{"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":"160.231.64.0/18","resource_type":"ipv4","page":"https://rirtracker.com/ip/160.231.64.0-160.231.127.255/","statistics_now":{"registry":"RIPE NCC","status":"allocated (dated 1992-06-22)"},"current_holder":{"rir":"RIPE NCC","org":"Dassault Systemes SE","how":"The RIPE NCC's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":58854,"date":"2018-07-31T19:00:00Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_org":null,"recipient_org":"DASSAULT SYSTEMES SE","range":"160.231.64.0/18","log":"RIPE NCC"},{"id":14034,"date":"2018-07-31T14:37:52Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_org":"Dassault Systemes Americas Corp.","recipient_org":"Dassault Systemes SE","range":"160.231.64.0/18","log":"ARIN"},{"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":"ddd41ec0cb0f26d2","registry":"ARIN","report_date":"2018-07-31","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"160.231.64.0/18","start":"160.231.64.0","end":"160.231.127.255","classification":"INTER_RIR_TRANSFER_OUT","classification_label":"Inter-RIR transfer out of ARIN","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_organization":"Dassault Systemes Americas Corp.","recipient_organization":"Dassault Systemes SE","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":"2026-10-14T00:18:37+00:00","page":"https://rirtracker.com/ip/160.231.64.0-160.231.127.255/#e-ddd41ec0cb0f26d2","report_page":"https://rirtracker.com/arin/reports/2018-07-31/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/160.231.64.0-160.231.127.255.json","observed":"Transfer: Dassault Systemes Americas Corp. (ARIN) to Dassault Systemes SE (RIPE NCC)","piece_of":{"resource":"160.231.0.0/16","page":"https://rirtracker.com/ip/160.231.0.0-160.231.255.255/"},"same_transfer_as":"0c28a03fd251a647","explanation":"ARIN's transfer log records a transfer from Dassault Systemes Americas Corp. (ARIN) to Dassault Systemes SE (RIPE NCC) on 2018-07-31 14:37 UTC: it left ARIN for the RIPE NCC. 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 2018-07-31 14:37 UTC, Dassault Systemes Americas Corp. (ARIN) to Dassault Systemes SE (RIPE NCC); resources moved: 160.231.64.0/18"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20180730.gz","retrieved_at":"2026-10-12T21:50:08+00:00","summary":"ARIN delegated statistics 2018-07-30 (produced 2018-07-30T05:00:21+00:00), before the report: assigned (dated 1992-06-22)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20180801.gz","retrieved_at":"2026-10-12T21:50:13+00:00","summary":"ARIN delegated statistics 2018-08-01 (produced 2018-08-01T05:00:24+00:00), after the report: not listed"}]},{"event_id":"0c28a03fd251a647","registry":"RIPE NCC","report_date":"2018-07-31","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"160.231.64.0/18","start":"160.231.64.0","end":"160.231.127.255","classification":"INTER_RIR_TRANSFER_IN","classification_label":"Inter-RIR transfer into the RIPE NCC","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_organization":null,"recipient_organization":"DASSAULT SYSTEMES SE","inventory_effect":"Transferred into RIPE NCC administration; not a new issuance","inventory_effect_code":"TRANSFER_IN","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:47:36+00:00","page":"https://rirtracker.com/ip/160.231.64.0-160.231.127.255/#e-0c28a03fd251a647","report_page":"https://rirtracker.com/ripe/reports/2018-07-31/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/160.231.64.0-160.231.127.255.json","observed":"Transfer: (no name) (ARIN) to DASSAULT SYSTEMES SE (RIPE NCC)","same_transfer_as":"ddd41ec0cb0f26d2","explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to DASSAULT SYSTEMES SE (RIPE NCC) on 2018-07-31 19:00 UTC: it came to the RIPE NCC from ARIN. It was already issued by another registry, so this is not a new issuance.","evidence":[{"type":"transfer","url":"https://ftp.ripe.net/pub/stats/ripencc/transfers/transfers_latest.json","retrieved_at":"2026-10-13T21:49:37+00:00","summary":"Transfer log: RESOURCE_TRANSFER on 2018-07-31 19:00 UTC, (no name) (ARIN) to DASSAULT SYSTEMES SE (RIPE NCC); resources moved: 160.231.64.0/18"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2018/delegated-ripencc-extended-20180730.bz2","retrieved_at":"2026-10-12T21:50:09+00:00","summary":"RIPE NCC delegated statistics 2018-07-30 (produced 2018-07-30T21:59:59+00:00), before the change: not listed"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2018/delegated-ripencc-extended-20180731.bz2","retrieved_at":"2026-10-12T21:50:13+00:00","summary":"RIPE NCC delegated statistics 2018-07-31 (produced 2018-07-31T21:59:59+00:00), after the change: allocated (dated 1992-06-22)"}]}],"classification_history":{"ddd41ec0cb0f26d2":[{"raw_change_id":555317,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:37+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from Dassault Systemes Americas Corp. 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