{"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":"AS38221","resource_type":"asn","page":"https://rirtracker.com/asn/38221/","statistics_now":{"registry":"APNIC","status":"available"},"current_holder":{"rir":"APNIC","org":null,"how":"APNIC's latest statistics"},"rdap_snapshots":[],"transfers":[],"events":[{"event_id":"1e09030589639a78","registry":"APNIC","report_date":"2026-04-22","source":"statistics","raw_action":"RELEASED","raw_line":null,"resource_type":"asn","resource":"AS38221","start":38221,"end":38221,"classification":"HOLD_RELEASED","classification_label":"Released from hold (APNIC lists it as 'available')","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"APNIC's statistics now list it as 'available'; reissue not confirmed","inventory_effect_code":"RELEASED","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:46:07+00:00","page":"https://rirtracker.com/asn/38221/#e-1e09030589639a78","report_page":"https://rirtracker.com/apnic/reports/2026-04-22/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/38221.json","observed":"AS38221 reserved on 2026-04-22, available on 2026-04-23","explanation":"APNIC's statistics show it reserved on 2026-04-22 and available on 2026-04-23. APNIC moved it from its reserved (held) records to the status it calls 'available'. The tracker saw it removed from registration on 2025-04-22, 365 days earlier. That is APNIC's own label: whether and when it is reissued is not confirmed.","evidence":[{"type":"statistics_diff","url":"https://ftp.apnic.net/stats/apnic/2026/delegated-apnic-extended-20260423.gz","retrieved_at":"2026-10-12T16:21:34+00:00","summary":"Found by comparing APNIC's daily statistics: AS38221 reserved on 2026-04-22, available on 2026-04-23"},{"type":"delegated_before","url":"https://ftp.apnic.net/stats/apnic/2026/delegated-apnic-extended-20260422.gz","retrieved_at":"2026-10-12T16:21:31+00:00","summary":"APNIC delegated statistics 2026-04-22, before the change: reserved"},{"type":"delegated_after","url":"https://ftp.apnic.net/stats/apnic/2026/delegated-apnic-extended-20260423.gz","retrieved_at":"2026-10-12T16:21:34+00:00","summary":"APNIC delegated statistics 2026-04-23, after the change: available"}]},{"event_id":"0791e88eb2105412","registry":"APNIC","report_date":"2025-04-22","source":"statistics","raw_action":"REMOVED","raw_line":null,"resource_type":"asn","resource":"AS38221","start":38221,"end":38221,"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":"2026-10-14T00:17:55+00:00","page":"https://rirtracker.com/asn/38221/#e-0791e88eb2105412","report_page":"https://rirtracker.com/apnic/reports/2025-04-22/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/38221.json","observed":"AS38221 allocated on 2025-04-22, available on 2025-04-23","hold":{"hold_rule_source_url":"https://www.apnic.net/manage-ip/manage-resources/address-status","hold_rule_months":12,"estimated_hold_end":"2026-04-22","availability_statement":"Possible reissue candidate after this date; not confirmed available","hold_rule_observed":true},"explanation":"Removed from active registration. The tracker found it by comparing APNIC's daily statistics. APNIC's statistics show it allocated (dated 2021-03-26) on 2025-04-22 and available on 2025-04-23. Public sources do not distinguish a voluntary return, revocation, or reclamation. APNIC publishes no hold period, but its statistics have released returned ASNs a year after the removal or later since 2014, so the tracker estimates the hold ends on 2026-04-22. That is what APNIC has done, not a rule it states. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.apnic.net/stats/apnic/2025/delegated-apnic-extended-20250423.gz","retrieved_at":"2026-10-13T01:35:20+00:00","summary":"Found by comparing APNIC's daily statistics: AS38221 allocated on 2025-04-22, available on 2025-04-23"},{"type":"delegated_before","url":"https://ftp.apnic.net/stats/apnic/2025/delegated-apnic-extended-20250422.gz","retrieved_at":"2026-10-13T01:35:04+00:00","summary":"APNIC delegated statistics 2025-04-22, before the change: allocated (dated 2021-03-26)"},{"type":"delegated_after","url":"https://ftp.apnic.net/stats/apnic/2025/delegated-apnic-extended-20250423.gz","retrieved_at":"2026-10-13T01:35:20+00:00","summary":"APNIC delegated statistics 2025-04-23, after the change: available"}]},{"event_id":"67d8352a0163a31b","registry":"APNIC","report_date":"2021-03-26","source":"statistics","raw_action":"ADDED","raw_line":null,"resource_type":"asn","resource":"AS38221","start":38221,"end":38221,"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 APNIC-controlled inventory","inventory_effect_code":"ISSUED","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:12:02+00:00","page":"https://rirtracker.com/asn/38221/#e-67d8352a0163a31b","report_page":"https://rirtracker.com/apnic/reports/2021-03-26/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/38221.json","observed":"AS38221 available on 2021-03-26, allocated on 2021-03-27","explanation":"No transfer record matches. APNIC's statistics show it available on 2021-03-26 and allocated (dated 2021-03-26) on 2021-03-27. The tracker saw this range removed from registration on 2010-06-02 (AS38221), so it appears to have been issued again from APNIC's pool.","evidence":[{"type":"statistics_diff","url":"https://ftp.apnic.net/stats/apnic/2021/delegated-apnic-extended-20210327.gz","retrieved_at":"2026-10-12T23:41:06+00:00","summary":"Found by comparing APNIC's daily statistics: AS38221 available on 2021-03-26, allocated on 2021-03-27"},{"type":"delegated_before","url":"https://ftp.apnic.net/stats/apnic/2021/delegated-apnic-extended-20210326.gz","retrieved_at":"2026-10-12T23:41:03+00:00","summary":"APNIC delegated statistics 2021-03-26, before the change: available"},{"type":"delegated_after","url":"https://ftp.apnic.net/stats/apnic/2021/delegated-apnic-extended-20210327.gz","retrieved_at":"2026-10-12T23:41:06+00:00","summary":"APNIC delegated statistics 2021-03-27, after the change: allocated (dated 2021-03-26)"}]},{"event_id":"852ca947bbe04c6d","registry":"APNIC","report_date":"2010-06-02","source":"statistics","raw_action":"REMOVED","raw_line":null,"resource_type":"asn","resource":"AS38221","start":38221,"end":38221,"classification":"REMOVED_REASON_UNKNOWN","classification_label":"Removed (return, revocation or reclamation not publicly distinguishable)","confidence":"OBSERVED_ONLY","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":"2026-10-13T23:56:28+00:00","page":"https://rirtracker.com/asn/38221/#e-852ca947bbe04c6d","report_page":"https://rirtracker.com/apnic/reports/2010-06-02/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/38221.json","observed":"AS38221 allocated on 2010-06-02, not listed on 2010-06-03","explanation":"Removed from active registration. The tracker found it by comparing APNIC's daily statistics. APNIC's statistics show it allocated (dated 2008-02-01) on 2010-06-02 and not listed on 2010-06-03. Being gone from APNIC's statistics entirely can also mean it moved to another registry. Public sources do not distinguish a voluntary return, revocation, or reclamation. APNIC publishes no hold period, and its statistics show a steady one (a year) only for removals from 2014-07-01 on; this one came earlier, so the tracker gives no estimate. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.apnic.net/stats/apnic/2010/delegated-apnic-extended-20100603.gz","retrieved_at":"2026-10-12T19:19:28+00:00","summary":"Found by comparing APNIC's daily statistics: AS38221 allocated on 2010-06-02, not listed on 2010-06-03"},{"type":"delegated_before","url":"https://ftp.apnic.net/stats/apnic/2010/delegated-apnic-extended-20100602.gz","retrieved_at":"2026-10-12T19:19:25+00:00","summary":"APNIC delegated statistics 2010-06-02, before the change: allocated (dated 2008-02-01)"},{"type":"delegated_after","url":"https://ftp.apnic.net/stats/apnic/2010/delegated-apnic-extended-20100603.gz","retrieved_at":"2026-10-12T19:19:28+00:00","summary":"APNIC delegated statistics 2010-06-03, after the change: not listed"}]}],"classification_history":{"1e09030589639a78":[{"raw_change_id":24228,"classification_code":"HOLD_RELEASED","confidence":"STRONG_INFERENCE","classifier_version":"1.2.0","classified_at":"2026-10-12T17:43:16+00:00","current":0,"public_explanation":"APNIC's statistics show it reserved on 2026-04-22 and available on 2026-04-23. APNIC moved it from its reserved (held) records to the status it calls 'available'. That is APNIC's own label: whether and when it is reissued is not confirmed."},{"raw_change_id":24228,"classification_code":"HOLD_RELEASED","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-12T18:23:11+00:00","current":0,"public_explanation":"APNIC's statistics show it reserved on 2026-04-22 and available on 2026-04-23. APNIC moved it from its reserved (held) records to the status it calls 'available'. That is APNIC's own label: whether and when it is reissued is not confirmed."},{"raw_change_id":24228,"classification_code":"HOLD_RELEASED","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:01:28+00:00","current":0,"public_explanation":"APNIC's statistics show it reserved on 2026-04-22 and available on 2026-04-23. APNIC moved it from its reserved (held) records to the status it calls 'available'. The tracker saw it removed from registration on 2025-04-22, 365 days earlier. That is APNIC's own label: whether and when it is reissued is not confirmed."},{"raw_change_id":24228,"classification_code":"HOLD_RELEASED","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:43:34+00:00","current":0,"public_explanation":"APNIC's statistics show it reserved on 2026-04-22 and available on 2026-04-23. APNIC moved it from its reserved (held) records to the status it calls 'available'. The tracker saw it removed from registration on 2025-04-22, 365 days earlier. That is APNIC's own label: whether and when it is reissued is not confirmed."},{"raw_change_id":24228,"classification_code":"HOLD_RELEASED","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:46:07+00:00","current":1,"public_explanation":"APNIC's statistics show it reserved on 2026-04-22 and available on 2026-04-23. APNIC moved it from its reserved (held) records to the status it calls 'available'. The tracker saw it removed from registration on 2025-04-22, 365 days earlier. That is APNIC's own label: whether and when it is reissued is not confirmed."}],"0791e88eb2105412":[{"raw_change_id":540427,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T06:44:20+00:00","current":0,"public_explanation":"Removed from active registration. The tracker found it by comparing APNIC's daily statistics. APNIC's statistics show it allocated (dated 2021-03-26) on 2025-04-22 and available on 2025-04-23. Public sources do not distinguish a voluntary return, revocation, or reclamation. APNIC publishes no fixed period for which it holds returned ASNs before reissuing them, so the tracker gives no estimate. This does not confirm availability."},{"raw_change_id":540427,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:27:29+00:00","current":0,"public_explanation":"Removed from active registration. The tracker found it by comparing APNIC's daily statistics. APNIC's statistics show it allocated (dated 2021-03-26) on 2025-04-22 and available on 2025-04-23. Public sources do not distinguish a voluntary return, revocation, or reclamation. APNIC publishes no fixed period for which it holds returned ASNs before reissuing them, so the tracker gives no estimate. This does not confirm availability."},{"raw_change_id":540427,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T15:11:54+00:00","current":0,"public_explanation":"Removed from active registration. The tracker found it by comparing APNIC's daily statistics. APNIC's statistics show it allocated (dated 2021-03-26) on 2025-04-22 and available on 2025-04-23. Public sources do not distinguish a voluntary return, revocation, or reclamation. APNIC publishes no fixed period for which it holds returned ASNs before reissuing them, so the tracker gives no estimate. This does not confirm availability."},{"raw_change_id":540427,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:17:55+00:00","current":1,"public_explanation":"Removed from active registration. The tracker found it by comparing APNIC's daily statistics. APNIC's statistics show it allocated (dated 2021-03-26) on 2025-04-22 and available on 2025-04-23. Public sources do not distinguish a voluntary return, revocation, or reclamation. APNIC publishes no hold period, but its statistics have released returned ASNs a year after the removal or later since 2014, so the tracker estimates the hold ends on 2026-04-22. That is what APNIC has done, not a rule it states. This does not confirm availability."}],"67d8352a0163a31b":[{"raw_change_id":465954,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T06:08:07+00:00","current":0,"public_explanation":"No transfer record matches. APNIC's statistics show it available on 2021-03-26 and allocated (dated 2021-03-26) on 2021-03-27. The tracker saw this range removed from registration on 2010-06-02 (AS38221), so it appears to have been issued again from APNIC's pool."},{"raw_change_id":465954,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:22:47+00:00","current":0,"public_explanation":"No transfer record matches. APNIC's statistics show it available on 2021-03-26 and allocated (dated 2021-03-26) on 2021-03-27. The tracker saw this range removed from registration on 2010-06-02 (AS38221), so it appears to have been issued again from APNIC's pool."},{"raw_change_id":465954,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T15:06:52+00:00","current":0,"public_explanation":"No transfer record matches. APNIC's statistics show it available on 2021-03-26 and allocated (dated 2021-03-26) on 2021-03-27. The tracker saw this range removed from registration on 2010-06-02 (AS38221), so it appears to have been issued again from APNIC's pool."},{"raw_change_id":465954,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:12:02+00:00","current":1,"public_explanation":"No transfer record matches. APNIC's statistics show it available on 2021-03-26 and allocated (dated 2021-03-26) on 2021-03-27. The tracker saw this range removed from registration on 2010-06-02 (AS38221), so it appears to have been issued again from APNIC's pool."}],"852ca947bbe04c6d":[{"raw_change_id":228928,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"OBSERVED_ONLY","classifier_version":"1.3.0","classified_at":"2026-10-13T04:19:55+00:00","current":0,"public_explanation":"Removed from active registration. The tracker found it by comparing APNIC's daily statistics. APNIC's statistics show it allocated (dated 2008-02-01) on 2010-06-02 and not listed on 2010-06-03. Being gone from APNIC's statistics entirely can also mean it moved to another registry. Public sources do not distinguish a voluntary return, revocation, or reclamation. APNIC publishes no fixed period for which it holds returned ASNs before reissuing them, so the tracker gives no estimate. This does not confirm availability."},{"raw_change_id":228928,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"OBSERVED_ONLY","classifier_version":"1.3.1","classified_at":"2026-10-13T08:09:43+00:00","current":0,"public_explanation":"Removed from active registration. The tracker found it by comparing APNIC's daily statistics. APNIC's statistics show it allocated (dated 2008-02-01) on 2010-06-02 and not listed on 2010-06-03. Being gone from APNIC's statistics entirely can also mean it moved to another registry. Public sources do not distinguish a voluntary return, revocation, or reclamation. APNIC publishes no fixed period for which it holds returned ASNs before reissuing them, so the tracker gives no estimate. This does not confirm availability."},{"raw_change_id":228928,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"OBSERVED_ONLY","classifier_version":"1.3.2","classified_at":"2026-10-13T14:52:47+00:00","current":0,"public_explanation":"Removed from active registration. The tracker found it by comparing APNIC's daily statistics. APNIC's statistics show it allocated (dated 2008-02-01) on 2010-06-02 and not listed on 2010-06-03. Being gone from APNIC's statistics entirely can also mean it moved to another registry. Public sources do not distinguish a voluntary return, revocation, or reclamation. APNIC publishes no fixed period for which it holds returned ASNs before reissuing them, so the tracker gives no estimate. This does not confirm availability."},{"raw_change_id":228928,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"OBSERVED_ONLY","classifier_version":"1.4.0","classified_at":"2026-10-13T23:56:28+00:00","current":1,"public_explanation":"Removed from active registration. The tracker found it by comparing APNIC's daily statistics. APNIC's statistics show it allocated (dated 2008-02-01) on 2010-06-02 and not listed on 2010-06-03. Being gone from APNIC's statistics entirely can also mean it moved to another registry. Public sources do not distinguish a voluntary return, revocation, or reclamation. APNIC publishes no hold period, and its statistics show a steady one (a year) only for removals from 2014-07-01 on; this one came earlier, so the tracker gives no estimate. This does not confirm availability."}]},"arin_statistics_now":{"status":"not listed"}}