{"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":"160.4.0.0/16","resource_type":"ipv4","page":"https://rirtracker.com/ip/160.4.0.0-160.4.255.255/","statistics_now":{"registry":"APNIC","status":"allocated (dated 1992-04-16)"},"current_holder":{"rir":"APNIC","org":"Microsoft Operations PTE Ltd","how":"APNIC's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":128568,"date":"2023-05-23T04:19:32Z","type":"RESOURCE_TRANSFER","source_rir":"APNIC","recipient_rir":"APNIC","source_org":"AgResearch","recipient_org":"Microsoft Operations PTE Ltd","range":"160.4.0.0/16","log":"APNIC"}],"events":[{"event_id":"33892ef54a0ce37b","registry":"APNIC","report_date":"2023-05-23","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"160.4.0.0/16","start":"160.4.0.0","end":"160.4.255.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-APNIC transfer","confidence":"CONFIRMED","source_rir":"APNIC","recipient_rir":"APNIC","source_organization":"AgResearch","recipient_organization":"Microsoft Operations PTE Ltd","inventory_effect":"No effect on APNIC applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:46:47+00:00","page":"https://rirtracker.com/ip/160.4.0.0-160.4.255.255/#e-33892ef54a0ce37b","report_page":"https://rirtracker.com/apnic/reports/2023-05-23/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/160.4.0.0-160.4.255.255.json","observed":"Transfer: AgResearch (APNIC) to Microsoft Operations PTE Ltd (APNIC)","explanation":"APNIC's transfer log records a transfer from AgResearch (APNIC) to Microsoft Operations PTE Ltd (APNIC) on 2023-05-23 04:19 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 2023-05-23 04:19 UTC, AgResearch (APNIC) to Microsoft Operations PTE Ltd (APNIC); resources moved: 160.4.0.0/16, 192.146.133.0/24, 192.153.251.0/24"},{"type":"delegated_before","url":"https://ftp.apnic.net/stats/apnic/2023/delegated-apnic-extended-20230523.gz","retrieved_at":"2026-10-13T00:40:34+00:00","summary":"APNIC delegated statistics 2023-05-23, before the change: allocated (dated 1992-04-16)"},{"type":"delegated_after","url":"https://ftp.apnic.net/stats/apnic/2023/delegated-apnic-extended-20230524.gz","retrieved_at":"2026-10-13T00:40:49+00:00","summary":"APNIC delegated statistics 2023-05-24, after the change: allocated (dated 1992-04-16)"}]}],"classification_history":{"33892ef54a0ce37b":[{"raw_change_id":39752,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T02:37:39+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from AgResearch (APNIC) to Microsoft Operations PTE Ltd (APNIC) on 2023-05-23 04:19 UTC. The registration changed hands; it is not a new allocation from APNIC."},{"raw_change_id":39752,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:02:01+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from AgResearch (APNIC) to Microsoft Operations PTE Ltd (APNIC) on 2023-05-23 04:19 UTC. The registration changed hands; it is not a new allocation from APNIC."},{"raw_change_id":39752,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:44:12+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from AgResearch (APNIC) to Microsoft Operations PTE Ltd (APNIC) on 2023-05-23 04:19 UTC. The registration changed hands; it is not a new allocation from APNIC."},{"raw_change_id":39752,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:46:47+00:00","current":1,"public_explanation":"APNIC's transfer log records a transfer from AgResearch (APNIC) to Microsoft Operations PTE Ltd (APNIC) on 2023-05-23 04:19 UTC. The registration changed hands; it is not a new allocation from APNIC."}]},"arin_statistics_now":{"status":"not listed"}}