{"classifier_version":"1.0.0","generated":"2026-10-09T21:19:22+00:00","documentation":"https://rirtracker.com/api/","disclaimer":"This site independently analyzes publicly available Internet number-resource records. It is not affiliated with or endorsed by the American Registry for Internet Numbers (ARIN), the Number Resource Organization (NRO), or any 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":"64.239.28.0/23","resource_type":"ipv4","page":"https://rirtracker.com/ip/64.239.28.0-64.239.29.255/","arin_statistics_now":{"file_date":"2026-10-09","status":"allocated (dated 2026-01-05)"},"current_holder":{"rir":"ARIN","org":"CPS ENERGY","how":"ARIN's statistics for 2026-10-09 and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":42509,"date":"2026-01-05T16:39:59Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Aptum Technologies","recipient_org":"CPS ENERGY","range":"64.239.28.0/23"},{"id":16527,"date":"2018-12-05T13:52:09Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Peer 1 Dedicated Hosting","recipient_org":"Cogeco Peer 1","range":"64.239.0.0/17"}],"events":[{"event_id":"6ab4c9d2df25e2f0","report_date":"2026-01-05","source":"arin_issued","raw_action":"ADD","raw_line":"Add 64.239.28.0-64.239.29.255","resource_type":"ipv4","resource":"64.239.28.0/23","start":"64.239.28.0","end":"64.239.29.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-ARIN transfer","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Aptum Technologies","recipient_organization":"CPS ENERGY","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.0.0","classified_at":"2026-10-09T19:28:16+00:00","page":"https://rirtracker.com/ip/64.239.28.0-64.239.29.255/#e-6ab4c9d2df25e2f0","evidence_url":"https://rirtracker.com/api/v1/events/6ab4c9d2df25e2f0.json","explanation":"ARIN's transfer log records a transfer from Aptum Technologies (ARIN) to CPS ENERGY (ARIN) on 2026-01-05 16:39 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/2026-January/006232.html","retrieved_at":"2026-10-09T18:53:52+00:00","summary":"ARIN-Issued report for 2026-01-05: \"Add 64.239.28.0-64.239.29.255\""},{"type":"transfer","url":"https://ftp.arin.net/pub/stats/arin/transfers/transfers_latest.json","retrieved_at":"2026-10-09T18:54:15+00:00","summary":"Transfer log: RESOURCE_TRANSFER on 2026-01-05 16:39 UTC, Aptum Technologies (ARIN) to CPS ENERGY (ARIN); resources moved: 64.239.28.0/23"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260104","retrieved_at":"2026-10-09T18:54:24+00:00","summary":"ARIN delegated statistics 2026-01-04 (produced 2026-01-04T14:00:47+00:00), before the report: allocated (dated 2001-09-25)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260106","retrieved_at":"2026-10-09T18:54:31+00:00","summary":"ARIN delegated statistics 2026-01-06 (produced 2026-01-06T14:00:48+00:00), after the report: allocated (dated 2026-01-05)"}]}],"classification_history":{"6ab4c9d2df25e2f0":[{"raw_change_id":9,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.0.0","classified_at":"2026-10-09T19:28:16+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from Aptum Technologies (ARIN) to CPS ENERGY (ARIN) on 2026-01-05 16:39 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."}]}}