{"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":"AS17561","resource_type":"asn","page":"https://rirtracker.com/asn/17561/","statistics_now":{"registry":"APNIC","status":"allocated (dated 2024-06-06)"},"current_holder":{"rir":"APNIC","org":null,"how":"APNIC's latest statistics"},"rdap_snapshots":[],"transfers":[],"events":[{"event_id":"bced932891dc581c","registry":"APNIC","report_date":"2024-06-06","source":"statistics","raw_action":"ADDED","raw_line":null,"resource_type":"asn","resource":"AS17561","start":17561,"end":17561,"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":"2026-10-14T00:17:09+00:00","page":"https://rirtracker.com/asn/17561/#e-bced932891dc581c","report_page":"https://rirtracker.com/apnic/reports/2024-06-06/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/17561.json","observed":"AS17561 available on 2024-06-06, allocated on 2024-06-07","explanation":"No transfer record matches. APNIC's statistics show it available on 2024-06-06 and allocated (dated 2024-06-06) on 2024-06-07. The tracker saw this range removed from registration on 2022-06-07 (AS17561), so it appears to have been issued again from APNIC's pool.","evidence":[{"type":"statistics_diff","url":"https://ftp.apnic.net/stats/apnic/2024/delegated-apnic-extended-20240607.gz","retrieved_at":"2026-10-13T01:10:46+00:00","summary":"Found by comparing APNIC's daily statistics: AS17561 available on 2024-06-06, allocated on 2024-06-07"},{"type":"delegated_before","url":"https://ftp.apnic.net/stats/apnic/2024/delegated-apnic-extended-20240606.gz","retrieved_at":"2026-10-13T01:10:42+00:00","summary":"APNIC delegated statistics 2024-06-06, before the change: available"},{"type":"delegated_after","url":"https://ftp.apnic.net/stats/apnic/2024/delegated-apnic-extended-20240607.gz","retrieved_at":"2026-10-13T01:10:46+00:00","summary":"APNIC delegated statistics 2024-06-07, after the change: allocated (dated 2024-06-06)"}]},{"event_id":"38e7f665be73d90c","registry":"APNIC","report_date":"2022-06-07","source":"statistics","raw_action":"REMOVED","raw_line":null,"resource_type":"asn","resource":"AS17561","start":17561,"end":17561,"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":"2026-10-14T00:14:02+00:00","page":"https://rirtracker.com/asn/17561/#e-38e7f665be73d90c","report_page":"https://rirtracker.com/apnic/reports/2022-06-07/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/17561.json","observed":"AS17561 allocated on 2022-06-07, available on 2022-06-08","hold":{"hold_rule_source_url":"https://www.apnic.net/manage-ip/manage-resources/address-status","hold_rule_months":12,"estimated_hold_end":"2023-06-07","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 2001-01-11) on 2022-06-07 and available on 2022-06-08. 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 2023-06-07. 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/2022/delegated-apnic-extended-20220608.gz","retrieved_at":"2026-10-13T00:14:20+00:00","summary":"Found by comparing APNIC's daily statistics: AS17561 allocated on 2022-06-07, available on 2022-06-08"},{"type":"delegated_before","url":"https://ftp.apnic.net/stats/apnic/2022/delegated-apnic-extended-20220607.gz","retrieved_at":"2026-10-13T00:14:04+00:00","summary":"APNIC delegated statistics 2022-06-07, before the change: allocated (dated 2001-01-11)"},{"type":"delegated_after","url":"https://ftp.apnic.net/stats/apnic/2022/delegated-apnic-extended-20220608.gz","retrieved_at":"2026-10-13T00:14:20+00:00","summary":"APNIC delegated statistics 2022-06-08, after the change: available"}]}],"classification_history":{"bced932891dc581c":[{"raw_change_id":529202,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T06:38:20+00:00","current":0,"public_explanation":"No transfer record matches. APNIC's statistics show it available on 2024-06-06 and allocated (dated 2024-06-06) on 2024-06-07. The tracker saw this range removed from registration on 2022-06-07 (AS17561), so it appears to have been issued again from APNIC's pool."},{"raw_change_id":529202,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:26:53+00:00","current":0,"public_explanation":"No transfer record matches. APNIC's statistics show it available on 2024-06-06 and allocated (dated 2024-06-06) on 2024-06-07. The tracker saw this range removed from registration on 2022-06-07 (AS17561), so it appears to have been issued again from APNIC's pool."},{"raw_change_id":529202,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T15:11:15+00:00","current":0,"public_explanation":"No transfer record matches. APNIC's statistics show it available on 2024-06-06 and allocated (dated 2024-06-06) on 2024-06-07. The tracker saw this range removed from registration on 2022-06-07 (AS17561), so it appears to have been issued again from APNIC's pool."},{"raw_change_id":529202,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:17:09+00:00","current":1,"public_explanation":"No transfer record matches. APNIC's statistics show it available on 2024-06-06 and allocated (dated 2024-06-06) on 2024-06-07. The tracker saw this range removed from registration on 2022-06-07 (AS17561), so it appears to have been issued again from APNIC's pool."}],"38e7f665be73d90c":[{"raw_change_id":491363,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T06:20:49+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 2001-01-11) on 2022-06-07 and available on 2022-06-08. 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":491363,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:24:21+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 2001-01-11) on 2022-06-07 and available on 2022-06-08. 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":491363,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T15:08:32+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 2001-01-11) on 2022-06-07 and available on 2022-06-08. 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":491363,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:14:02+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 2001-01-11) on 2022-06-07 and available on 2022-06-08. 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 2023-06-07. That is what APNIC has done, not a rule it states. This does not confirm availability."}]},"arin_statistics_now":{"status":"not listed"}}