE WOOLMARK COMPANY PTY. LTD. (APNIC) to Japan Network Information Center/So-net (APNIC) on 2016-10-26 04:35 UTC. The registration changed hands; it is not a new allocation from APNIC.","evidence":[{"type":"transfer","url":"https://ftp.apnic.net/stats/apnic/transfers/transfers_latest.json","retrieved_at":"2026-10-13T18:17:16+00:00","summary":"Transfer log: RESOURCE_TRANSFER on 2016-10-26 04:35 UTC, THE WOOLMARK COMPANY PTY. LTD. (APNIC) to Japan Network Information Center/So-net (APNIC); resources moved: 143.189.0.0/16"},{"type":"delegated_before","url":"https://ftp.apnic.net/stats/apnic/2016/delegated-apnic-extended-20161026.gz","retrieved_at":"2026-10-12T21:50:08+00:00","summary":"APNIC delegated statistics 2016-10-26, before the change: allocated (dated 1990-10-01)"},{"type":"delegated_after","url":"https://ftp.apnic.net/stats/apnic/2016/delegated-apnic-extended-20161027.gz","retrieved_at":"2026-10-12T21:50:11+00:00","summary":"APNIC delegated statistics 2016-10-27, after the change: allocated (dated 1990-10-01)"}]}],"classification_history":{"65b4ad3def2f5563":[{"raw_change_id":34021,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T02:35:13+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from THE WOOLMARK COMPANY PTY. LTD. (APNIC) to Japan Network Information Center/So-net (APNIC) on 2016-10-26 04:35 UTC. The registration changed hands; it is not a new allocation from APNIC."},{"raw_change_id":34021,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:01:49+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from THE WOOLMARK COMPANY PTY. LTD. (APNIC) to Japan Network Information Center/So-net (APNIC) on 2016-10-26 04:35 UTC. The registration changed hands; it is not a new allocation from APNIC."},{"raw_change_id":34021,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:43:59+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from THE WOOLMARK COMPANY PTY. LTD. (APNIC) to Japan Network Information Center/So-net (APNIC) on 2016-10-26 04:35 UTC. The registration changed hands; it is not a new allocation from APNIC."},{"raw_change_id":34021,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:46:33+00:00","current":1,"public_explanation":"APNIC's transfer log records a transfer from THE WOOLMARK COMPANY PTY. LTD. (APNIC) to Japan Network Information Center/So-net (APNIC) on 2016-10-26 04:35 UTC. The registration changed hands; it is not a new allocation from APNIC."}]},"arin_statistics_now":{"status":"not listed"}}