{"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":"204.153.216.0/23","resource_type":"ipv4","page":"https://rirtracker.com/ip/204.153.216.0-204.153.217.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 1995-01-20)"},"current_holder":{"rir":"ARIN","org":"Altera Digital Health, Inc.","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":39952,"date":"2025-04-07T11:34:07Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Allscripts","recipient_org":"Altera Digital Health, Inc.","range":"204.153.216.0/23","log":"ARIN"},{"id":19569,"date":"2019-12-19T20:48:19Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"PF2 EIS LLC","recipient_org":"Allscripts","range":"204.153.216.0/23","log":"ARIN"},{"id":10835,"date":"2017-08-30T17:11:09Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"McKesson Technologies Inc.","recipient_org":"PF2 EIS LLC","range":"204.153.216.0/23","log":"ARIN"}],"events":[{"event_id":"c1ce3eb892a9758d","registry":"ARIN","report_date":"2025-04-07","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"204.153.216.0/23","start":"204.153.216.0","end":"204.153.217.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Allscripts","recipient_organization":"Altera Digital Health, Inc.","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:21+00:00","page":"https://rirtracker.com/ip/204.153.216.0-204.153.217.255/#e-c1ce3eb892a9758d","report_page":"https://rirtracker.com/arin/reports/2025-04-07/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/204.153.216.0-204.153.217.255.json","observed":"Merger/acquisition: Allscripts (ARIN) to Altera Digital Health, Inc. (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Allscripts (ARIN) to Altera Digital Health, Inc. (ARIN) on 2025-04-07 11:34 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 2025-04-07 11:34 UTC, Allscripts (ARIN) to Altera Digital Health, Inc. (ARIN); resources moved: 204.153.216.0/23"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20250406.gz","retrieved_at":"2026-10-12T23:57:43+00:00","summary":"ARIN delegated statistics 2025-04-06 (produced 2025-04-06T13:01:09+00:00), before the report: allocated (dated 1995-01-20)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20250408.gz","retrieved_at":"2026-10-12T23:57:48+00:00","summary":"ARIN delegated statistics 2025-04-08 (produced 2025-04-08T13:01:09+00:00), after the report: allocated (dated 1995-01-20)"}]},{"event_id":"7e3d8b1a994581ee","registry":"ARIN","report_date":"2019-12-19","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"204.153.216.0/23","start":"204.153.216.0","end":"204.153.217.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"PF2 EIS LLC","recipient_organization":"Allscripts","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:48+00:00","page":"https://rirtracker.com/ip/204.153.216.0-204.153.217.255/#e-7e3d8b1a994581ee","report_page":"https://rirtracker.com/arin/reports/2019-12-19/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/204.153.216.0-204.153.217.255.json","observed":"Merger/acquisition: PF2 EIS LLC (ARIN) to Allscripts (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from PF2 EIS LLC (ARIN) to Allscripts (ARIN) on 2019-12-19 20:48 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 2019-12-19 20:48 UTC, PF2 EIS LLC (ARIN) to Allscripts (ARIN); resources moved: 204.153.216.0/23"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2019/delegated-arin-extended-20191218.gz","retrieved_at":"2026-10-12T22:16:06+00:00","summary":"ARIN delegated statistics 2019-12-18 (produced 2019-12-18T15:00:14+00:00), before the report: assigned (dated 1995-01-20)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2019/delegated-arin-extended-20191220.gz","retrieved_at":"2026-10-12T22:16:22+00:00","summary":"ARIN delegated statistics 2019-12-20 (produced 2019-12-20T15:00:13+00:00), after the report: assigned (dated 1995-01-20)"}]},{"event_id":"c757c32e9f9561f5","registry":"ARIN","report_date":"2017-08-30","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"204.153.216.0/23","start":"204.153.216.0","end":"204.153.217.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"McKesson Technologies Inc.","recipient_organization":"PF2 EIS LLC","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:32+00:00","page":"https://rirtracker.com/ip/204.153.216.0-204.153.217.255/#e-c757c32e9f9561f5","report_page":"https://rirtracker.com/arin/reports/2017-08-30/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/204.153.216.0-204.153.217.255.json","observed":"Merger/acquisition: McKesson Technologies Inc. (ARIN) to PF2 EIS LLC (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from McKesson Technologies Inc. (ARIN) to PF2 EIS LLC (ARIN) on 2017-08-30 17:11 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 2017-08-30 17:11 UTC, McKesson Technologies Inc. (ARIN) to PF2 EIS LLC (ARIN); resources moved: 204.153.216.0/23"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20170829.gz","retrieved_at":"2026-10-12T21:33:28+00:00","summary":"ARIN delegated statistics 2017-08-29 (produced 2017-08-29T05:10:56+00:00), before the report: assigned (dated 1995-01-20)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20170831.gz","retrieved_at":"2026-10-12T21:33:33+00:00","summary":"ARIN delegated statistics 2017-08-31 (produced 2017-08-31T05:10:39+00:00), after the report: assigned (dated 1995-01-20)"}]}],"classification_history":{"c1ce3eb892a9758d":[{"raw_change_id":573320,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:21+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Allscripts (ARIN) to Altera Digital Health, Inc. (ARIN) on 2025-04-07 11:34 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."}],"7e3d8b1a994581ee":[{"raw_change_id":559793,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:48+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from PF2 EIS LLC (ARIN) to Allscripts (ARIN) on 2019-12-19 20:48 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."}],"c757c32e9f9561f5":[{"raw_change_id":553085,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:32+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from McKesson Technologies Inc. (ARIN) to PF2 EIS LLC (ARIN) on 2017-08-30 17:11 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 1995-01-20)"}}