{"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":"AS397571","resource_type":"asn","page":"https://rirtracker.com/asn/397571/","statistics_now":{"registry":"ARIN","status":"assigned (dated 2019-05-13)"},"current_holder":{"rir":"ARIN","org":"ROCKWELL AUTOMATION Inc.","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":4316,"date":"2025-01-13T17:02:24Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Plex Systems, Inc.","recipient_org":"ROCKWELL AUTOMATION Inc.","range":"AS397571","log":"ARIN"}],"events":[{"event_id":"8538384af32bbee2","registry":"ARIN","report_date":"2025-01-13","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"asn","resource":"AS397571","start":397571,"end":397571,"classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Plex Systems, Inc.","recipient_organization":"ROCKWELL AUTOMATION Inc.","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:19+00:00","page":"https://rirtracker.com/asn/397571/#e-8538384af32bbee2","report_page":"https://rirtracker.com/arin/reports/2025-01-13/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/397571.json","observed":"Merger/acquisition: Plex Systems, Inc. (ARIN) to ROCKWELL AUTOMATION Inc. (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Plex Systems, Inc. (ARIN) to ROCKWELL AUTOMATION Inc. (ARIN) on 2025-01-13 17:02 UTC. The registration changed hands; it is not a new allocation from ARIN. ARIN-Issued and ARIN's statistics don't show this change; only the transfer log records it.","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: MERGER_ACQUISITION on 2025-01-13 17:02 UTC, Plex Systems, Inc. (ARIN) to ROCKWELL AUTOMATION Inc. (ARIN); resources moved: AS397571"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20250112.gz","retrieved_at":"2026-10-12T23:53:04+00:00","summary":"ARIN delegated statistics 2025-01-12 (produced 2025-01-12T14:01:06+00:00), before the report: assigned (dated 2019-05-13)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20250114.gz","retrieved_at":"2026-10-12T23:53:09+00:00","summary":"ARIN delegated statistics 2025-01-14 (produced 2025-01-14T14:01:07+00:00), after the report: assigned (dated 2019-05-13)"}]},{"event_id":"1de941c86e7aacb4","registry":"ARIN","report_date":"2019-05-13","source":"arin_issued","raw_action":"ADD","raw_line":"Add AS397571","resource_type":"asn","resource":"AS397571","start":397571,"end":397571,"classification":"APPARENT_NEW_ISSUANCE","classification_label":"Apparent new issuance","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"Likely issued from ARIN-controlled inventory","inventory_effect_code":"ISSUED","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:52:30+00:00","page":"https://rirtracker.com/asn/397571/#e-1de941c86e7aacb4","report_page":"https://rirtracker.com/arin/reports/2019-05-13/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/397571.json","explanation":"No transfer record matches. ARIN's statistics show it available on 2019-05-12 and assigned (dated 2019-05-13) on 2019-05-14. It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2019-May/003806.html","retrieved_at":"2026-10-12T18:40:29+00:00","summary":"ARIN-Issued report for 2019-05-13: \"Add AS397571\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2019/delegated-arin-extended-20190512.gz","retrieved_at":"2026-10-12T22:04:56+00:00","summary":"ARIN delegated statistics 2019-05-12 (produced 2019-05-12T05:00:13+00:00), before the report: available"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2019/delegated-arin-extended-20190514.gz","retrieved_at":"2026-10-12T22:05:01+00:00","summary":"ARIN delegated statistics 2019-05-14 (produced 2019-05-14T05:00:14+00:00), after the report: assigned (dated 2019-05-13)"}]}],"classification_history":{"8538384af32bbee2":[{"raw_change_id":572694,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:19+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Plex Systems, Inc. (ARIN) to ROCKWELL AUTOMATION Inc. (ARIN) on 2025-01-13 17:02 UTC. The registration changed hands; it is not a new allocation from ARIN. ARIN-Issued and ARIN's statistics don't show this change; only the transfer log records it."}],"1de941c86e7aacb4":[{"raw_change_id":159674,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:44:18+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2019-05-12 and assigned (dated 2019-05-13) on 2019-05-14. It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN."},{"raw_change_id":159674,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:06:33+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2019-05-12 and assigned (dated 2019-05-13) on 2019-05-14. It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN."},{"raw_change_id":159674,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:49:16+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2019-05-12 and assigned (dated 2019-05-13) on 2019-05-14. It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN."},{"raw_change_id":159674,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:52:30+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2019-05-12 and assigned (dated 2019-05-13) on 2019-05-14. It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN."}]},"arin_statistics_now":{"status":"assigned (dated 2019-05-13)"}}