{"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":"216.183.72.0/21","resource_type":"ipv4","page":"https://rirtracker.com/ip/216.183.72.0-216.183.79.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2025-09-22)"},"current_holder":{"rir":"ARIN","org":"Clearwater Analytics, LLC","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":41353,"date":"2025-09-22T12:07:54Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"DakotaPro.biz","recipient_org":"Clearwater Analytics, LLC","range":"216.183.72.0/21","log":"ARIN"}],"events":[{"event_id":"939c85fb75f2880e","registry":"ARIN","report_date":"2025-09-22","source":"arin_issued","raw_action":"ADD","raw_line":"Add 216.183.72.0-216.183.79.255","resource_type":"ipv4","resource":"216.183.72.0/21","start":"216.183.72.0","end":"216.183.79.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-ARIN transfer","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"DakotaPro.biz","recipient_organization":"Clearwater Analytics, LLC","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:34+00:00","page":"https://rirtracker.com/ip/216.183.72.0-216.183.79.255/#e-939c85fb75f2880e","report_page":"https://rirtracker.com/arin/reports/2025-09-22/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/216.183.72.0-216.183.79.255.json","explanation":"ARIN's transfer log records a transfer from DakotaPro.biz (ARIN) to Clearwater Analytics, LLC (ARIN) on 2025-09-22 12:07 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/2025-September/006127.html","retrieved_at":"2026-10-12T18:43:09+00:00","summary":"ARIN-Issued report for 2025-09-22: \"Add 216.183.72.0-216.183.79.255\""},{"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 2025-09-22 12:07 UTC, DakotaPro.biz (ARIN) to Clearwater Analytics, LLC (ARIN); resources moved: 216.183.72.0/21"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20250921.gz","retrieved_at":"2026-10-13T00:07:13+00:00","summary":"ARIN delegated statistics 2025-09-21 (produced 2025-09-21T13:00:50+00:00), before the report: allocated (dated 2000-08-24)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20250923.gz","retrieved_at":"2026-10-13T00:07:19+00:00","summary":"ARIN delegated statistics 2025-09-23 (produced 2025-09-23T13:00:51+00:00), after the report: allocated (dated 2025-09-22)"}]}],"classification_history":{"939c85fb75f2880e":[{"raw_change_id":195972,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T04:07:44+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from DakotaPro.biz (ARIN) to Clearwater Analytics, LLC (ARIN) on 2025-09-22 12:07 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":195972,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:08:06+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from DakotaPro.biz (ARIN) to Clearwater Analytics, LLC (ARIN) on 2025-09-22 12:07 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":195972,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:51:00+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from DakotaPro.biz (ARIN) to Clearwater Analytics, LLC (ARIN) on 2025-09-22 12:07 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":195972,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:34+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from DakotaPro.biz (ARIN) to Clearwater Analytics, LLC (ARIN) on 2025-09-22 12:07 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."}]},"arin_statistics_now":{"status":"allocated (dated 2025-09-22)"}}