{"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":"AS10153","resource_type":"asn","page":"https://rirtracker.com/asn/10153/","statistics_now":{"registry":"APNIC","status":"allocated (dated 2020-12-15)"},"current_holder":{"rir":"APNIC","org":null,"how":"APNIC's latest statistics"},"rdap_snapshots":[],"transfers":[],"events":[{"event_id":"aed98b62bc3fa3e5","registry":"APNIC","report_date":"2020-12-15","source":"statistics","raw_action":"ADDED","raw_line":null,"resource_type":"asn","resource":"AS10153","start":10153,"end":10153,"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":"2026-10-14T00:11:34+00:00","page":"https://rirtracker.com/asn/10153/#e-aed98b62bc3fa3e5","report_page":"https://rirtracker.com/apnic/reports/2020-12-15/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/10153.json","observed":"AS10153 available on 2020-12-15, allocated on 2020-12-16","explanation":"No transfer record matches. APNIC's statistics show it available on 2020-12-15 and allocated (dated 2020-12-15) on 2020-12-16. The tracker saw this range removed from registration on 2019-12-11 (AS10153), so it appears to have been issued again from APNIC's pool.","evidence":[{"type":"statistics_diff","url":"https://ftp.apnic.net/stats/apnic/2020/delegated-apnic-extended-20201216.gz","retrieved_at":"2026-10-12T23:34:03+00:00","summary":"Found by comparing APNIC's daily statistics: AS10153 available on 2020-12-15, allocated on 2020-12-16"},{"type":"delegated_before","url":"https://ftp.apnic.net/stats/apnic/2020/delegated-apnic-extended-20201215.gz","retrieved_at":"2026-10-12T23:33:59+00:00","summary":"APNIC delegated statistics 2020-12-15, before the change: available"},{"type":"delegated_after","url":"https://ftp.apnic.net/stats/apnic/2020/delegated-apnic-extended-20201216.gz","retrieved_at":"2026-10-12T23:34:03+00:00","summary":"APNIC delegated statistics 2020-12-16, after the change: allocated (dated 2020-12-15)"}]},{"event_id":"c48a26ba6a92953e","registry":"APNIC","report_date":"2019-12-11","source":"statistics","raw_action":"REMOVED","raw_line":null,"resource_type":"asn","resource":"AS10153","start":10153,"end":10153,"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":"2026-10-14T00:09:45+00:00","page":"https://rirtracker.com/asn/10153/#e-c48a26ba6a92953e","report_page":"https://rirtracker.com/apnic/reports/2019-12-11/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/10153.json","observed":"AS10153 allocated on 2019-12-11, available on 2019-12-12","hold":{"hold_rule_source_url":"https://www.apnic.net/manage-ip/manage-resources/address-status","hold_rule_months":12,"estimated_hold_end":"2020-12-11","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 2000-09-01) on 2019-12-11 and available on 2019-12-12. 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 2020-12-11. 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/2019/delegated-apnic-extended-20191212.gz","retrieved_at":"2026-10-12T23:08:15+00:00","summary":"Found by comparing APNIC's daily statistics: AS10153 allocated on 2019-12-11, available on 2019-12-12"},{"type":"delegated_before","url":"https://ftp.apnic.net/stats/apnic/2019/delegated-apnic-extended-20191211.gz","retrieved_at":"2026-10-12T23:08:12+00:00","summary":"APNIC delegated statistics 2019-12-11, before the change: allocated (dated 2000-09-01)"},{"type":"delegated_after","url":"https://ftp.apnic.net/stats/apnic/2019/delegated-apnic-extended-20191212.gz","retrieved_at":"2026-10-12T23:08:15+00:00","summary":"APNIC delegated statistics 2019-12-12, after the change: available"}]}],"classification_history":{"aed98b62bc3fa3e5":[{"raw_change_id":460579,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T06:05:57+00:00","current":0,"public_explanation":"No transfer record matches. APNIC's statistics show it available on 2020-12-15 and allocated (dated 2020-12-15) on 2020-12-16. The tracker saw this range removed from registration on 2019-12-11 (AS10153), so it appears to have been issued again from APNIC's pool."},{"raw_change_id":460579,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:22:25+00:00","current":0,"public_explanation":"No transfer record matches. APNIC's statistics show it available on 2020-12-15 and allocated (dated 2020-12-15) on 2020-12-16. The tracker saw this range removed from registration on 2019-12-11 (AS10153), so it appears to have been issued again from APNIC's pool."},{"raw_change_id":460579,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T15:06:29+00:00","current":0,"public_explanation":"No transfer record matches. APNIC's statistics show it available on 2020-12-15 and allocated (dated 2020-12-15) on 2020-12-16. The tracker saw this range removed from registration on 2019-12-11 (AS10153), so it appears to have been issued again from APNIC's pool."},{"raw_change_id":460579,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:11:34+00:00","current":1,"public_explanation":"No transfer record matches. APNIC's statistics show it available on 2020-12-15 and allocated (dated 2020-12-15) on 2020-12-16. The tracker saw this range removed from registration on 2019-12-11 (AS10153), so it appears to have been issued again from APNIC's pool."}],"c48a26ba6a92953e":[{"raw_change_id":434127,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T05:53:52+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 2000-09-01) on 2019-12-11 and available on 2019-12-12. 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":434127,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:20:57+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 2000-09-01) on 2019-12-11 and available on 2019-12-12. 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":434127,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T15:04:54+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 2000-09-01) on 2019-12-11 and available on 2019-12-12. 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":434127,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:09:45+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 2000-09-01) on 2019-12-11 and available on 2019-12-12. 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 2020-12-11. That is what APNIC has done, not a rule it states. This does not confirm availability."}]},"arin_statistics_now":{"status":"not listed"}}