{"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":"AS11331","resource_type":"asn","page":"https://rirtracker.com/asn/11331/","statistics_now":{"registry":"ARIN","status":"reserved"},"current_holder":{"rir":"ARIN","org":null,"how":"ARIN's latest statistics"},"rdap_snapshots":[],"transfers":[],"events":[{"event_id":"8fb1a95f6afc75e2","registry":"ARIN","report_date":"2025-11-17","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"asn","resource":"AS11331","start":11331,"end":11331,"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":"1.4.0","classified_at":"2026-10-14T00:13:51+00:00","page":"https://rirtracker.com/asn/11331/#e-8fb1a95f6afc75e2","report_page":"https://rirtracker.com/arin/reports/2025-11-17/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/11331.json","observed":"AS11331 assigned on 2025-11-17, reserved on 2025-11-18","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":"2026-05-17","availability_statement":"Possible reissue candidate after this date; not confirmed available","released_sooner_since":"2024-07-01"},"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 2024-11-13) on 2025-11-16 and reserved on 2025-11-18. 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 estimated hold end is 2026-05-17. This does not confirm availability. Since mid-2024, ARIN has released many ASNs within two months, before the 6 calendar months were up, so the release can come sooner.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20251118.gz","retrieved_at":"2026-10-13T00:10:29+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: AS11331 assigned on 2025-11-17, reserved on 2025-11-18"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20251116.gz","retrieved_at":"2026-10-13T00:10:24+00:00","summary":"ARIN delegated statistics 2025-11-16 (produced 2025-11-16T14:00:48+00:00), before the report: assigned (dated 2024-11-13)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20251118.gz","retrieved_at":"2026-10-13T00:10:29+00:00","summary":"ARIN delegated statistics 2025-11-18 (produced 2025-11-18T14:00:48+00:00), after the report: reserved"}]},{"event_id":"9239f9406a01fe44","registry":"ARIN","report_date":"2024-11-13","source":"arin_issued","raw_action":"ADD","raw_line":"Add AS11331","resource_type":"asn","resource":"AS11331","start":11331,"end":11331,"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":"1.4.0","classified_at":"2026-10-13T23:54:15+00:00","page":"https://rirtracker.com/asn/11331/#e-9239f9406a01fe44","report_page":"https://rirtracker.com/arin/reports/2024-11-13/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/11331.json","explanation":"No transfer record matches. ARIN's statistics show it reserved on 2024-11-12 and assigned (dated 2024-11-13) on 2024-11-14. The tracker saw this range removed from registration on 2024-03-07 (AS11331), so it appears to have been issued again from ARIN's pool.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2024-November/005814.html","retrieved_at":"2026-10-12T18:42:48+00:00","summary":"ARIN-Issued report for 2024-11-13: \"Add AS11331\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20241112.gz","retrieved_at":"2026-10-12T23:49:46+00:00","summary":"ARIN delegated statistics 2024-11-12 (produced 2024-11-12T14:00:54+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20241114.gz","retrieved_at":"2026-10-12T23:49:51+00:00","summary":"ARIN delegated statistics 2024-11-14 (produced 2024-11-14T14:00:54+00:00), after the report: assigned (dated 2024-11-13)"}]},{"event_id":"b77dc45f402ee099","registry":"ARIN","report_date":"2024-11-13","source":"arin_issued","raw_action":"REMOVE","raw_line":"Remove AS11331","resource_type":"asn","resource":"AS11331","start":11331,"end":11331,"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":"2026-10-13T23:54:15+00:00","page":"https://rirtracker.com/asn/11331/#e-b77dc45f402ee099","report_page":"https://rirtracker.com/arin/reports/2024-11-13/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/11331.json","explanation":"ARIN's statistics show it reserved on 2024-11-12 and assigned (dated 2024-11-13) on 2024-11-14. ARIN removed its own pool record for this range as part of issuing it: the same report adds AS11331. The issuance is explained on that line.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2024-November/005814.html","retrieved_at":"2026-10-12T18:42:48+00:00","summary":"ARIN-Issued report for 2024-11-13: \"Remove AS11331\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20241112.gz","retrieved_at":"2026-10-12T23:49:46+00:00","summary":"ARIN delegated statistics 2024-11-12 (produced 2024-11-12T14:00:54+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20241114.gz","retrieved_at":"2026-10-12T23:49:51+00:00","summary":"ARIN delegated statistics 2024-11-14 (produced 2024-11-14T14:00:54+00:00), after the report: assigned (dated 2024-11-13)"}]},{"event_id":"3bf2149552caaf68","registry":"ARIN","report_date":"2024-03-07","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"asn","resource":"AS11331","start":11331,"end":11331,"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":"1.4.0","classified_at":"2026-10-14T00:11:45+00:00","page":"https://rirtracker.com/asn/11331/#e-3bf2149552caaf68","report_page":"https://rirtracker.com/arin/reports/2024-03-07/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/11331.json","observed":"AS11331 assigned on 2024-03-07, reserved on 2024-03-08","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":"2024-09-07","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 2005-10-31) on 2024-03-06 and reserved on 2024-03-08. 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 estimated hold end is 2024-09-07. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20240308.gz","retrieved_at":"2026-10-12T23:36:31+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: AS11331 assigned on 2024-03-07, reserved on 2024-03-08"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20240306.gz","retrieved_at":"2026-10-12T23:36:16+00:00","summary":"ARIN delegated statistics 2024-03-06 (produced 2024-03-06T14:00:45+00:00), before the report: assigned (dated 2005-10-31)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20240308.gz","retrieved_at":"2026-10-12T23:36:31+00:00","summary":"ARIN delegated statistics 2024-03-08 (produced 2024-03-08T14:00:44+00:00), after the report: reserved"}]}],"classification_history":{"8fb1a95f6afc75e2":[{"raw_change_id":488709,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T06:19:41+00:00","current":0,"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 2024-11-13) on 2025-11-16 and reserved on 2025-11-18. 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 2026-05-17. This does not confirm availability."},{"raw_change_id":488709,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:24:11+00:00","current":0,"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 2024-11-13) on 2025-11-16 and reserved on 2025-11-18. 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 2026-05-17. This does not confirm availability."},{"raw_change_id":488709,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T15:08:22+00:00","current":0,"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 2024-11-13) on 2025-11-16 and reserved on 2025-11-18. 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 2026-05-17. This does not confirm availability."},{"raw_change_id":488709,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:13:51+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 2024-11-13) on 2025-11-16 and reserved on 2025-11-18. 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 estimated hold end is 2026-05-17. This does not confirm availability. Since mid-2024, ARIN has released many ASNs within two months, before the 6 calendar months were up, so the release can come sooner."}],"9239f9406a01fe44":[{"raw_change_id":190308,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:03:54+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2024-11-12 and assigned (dated 2024-11-13) on 2024-11-14. The tracker saw this range removed from registration on 2024-03-07 (AS11331), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":190308,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:07:51+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2024-11-12 and assigned (dated 2024-11-13) on 2024-11-14. The tracker saw this range removed from registration on 2024-03-07 (AS11331), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":190308,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:50:44+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2024-11-12 and assigned (dated 2024-11-13) on 2024-11-14. The tracker saw this range removed from registration on 2024-03-07 (AS11331), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":190308,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:15+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2024-11-12 and assigned (dated 2024-11-13) on 2024-11-14. The tracker saw this range removed from registration on 2024-03-07 (AS11331), so it appears to have been issued again from ARIN's pool."}],"b77dc45f402ee099":[{"raw_change_id":190276,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:03:53+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2024-11-12 and assigned (dated 2024-11-13) on 2024-11-14. ARIN removed its own pool record for this range as part of issuing it: the same report adds AS11331. The issuance is explained on that line."},{"raw_change_id":190276,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:07:51+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2024-11-12 and assigned (dated 2024-11-13) on 2024-11-14. ARIN removed its own pool record for this range as part of issuing it: the same report adds AS11331. The issuance is explained on that line."},{"raw_change_id":190276,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:50:44+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2024-11-12 and assigned (dated 2024-11-13) on 2024-11-14. ARIN removed its own pool record for this range as part of issuing it: the same report adds AS11331. The issuance is explained on that line."},{"raw_change_id":190276,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:15+00:00","current":1,"public_explanation":"ARIN's statistics show it reserved on 2024-11-12 and assigned (dated 2024-11-13) on 2024-11-14. ARIN removed its own pool record for this range as part of issuing it: the same report adds AS11331. The issuance is explained on that line."}],"3bf2149552caaf68":[{"raw_change_id":462599,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T06:06:46+00:00","current":0,"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 2005-10-31) on 2024-03-06 and reserved on 2024-03-08. 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 2024-09-07. This does not confirm availability."},{"raw_change_id":462599,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:22:34+00:00","current":0,"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 2005-10-31) on 2024-03-06 and reserved on 2024-03-08. 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 2024-09-07. This does not confirm availability."},{"raw_change_id":462599,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T15:06:38+00:00","current":0,"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 2005-10-31) on 2024-03-06 and reserved on 2024-03-08. 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 2024-09-07. This does not confirm availability."},{"raw_change_id":462599,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:11:45+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 2005-10-31) on 2024-03-06 and reserved on 2024-03-08. 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 estimated hold end is 2024-09-07. This does not confirm availability."}]},"arin_statistics_now":{"status":"reserved"}}