{"classifier_version":"1.0.0","generated":"2026-10-10T14:39:54+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":"192.133.0.0/23","resource_type":"ipv4","page":"https://rirtracker.com/ip/192.133.0.0-192.133.1.255/","arin_statistics_now":{"file_date":"2026-10-10","status":"reserved"},"current_holder":{"rir":null,"org":null,"how":null},"rdap_snapshots":[],"transfers":[{"id":9417,"date":"2017-05-01T18:52:27Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Slyce Holdings Inc.","recipient_org":"Slyce Acquisition Inc.","range":"192.133.0.0/23"}],"events":[{"event_id":"884b0cef02f38a4f","report_date":"2026-10-01","source":"arin_issued","raw_action":"REMOVE","raw_line":"Remove 192.133.0.0-192.133.1.255","resource_type":"ipv4","resource":"192.133.0.0/23","start":"192.133.0.0","end":"192.133.1.255","classification":"NO_MATERIAL_CHANGE","classification_label":"No substantive resource change found","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.0.0","classified_at":"2026-10-09T19:28:24+00:00","page":"https://rirtracker.com/ip/192.133.0.0-192.133.1.255/#e-884b0cef02f38a4f","evidence_url":"https://rirtracker.com/api/v1/events/884b0cef02f38a4f.json","explanation":"ARIN-Issued lists it as \"Remove\", but ARIN's statistics show the same record before and after (reserved).","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2026-October/006505.html","retrieved_at":"2026-10-09T18:54:11+00:00","summary":"ARIN-Issued report for 2026-10-01: \"Remove 192.133.0.0-192.133.1.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260930","retrieved_at":"2026-10-09T19:08:27+00:00","summary":"ARIN delegated statistics 2026-09-30 (produced 2026-09-30T13:00:21+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20261002","retrieved_at":"2026-10-09T19:08:33+00:00","summary":"ARIN delegated statistics 2026-10-02 (produced 2026-10-02T13:00:22+00:00), after the report: reserved"}]}],"classification_history":{"884b0cef02f38a4f":[{"raw_change_id":4765,"classification_code":"NO_MATERIAL_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.0.0","classified_at":"2026-10-09T19:28:24+00:00","current":1,"public_explanation":"ARIN-Issued lists it as \"Remove\", but ARIN's statistics show the same record before and after (reserved)."}]}}