{"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":"161.153.0.0/16","resource_type":"ipv4","page":"https://rirtracker.com/ip/161.153.0.0-161.153.255.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2024-07-01)"},"current_holder":{"rir":"ARIN","org":"Oracle Corporation","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":36020,"date":"2024-07-01T13:19:23Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"ABB Motors and Mechanical Inc.","recipient_org":"Oracle Corporation","range":"161.153.0.0/16","log":"ARIN"},{"id":35263,"date":"2024-04-16T17:58:36Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Reliance Electric Co.","recipient_org":"ABB Motors and Mechanical Inc.","range":"161.153.0.0/16","log":"ARIN"}],"events":[{"event_id":"a016f1a44de40bfe","registry":"ARIN","report_date":"2024-07-01","source":"arin_issued","raw_action":"ADD","raw_line":"Add 161.153.0.0-161.153.255.255","resource_type":"ipv4","resource":"161.153.0.0/16","start":"161.153.0.0","end":"161.153.255.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-ARIN transfer","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"ABB Motors and Mechanical Inc.","recipient_organization":"Oracle Corporation","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:07+00:00","page":"https://rirtracker.com/ip/161.153.0.0-161.153.255.255/#e-a016f1a44de40bfe","report_page":"https://rirtracker.com/arin/reports/2024-07-01/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/161.153.0.0-161.153.255.255.json","explanation":"ARIN's transfer log records a transfer from ABB Motors and Mechanical Inc. (ARIN) to Oracle Corporation (ARIN) on 2024-07-01 13:19 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2024-July/005679.html","retrieved_at":"2026-10-12T18:42:40+00:00","summary":"ARIN-Issued report for 2024-07-01: \"Add 161.153.0.0-161.153.255.255\""},{"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 2024-07-01 13:19 UTC, ABB Motors and Mechanical Inc. (ARIN) to Oracle Corporation (ARIN); resources moved: 161.153.0.0/16"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20240630.gz","retrieved_at":"2026-10-12T23:42:35+00:00","summary":"ARIN delegated statistics 2024-06-30 (produced 2024-06-30T13:00:44+00:00), before the report: allocated (dated 1992-12-15)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20240702.gz","retrieved_at":"2026-10-12T23:42:41+00:00","summary":"ARIN delegated statistics 2024-07-02 (produced 2024-07-02T13:00:44+00:00), after the report: allocated (dated 2024-07-01)"}]},{"event_id":"046acb59edf38938","registry":"ARIN","report_date":"2024-04-16","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"161.153.0.0/16","start":"161.153.0.0","end":"161.153.255.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Reliance Electric Co.","recipient_organization":"ABB Motors and Mechanical Inc.","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:14+00:00","page":"https://rirtracker.com/ip/161.153.0.0-161.153.255.255/#e-046acb59edf38938","report_page":"https://rirtracker.com/arin/reports/2024-04-16/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/161.153.0.0-161.153.255.255.json","observed":"Merger/acquisition: Reliance Electric Co. (ARIN) to ABB Motors and Mechanical Inc. (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Reliance Electric Co. (ARIN) to ABB Motors and Mechanical Inc. (ARIN) on 2024-04-16 17:58 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 2024-04-16 17:58 UTC, Reliance Electric Co. (ARIN) to ABB Motors and Mechanical Inc. (ARIN); resources moved: 161.153.0.0/16"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20240415.gz","retrieved_at":"2026-10-12T23:38:25+00:00","summary":"ARIN delegated statistics 2024-04-15 (produced 2024-04-15T13:00:49+00:00), before the report: allocated (dated 1992-12-15)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20240417.gz","retrieved_at":"2026-10-12T23:38:30+00:00","summary":"ARIN delegated statistics 2024-04-17 (produced 2024-04-17T13:00:47+00:00), after the report: allocated (dated 1992-12-15)"}]}],"classification_history":{"a016f1a44de40bfe":[{"raw_change_id":188011,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T04:02:39+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from ABB Motors and Mechanical Inc. (ARIN) to Oracle Corporation (ARIN) on 2024-07-01 13:19 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":188011,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:07:45+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from ABB Motors and Mechanical Inc. (ARIN) to Oracle Corporation (ARIN) on 2024-07-01 13:19 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":188011,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:50:37+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from ABB Motors and Mechanical Inc. (ARIN) to Oracle Corporation (ARIN) on 2024-07-01 13:19 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":188011,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:07+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from ABB Motors and Mechanical Inc. (ARIN) to Oracle Corporation (ARIN) on 2024-07-01 13:19 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."}],"046acb59edf38938":[{"raw_change_id":570685,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:14+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Reliance Electric Co. (ARIN) to ABB Motors and Mechanical Inc. (ARIN) on 2024-04-16 17:58 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."}]},"arin_statistics_now":{"status":"allocated (dated 2024-07-01)"}}