{"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":"66.212.48.0/22","resource_type":"ipv4","page":"https://rirtracker.com/ip/66.212.48.0-66.212.51.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2017-02-22), allocated (dated 2017-03-27)"},"current_holder":{"rir":"ARIN","org":null,"how":"ARIN's latest statistics"},"rdap_snapshots":[],"transfers":[],"events":[{"event_id":"cbb2bacbb9c52df7","registry":"ARIN","report_date":"2017-02-22","source":"arin_issued","raw_action":"REMOVE","raw_line":"Remove 66.212.48.0-66.212.51.255","resource_type":"ipv4","resource":"66.212.48.0/22","start":"66.212.48.0","end":"66.212.51.255","classification":"POOL_RECORD_CHANGE","classification_label":"Change to ARIN's own pool record","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"Part of the issuance reported the same day","inventory_effect_code":"PAIRED","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:51:43+00:00","page":"https://rirtracker.com/ip/66.212.48.0-66.212.51.255/#e-cbb2bacbb9c52df7","report_page":"https://rirtracker.com/arin/reports/2017-02-22/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/66.212.48.0-66.212.51.255.json","explanation":"ARIN's statistics show it reserved on 2017-02-21 and allocated (dated 2017-02-22), reserved on 2017-02-23. ARIN removed its own pool record for this range as part of issuing it: the same report adds 66.212.50.0-66.212.50.255, 66.212.51.0-66.212.51.255. The issuance is explained on those lines.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2017-February/002995.html","retrieved_at":"2026-10-12T18:39:31+00:00","summary":"ARIN-Issued report for 2017-02-22: \"Remove 66.212.48.0-66.212.51.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20170221.gz","retrieved_at":"2026-10-12T21:24:01+00:00","summary":"ARIN delegated statistics 2017-02-21 (produced 2017-02-21T06:09:35+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20170223.gz","retrieved_at":"2026-10-12T21:24:06+00:00","summary":"ARIN delegated statistics 2017-02-23 (produced 2017-02-23T06:09:03+00:00), after the report: allocated (dated 2017-02-22), reserved"}]}],"classification_history":{"cbb2bacbb9c52df7":[{"raw_change_id":147958,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:37:17+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2017-02-21 and allocated (dated 2017-02-22), reserved on 2017-02-23. ARIN removed its own pool record for this range as part of issuing it: the same report adds 66.212.50.0-66.212.50.255, 66.212.51.0-66.212.51.255. The issuance is explained on those lines."},{"raw_change_id":147958,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:05:58+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2017-02-21 and allocated (dated 2017-02-22), reserved on 2017-02-23. ARIN removed its own pool record for this range as part of issuing it: the same report adds 66.212.50.0-66.212.50.255, 66.212.51.0-66.212.51.255. The issuance is explained on those lines."},{"raw_change_id":147958,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:48:37+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2017-02-21 and allocated (dated 2017-02-22), reserved on 2017-02-23. ARIN removed its own pool record for this range as part of issuing it: the same report adds 66.212.50.0-66.212.50.255, 66.212.51.0-66.212.51.255. The issuance is explained on those lines."},{"raw_change_id":147958,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:51:43+00:00","current":1,"public_explanation":"ARIN's statistics show it reserved on 2017-02-21 and allocated (dated 2017-02-22), reserved on 2017-02-23. ARIN removed its own pool record for this range as part of issuing it: the same report adds 66.212.50.0-66.212.50.255, 66.212.51.0-66.212.51.255. The issuance is explained on those lines."}]},"arin_statistics_now":{"status":"allocated (dated 2017-02-22), allocated (dated 2017-03-27)"}}