{"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":"192.91.133.0/24","resource_type":"ipv4","page":"https://rirtracker.com/ip/192.91.133.0-192.91.133.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 1991-01-11)"},"current_holder":{"rir":"ARIN","org":null,"how":"ARIN's latest statistics"},"rdap_snapshots":[],"transfers":[{"id":28874,"date":"2022-08-19T21:36:30Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Intersil","recipient_org":"Renesas Electronics America Inc.","range":"192.91.132.0/22","log":"ARIN"}],"events":[{"event_id":"6b31c14ee162b4d6","registry":"ARIN","report_date":"2014-09-22","source":"arin_issued","raw_action":"REMOVE","raw_line":"Remove 192.91.133.0-192.91.133.255","resource_type":"ipv4","resource":"192.91.133.0/24","start":"192.91.133.0","end":"192.91.133.255","classification":"UNRESOLVED","classification_label":"Unresolved change","confidence":"OBSERVED_ONLY","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"Inventory effect unknown","inventory_effect_code":"UNKNOWN","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:51:15+00:00","page":"https://rirtracker.com/ip/192.91.133.0-192.91.133.255/#e-6b31c14ee162b4d6","report_page":"https://rirtracker.com/arin/reports/2014-09-22/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/192.91.133.0-192.91.133.255.json","explanation":"No transfer record matches. ARIN's statistics show it assigned (dated 1991-01-11) on 2014-09-21 and assigned (dated 1991-01-11) on 2014-09-23. The registration was replaced with one for a different holder record, and public sources don't say why (a transfer not yet logged, a return and reissue, or an organization record change).","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2014-September/002112.html","retrieved_at":"2026-10-12T18:38:30+00:00","summary":"ARIN-Issued report for 2014-09-22: \"Remove 192.91.133.0-192.91.133.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2014/delegated-arin-extended-20140921.gz","retrieved_at":"2026-10-12T20:41:24+00:00","summary":"ARIN delegated statistics 2014-09-21 (produced 2014-09-21T05:03:47+00:00), before the report: assigned (dated 1991-01-11)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2014/delegated-arin-extended-20140923.gz","retrieved_at":"2026-10-12T20:41:29+00:00","summary":"ARIN delegated statistics 2014-09-23 (produced 2014-09-23T05:03:39+00:00), after the report: assigned (dated 1991-01-11)"}]}],"classification_history":{"6b31c14ee162b4d6":[{"raw_change_id":133948,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.0","classified_at":"2026-10-13T03:26:45+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it assigned (dated 1991-01-11) on 2014-09-21 and assigned (dated 1991-01-11) on 2014-09-23. The registration was replaced with one for a different holder record, and public sources don't say why (a transfer not yet logged, a return and reissue, or an organization record change)."},{"raw_change_id":133948,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.1","classified_at":"2026-10-13T08:05:36+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it assigned (dated 1991-01-11) on 2014-09-21 and assigned (dated 1991-01-11) on 2014-09-23. The registration was replaced with one for a different holder record, and public sources don't say why (a transfer not yet logged, a return and reissue, or an organization record change)."},{"raw_change_id":133948,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.2","classified_at":"2026-10-13T14:48:12+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it assigned (dated 1991-01-11) on 2014-09-21 and assigned (dated 1991-01-11) on 2014-09-23. The registration was replaced with one for a different holder record, and public sources don't say why (a transfer not yet logged, a return and reissue, or an organization record change)."},{"raw_change_id":133948,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.4.0","classified_at":"2026-10-13T23:51:15+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it assigned (dated 1991-01-11) on 2014-09-21 and assigned (dated 1991-01-11) on 2014-09-23. The registration was replaced with one for a different holder record, and public sources don't say why (a transfer not yet logged, a return and reissue, or an organization record change)."}]},"arin_statistics_now":{"status":"allocated (dated 1991-01-11)"}}