{"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":"AS401144","resource_type":"asn","page":"https://rirtracker.com/asn/401144/","arin_statistics_now":{"file_date":"2026-10-09","status":"assigned (dated 2026-09-22)"},"current_holder":{"rir":"ARIN","org":null,"how":"ARIN's statistics for 2026-10-09"},"rdap_snapshots":[],"transfers":[],"events":[{"event_id":"6fc894b7bdf310f5","report_date":"2026-09-22","source":"arin_issued","raw_action":"ADD","raw_line":"Add AS401144","resource_type":"asn","resource":"AS401144","start":401144,"end":401144,"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":"2026-10-09T19:28:24+00:00","page":"https://rirtracker.com/asn/401144/#e-6fc894b7bdf310f5","evidence_url":"https://rirtracker.com/api/v1/events/6fc894b7bdf310f5.json","explanation":"No transfer record matches. ARIN's statistics show it available on 2026-09-21 and assigned (dated 2026-09-22) on 2026-09-23. The tracker saw this range released from hold on 2026-09-08 (AS401144), 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-September/006496.html","retrieved_at":"2026-10-09T18:54:09+00:00","summary":"ARIN-Issued report for 2026-09-22: \"Add AS401144\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260921","retrieved_at":"2026-10-09T19:07:59+00:00","summary":"ARIN delegated statistics 2026-09-21 (produced 2026-09-21T13:00:20+00:00), before the report: available"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260923","retrieved_at":"2026-10-09T19:08:05+00:00","summary":"ARIN delegated statistics 2026-09-23 (produced 2026-09-23T13:00:21+00:00), after the report: assigned (dated 2026-09-22)"}]},{"event_id":"e5bdbfd2f76300b5","report_date":"2026-09-08","source":"arin_issued","raw_action":"REMOVE","raw_line":"Remove AS401144","resource_type":"asn","resource":"AS401144","start":401144,"end":401144,"classification":"HOLD_RELEASED","classification_label":"Released from hold (ARIN lists it as 'available')","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"ARIN's statistics now list it as 'available'; reissue not confirmed","inventory_effect_code":"RELEASED","provisional":false,"classifier_version":"1.0.0","classified_at":"2026-10-09T19:28:24+00:00","page":"https://rirtracker.com/asn/401144/#e-e5bdbfd2f76300b5","evidence_url":"https://rirtracker.com/api/v1/events/e5bdbfd2f76300b5.json","explanation":"ARIN's statistics show it reserved on 2026-09-07 and available on 2026-09-09. ARIN took it out of its reserved (held) records; its statistics now give it the status 'available'. The tracker saw it removed from registration on 2026-06-12, 88 days earlier. That is ARIN's own label: whether and when it is reissued is not confirmed.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2026-September/006482.html","retrieved_at":"2026-10-09T18:54:09+00:00","summary":"ARIN-Issued report for 2026-09-08: \"Remove AS401144\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260907","retrieved_at":"2026-10-09T19:07:16+00:00","summary":"ARIN delegated statistics 2026-09-07 (produced 2026-09-07T13:00:21+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260909","retrieved_at":"2026-10-09T19:07:22+00:00","summary":"ARIN delegated statistics 2026-09-09 (produced 2026-09-09T13:00:20+00:00), after the report: available"}]},{"event_id":"82e65c97aab30a61","report_date":"2026-06-12","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"asn","resource":"AS401144","start":401144,"end":401144,"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":"2026-10-09T19:28:30+00:00","page":"https://rirtracker.com/asn/401144/#e-82e65c97aab30a61","evidence_url":"https://rirtracker.com/api/v1/events/82e65c97aab30a61.json","hold":{"hold_rule_source_url":"https://www.arin.net/resources/guide/request/#reissuing-returned-revoked-and-reclaimed-resources","hold_rule_months":6,"estimated_hold_end":"2026-12-12","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 assigned (dated 2024-06-07) on 2026-06-11 and reserved on 2026-06-13. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed ASNs for 6 calendar months before reissuing them, so the earliest estimated hold expiration is 2026-12-12. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260613","retrieved_at":"2026-10-09T19:02:49+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: AS401144 assigned on 2026-06-12, reserved on 2026-06-13"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260611","retrieved_at":"2026-10-09T19:02:42+00:00","summary":"ARIN delegated statistics 2026-06-11 (produced 2026-06-11T09:00:21+00:00), before the report: assigned (dated 2024-06-07)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260613","retrieved_at":"2026-10-09T19:02:49+00:00","summary":"ARIN delegated statistics 2026-06-13 (produced 2026-06-13T09:00:20+00:00), after the report: reserved"}]}],"classification_history":{"6fc894b7bdf310f5":[{"raw_change_id":4635,"classification_code":"APPARENT_REISSUANCE","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 available on 2026-09-21 and assigned (dated 2026-09-22) on 2026-09-23. The tracker saw this range released from hold on 2026-09-08 (AS401144), so it appears to have been issued again from ARIN's pool."}],"e5bdbfd2f76300b5":[{"raw_change_id":4479,"classification_code":"HOLD_RELEASED","confidence":"STRONG_INFERENCE","classifier_version":"1.0.0","classified_at":"2026-10-09T19:28:24+00:00","current":1,"public_explanation":"ARIN's statistics show it reserved on 2026-09-07 and available on 2026-09-09. ARIN took it out of its reserved (held) records; its statistics now give it the status 'available'. The tracker saw it removed from registration on 2026-06-12, 88 days earlier. That is ARIN's own label: whether and when it is reissued is not confirmed."}],"82e65c97aab30a61":[{"raw_change_id":6866,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.0.0","classified_at":"2026-10-09T19:28:30+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 assigned (dated 2024-06-07) on 2026-06-11 and reserved on 2026-06-13. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed ASNs for 6 calendar months before reissuing them, so the earliest estimated hold expiration is 2026-12-12. This does not confirm availability."}]}}