{"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":"199.85.255.0/24","resource_type":"ipv4","page":"https://rirtracker.com/ip/199.85.255.0-199.85.255.255/","arin_statistics_now":{"file_date":"2026-10-10","status":"allocated (dated 2026-05-18)"},"current_holder":{"rir":"ARIN","org":null,"how":"ARIN's statistics for 2026-10-10"},"rdap_snapshots":[],"transfers":[],"events":[{"event_id":"20ecbf10725e2a00","report_date":"2026-05-18","source":"arin_issued","raw_action":"ADD","raw_line":"Add 199.85.255.0-199.85.255.255","resource_type":"ipv4","resource":"199.85.255.0/24","start":"199.85.255.0","end":"199.85.255.255","classification":"APPARENT_REISSUANCE","classification_label":"Apparent reissuance of previously removed resource","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":"2026-10-09T19:28:20+00:00","page":"https://rirtracker.com/ip/199.85.255.0-199.85.255.255/#e-20ecbf10725e2a00","evidence_url":"https://rirtracker.com/api/v1/events/20ecbf10725e2a00.json","explanation":"No transfer record matches. ARIN's statistics show it reserved on 2026-05-17 and allocated (dated 2026-05-18) on 2026-05-19. The tracker saw this range removed from registration on 2026-02-09 (199.85.255.0/24), so it appears to have been issued again from ARIN's pool.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2026-May/006366.html","retrieved_at":"2026-10-09T18:54:01+00:00","summary":"ARIN-Issued report for 2026-05-18: \"Add 199.85.255.0-199.85.255.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260517","retrieved_at":"2026-10-09T19:01:28+00:00","summary":"ARIN delegated statistics 2026-05-17 (produced 2026-05-17T13:00:41+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260519","retrieved_at":"2026-10-09T19:01:34+00:00","summary":"ARIN delegated statistics 2026-05-19 (produced 2026-05-19T13:00:41+00:00), after the report: allocated (dated 2026-05-18)"}]},{"event_id":"43d02548bd886dd4","report_date":"2026-05-18","source":"arin_issued","raw_action":"REMOVE","raw_line":"Remove 199.85.255.0-199.85.255.255","resource_type":"ipv4","resource":"199.85.255.0/24","start":"199.85.255.0","end":"199.85.255.255","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":"1.0.0","classified_at":"2026-10-09T19:28:20+00:00","page":"https://rirtracker.com/ip/199.85.255.0-199.85.255.255/#e-43d02548bd886dd4","evidence_url":"https://rirtracker.com/api/v1/events/43d02548bd886dd4.json","explanation":"ARIN's statistics show it reserved on 2026-05-17 and allocated (dated 2026-05-18) on 2026-05-19. ARIN removed its own pool record for this range as part of issuing it: the same report adds 199.85.255.0-199.85.255.255. The issuance is explained on that line.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2026-May/006366.html","retrieved_at":"2026-10-09T18:54:01+00:00","summary":"ARIN-Issued report for 2026-05-18: \"Remove 199.85.255.0-199.85.255.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260517","retrieved_at":"2026-10-09T19:01:28+00:00","summary":"ARIN delegated statistics 2026-05-17 (produced 2026-05-17T13:00:41+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260519","retrieved_at":"2026-10-09T19:01:34+00:00","summary":"ARIN delegated statistics 2026-05-19 (produced 2026-05-19T13:00:41+00:00), after the report: allocated (dated 2026-05-18)"}]},{"event_id":"1512298c0ca6137b","report_date":"2026-02-09","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"ipv4","resource":"199.85.255.0/24","start":"199.85.255.0","end":"199.85.255.255","classification":"REMOVED_REASON_UNKNOWN","classification_label":"Removed (return, revocation or reclamation not publicly distinguishable)","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"Possible future reissue candidate after hold","inventory_effect_code":"HOLD_CANDIDATE","provisional":false,"classifier_version":"1.0.0","classified_at":"2026-10-09T19:28:28+00:00","page":"https://rirtracker.com/ip/199.85.255.0-199.85.255.255/#e-1512298c0ca6137b","evidence_url":"https://rirtracker.com/api/v1/events/1512298c0ca6137b.json","hold":{"hold_rule_source_url":"https://www.arin.net/resources/guide/request/#reissuing-returned-revoked-and-reclaimed-resources","hold_rule_days":60,"estimated_hold_end":"2026-04-10","availability_statement":"Possible reissue candidate after this date; not confirmed available"},"explanation":"Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 2015-09-15) on 2026-02-08 and reserved on 2026-02-10. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 for 60 days before reissuing them, so the earliest estimated hold expiration is 2026-04-10. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260210","retrieved_at":"2026-10-09T18:56:25+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 199.85.255.0/24 allocated on 2026-02-09, reserved on 2026-02-10"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260208","retrieved_at":"2026-10-09T18:56:18+00:00","summary":"ARIN delegated statistics 2026-02-08 (produced 2026-02-08T14:00:50+00:00), before the report: allocated (dated 2015-09-15)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260210","retrieved_at":"2026-10-09T18:56:25+00:00","summary":"ARIN delegated statistics 2026-02-10 (produced 2026-02-10T14:00:51+00:00), after the report: reserved"}]}],"classification_history":{"20ecbf10725e2a00":[{"raw_change_id":2092,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.0.0","classified_at":"2026-10-09T19:28:20+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2026-05-17 and allocated (dated 2026-05-18) on 2026-05-19. The tracker saw this range removed from registration on 2026-02-09 (199.85.255.0/24), so it appears to have been issued again from ARIN's pool."}],"43d02548bd886dd4":[{"raw_change_id":2078,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.0.0","classified_at":"2026-10-09T19:28:20+00:00","current":1,"public_explanation":"ARIN's statistics show it reserved on 2026-05-17 and allocated (dated 2026-05-18) on 2026-05-19. ARIN removed its own pool record for this range as part of issuing it: the same report adds 199.85.255.0-199.85.255.255. The issuance is explained on that line."}],"1512298c0ca6137b":[{"raw_change_id":5981,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.0.0","classified_at":"2026-10-09T19:28:28+00:00","current":1,"public_explanation":"Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 2015-09-15) on 2026-02-08 and reserved on 2026-02-10. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 for 60 days before reissuing them, so the earliest estimated hold expiration is 2026-04-10. This does not confirm availability."}]}}