{"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":"153.57.224.0/19","resource_type":"ipv4","page":"https://rirtracker.com/ip/153.57.224.0-153.57.255.255/","arin_statistics_now":{"file_date":"2026-10-09","status":"allocated (dated 2026-04-10)"},"current_holder":{"rir":"ARIN","org":"South Slope Cooperative Telephone Company","how":"ARIN's statistics for 2026-10-09 and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":43454,"date":"2026-04-10T18:14:21Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"NCR Voyix Corporation","recipient_org":"South Slope Cooperative Telephone Company","range":"153.57.224.0/19"}],"events":[{"event_id":"3fa1742d3948dad8","report_date":"2026-04-10","source":"arin_issued","raw_action":"ADD","raw_line":"Add 153.57.224.0-153.57.255.255","resource_type":"ipv4","resource":"153.57.224.0/19","start":"153.57.224.0","end":"153.57.255.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-ARIN transfer","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"NCR Voyix Corporation","recipient_organization":"South Slope Cooperative Telephone Company","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.0.0","classified_at":"2026-10-09T19:28:19+00:00","page":"https://rirtracker.com/ip/153.57.224.0-153.57.255.255/#e-3fa1742d3948dad8","evidence_url":"https://rirtracker.com/api/v1/events/3fa1742d3948dad8.json","piece_of":{"resource":"153.57.0.0/16","page":"https://rirtracker.com/ip/153.57.0.0-153.57.255.255/"},"explanation":"ARIN's transfer log records a transfer from NCR Voyix Corporation (ARIN) to South Slope Cooperative Telephone Company (ARIN) on 2026-04-10 18:14 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-April/006328.html","retrieved_at":"2026-10-09T18:53:59+00:00","summary":"ARIN-Issued report for 2026-04-10: \"Add 153.57.224.0-153.57.255.255\""},{"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 2026-04-10 18:14 UTC, NCR Voyix Corporation (ARIN) to South Slope Cooperative Telephone Company (ARIN); resources moved: 153.57.224.0/19"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260409","retrieved_at":"2026-10-09T18:59:37+00:00","summary":"ARIN delegated statistics 2026-04-09 (produced 2026-04-09T13:00:39+00:00), before the report: allocated (dated 1991-09-23)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260411","retrieved_at":"2026-10-09T18:59:44+00:00","summary":"ARIN delegated statistics 2026-04-11 (produced 2026-04-11T13:00:39+00:00), after the report: allocated (dated 2026-04-10)"}]}],"classification_history":{"3fa1742d3948dad8":[{"raw_change_id":1663,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.0.0","classified_at":"2026-10-09T19:28:19+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from NCR Voyix Corporation (ARIN) to South Slope Cooperative Telephone Company (ARIN) on 2026-04-10 18:14 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."}]}}