{"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":"23.163.4.0/24","resource_type":"ipv4","page":"https://rirtracker.com/ip/23.163.4.0-23.163.4.255/","arin_statistics_now":{"file_date":"2026-10-09","status":"allocated (dated 2026-08-27)"},"current_holder":{"rir":"ARIN","org":null,"how":"ARIN's statistics for 2026-10-09"},"rdap_snapshots":[],"transfers":[],"events":[{"event_id":"bd94800c38c7ab65","report_date":"2026-08-27","source":"arin_issued","raw_action":"ADD","raw_line":"Add 23.163.4.0-23.163.4.255","resource_type":"ipv4","resource":"23.163.4.0/24","start":"23.163.4.0","end":"23.163.4.255","classification":"APPARENT_NEW_ISSUANCE","classification_label":"Apparent new issuance","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"Likely issued from ARIN-controlled inventory","inventory_effect_code":"ISSUED","provisional":false,"classifier_version":"1.0.0","classified_at":"2026-10-09T19:28:24+00:00","page":"https://rirtracker.com/ip/23.163.4.0-23.163.4.255/#e-bd94800c38c7ab65","evidence_url":"https://rirtracker.com/api/v1/events/bd94800c38c7ab65.json","explanation":"No transfer record matches. ARIN's statistics show it reserved on 2026-08-26 and allocated (dated 2026-08-27) on 2026-08-28. It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2026-August/006470.html","retrieved_at":"2026-10-09T18:54:07+00:00","summary":"ARIN-Issued report for 2026-08-27: \"Add 23.163.4.0-23.163.4.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260826","retrieved_at":"2026-10-09T19:06:42+00:00","summary":"ARIN delegated statistics 2026-08-26 (produced 2026-08-26T13:00:21+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260828","retrieved_at":"2026-10-09T19:06:48+00:00","summary":"ARIN delegated statistics 2026-08-28 (produced 2026-08-28T13:00:20+00:00), after the report: allocated (dated 2026-08-27)"}]}],"classification_history":{"bd94800c38c7ab65":[{"raw_change_id":4324,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.0.0","classified_at":"2026-10-09T19:28:24+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2026-08-26 and allocated (dated 2026-08-27) on 2026-08-28. It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN."}]}}