{"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":"198.91.2.0/23","resource_type":"ipv4","page":"https://rirtracker.com/ip/198.91.2.0-198.91.3.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 1993-03-05)"},"current_holder":{"rir":"ARIN","org":"Merative US L.P.","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":30799,"date":"2023-02-17T19:59:35Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Truven Health Analytics, Inc.","recipient_org":"Merative US L.P.","range":"198.91.2.0/23","log":"ARIN"}],"events":[{"event_id":"6c8b23ba526d2fce","registry":"ARIN","report_date":"2023-02-17","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"198.91.2.0/23","start":"198.91.2.0","end":"198.91.3.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Truven Health Analytics, Inc.","recipient_organization":"Merative US L.P.","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:07+00:00","page":"https://rirtracker.com/ip/198.91.2.0-198.91.3.255/#e-6c8b23ba526d2fce","report_page":"https://rirtracker.com/arin/reports/2023-02-17/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/198.91.2.0-198.91.3.255.json","observed":"Merger/acquisition: Truven Health Analytics, Inc. (ARIN) to Merative US L.P. (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Truven Health Analytics, Inc. (ARIN) to Merative US L.P. (ARIN) on 2023-02-17 19:59 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 2023-02-17 19:59 UTC, Truven Health Analytics, Inc. (ARIN) to Merative US L.P. (ARIN); resources moved: 198.91.2.0/23"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2023/delegated-arin-extended-20230216.gz","retrieved_at":"2026-10-12T23:16:00+00:00","summary":"ARIN delegated statistics 2023-02-16 (produced 2023-02-16T14:00:10+00:00), before the report: allocated (dated 1993-03-05)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2023/delegated-arin-extended-20230218.gz","retrieved_at":"2026-10-12T23:16:05+00:00","summary":"ARIN delegated statistics 2023-02-18 (produced 2023-02-18T14:00:10+00:00), after the report: allocated (dated 1993-03-05)"}]}],"classification_history":{"6c8b23ba526d2fce":[{"raw_change_id":567703,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:07+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Truven Health Analytics, Inc. (ARIN) to Merative US L.P. (ARIN) on 2023-02-17 19:59 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 1993-03-05)"}}