{"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":"160.231.128.0/18","resource_type":"ipv4","page":"https://rirtracker.com/ip/160.231.128.0-160.231.191.255/","statistics_now":{"registry":"APNIC","status":"allocated (dated 1992-06-22)"},"current_holder":{"rir":"APNIC","org":"Dassault Systemes Australia Pty Ltd.","how":"APNIC's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":10590,"date":"2017-08-02T15:05:21Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"APNIC","source_org":"Dassault Systemes Americas Corp.","recipient_org":"Dassault Systemes Australia Pty Ltd.","range":"160.231.128.0/18","log":"ARIN"},{"id":125486,"date":"2017-08-02T05:46:47Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"APNIC","source_org":"DSA-84","recipient_org":"DASSAULT SYSTEMES AUSTRALIA PTY LTD","range":"160.231.128.0/18","log":"APNIC"},{"id":8553,"date":"2017-01-12T18:56:44Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Dassault Systemes of America Corp.","recipient_org":"DASSAULT SYSTEMS AMERICASCORP","range":"160.231.0.0/16","log":"ARIN"}],"events":[{"event_id":"7db3b47c961200e4","registry":"ARIN","report_date":"2017-08-02","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"160.231.128.0/18","start":"160.231.128.0","end":"160.231.191.255","classification":"INTER_RIR_TRANSFER_OUT","classification_label":"Inter-RIR transfer out of ARIN","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"APNIC","source_organization":"Dassault Systemes Americas Corp.","recipient_organization":"Dassault Systemes Australia Pty Ltd.","inventory_effect":"Transferred out of ARIN administration; not offered to ARIN applicants","inventory_effect_code":"TRANSFER_OUT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:31+00:00","page":"https://rirtracker.com/ip/160.231.128.0-160.231.191.255/#e-7db3b47c961200e4","report_page":"https://rirtracker.com/arin/reports/2017-08-02/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/160.231.128.0-160.231.191.255.json","observed":"Transfer: Dassault Systemes Americas Corp. (ARIN) to Dassault Systemes Australia Pty Ltd. (APNIC)","piece_of":{"resource":"160.231.0.0/16","page":"https://rirtracker.com/ip/160.231.0.0-160.231.255.255/"},"same_transfer_as":"5c42480bbbd961ea","explanation":"ARIN's transfer log records a transfer from Dassault Systemes Americas Corp. (ARIN) to Dassault Systemes Australia Pty Ltd. (APNIC) on 2017-08-02 15:05 UTC: it left ARIN for APNIC. It is not a new allocation and is not offered to ARIN applicants.","evidence":[{"type":"transfer","url":"https://ftp.arin.net/pub/stats/arin/transfers/transfers_latest.json","retrieved_at":"2026-10-13T13:57:20+00:00","summary":"Transfer log: RESOURCE_TRANSFER on 2017-08-02 15:05 UTC, Dassault Systemes Americas Corp. (ARIN) to Dassault Systemes Australia Pty Ltd. (APNIC); resources moved: 160.231.128.0/18"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20170801.gz","retrieved_at":"2026-10-12T21:32:03+00:00","summary":"ARIN delegated statistics 2017-08-01 (produced 2017-08-01T05:09:27+00:00), before the report: assigned (dated 1992-06-22)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20170803.gz","retrieved_at":"2026-10-12T21:32:08+00:00","summary":"ARIN delegated statistics 2017-08-03 (produced 2017-08-03T05:10:16+00:00), after the report: not listed"}]},{"event_id":"5c42480bbbd961ea","registry":"APNIC","report_date":"2017-08-02","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"160.231.128.0/18","start":"160.231.128.0","end":"160.231.191.255","classification":"INTER_RIR_TRANSFER_IN","classification_label":"Inter-RIR transfer into APNIC","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"APNIC","source_organization":"DSA-84","recipient_organization":"DASSAULT SYSTEMES AUSTRALIA PTY LTD","inventory_effect":"Transferred into APNIC administration; not a new issuance","inventory_effect_code":"TRANSFER_IN","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:46:35+00:00","page":"https://rirtracker.com/ip/160.231.128.0-160.231.191.255/#e-5c42480bbbd961ea","report_page":"https://rirtracker.com/apnic/reports/2017-08-02/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/160.231.128.0-160.231.191.255.json","observed":"Transfer: DSA-84 (ARIN) to DASSAULT SYSTEMES AUSTRALIA PTY LTD (APNIC)","same_transfer_as":"7db3b47c961200e4","explanation":"APNIC's transfer log records a transfer from DSA-84 (ARIN) to DASSAULT SYSTEMES AUSTRALIA PTY LTD (APNIC) on 2017-08-02 05:46 UTC: it came to APNIC from ARIN. It was already issued by another registry, so this is not a new issuance.","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 2017-08-02 05:46 UTC, DSA-84 (ARIN) to DASSAULT SYSTEMES AUSTRALIA PTY LTD (APNIC); resources moved: 160.231.128.0/18"},{"type":"delegated_before","url":"https://ftp.apnic.net/stats/apnic/2017/delegated-apnic-extended-20170802.gz","retrieved_at":"2026-10-12T22:09:12+00:00","summary":"APNIC delegated statistics 2017-08-02, before the change: not listed"},{"type":"delegated_after","url":"https://ftp.apnic.net/stats/apnic/2017/delegated-apnic-extended-20170803.gz","retrieved_at":"2026-10-12T22:09:15+00:00","summary":"APNIC delegated statistics 2017-08-03, after the change: allocated (dated 1992-06-22)"}]}],"classification_history":{"7db3b47c961200e4":[{"raw_change_id":552871,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:31+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from Dassault Systemes Americas Corp. (ARIN) to Dassault Systemes Australia Pty Ltd. (APNIC) on 2017-08-02 15:05 UTC: it left ARIN for APNIC. It is not a new allocation and is not offered to ARIN applicants."}],"5c42480bbbd961ea":[{"raw_change_id":34831,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T02:35:31+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from DSA-84 (ARIN) to DASSAULT SYSTEMES AUSTRALIA PTY LTD (APNIC) on 2017-08-02 05:46 UTC: it came to APNIC from ARIN. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":34831,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:01:51+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from DSA-84 (ARIN) to DASSAULT SYSTEMES AUSTRALIA PTY LTD (APNIC) on 2017-08-02 05:46 UTC: it came to APNIC from ARIN. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":34831,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:44:01+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from DSA-84 (ARIN) to DASSAULT SYSTEMES AUSTRALIA PTY LTD (APNIC) on 2017-08-02 05:46 UTC: it came to APNIC from ARIN. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":34831,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:46:35+00:00","current":1,"public_explanation":"APNIC's transfer log records a transfer from DSA-84 (ARIN) to DASSAULT SYSTEMES AUSTRALIA PTY LTD (APNIC) on 2017-08-02 05:46 UTC: it came to APNIC from ARIN. It was already issued by another registry, so this is not a new issuance."}]},"arin_statistics_now":{"status":"not listed"}}