{"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":"202.151.33.0/24","resource_type":"ipv4","page":"https://rirtracker.com/ip/202.151.33.0-202.151.33.255/","statistics_now":{"registry":"APNIC","status":"allocated (dated 2016-06-09)"},"current_holder":{"rir":"APNIC","org":null,"how":"APNIC's latest statistics"},"rdap_snapshots":[],"transfers":[],"events":[{"event_id":"031422d2ca404335","registry":"APNIC","report_date":"2016-06-09","source":"statistics","raw_action":"ADDED","raw_line":null,"resource_type":"ipv4","resource":"202.151.33.0/24","start":"202.151.33.0","end":"202.151.33.255","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":"2026-10-14T00:03:57+00:00","page":"https://rirtracker.com/ip/202.151.33.0-202.151.33.255/#e-031422d2ca404335","report_page":"https://rirtracker.com/apnic/reports/2016-06-09/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/202.151.33.0-202.151.33.255.json","observed":"202.151.33.0/24 available on 2016-06-09, allocated on 2016-06-10","explanation":"No transfer record matches. APNIC's statistics show it available on 2016-06-09 and allocated (dated 2016-06-09) on 2016-06-10. The tracker saw this range released from hold on 2015-10-28 (202.151.33.0/24), so it appears to have been issued again from APNIC's pool.","evidence":[{"type":"statistics_diff","url":"https://ftp.apnic.net/stats/apnic/2016/delegated-apnic-extended-20160610.gz","retrieved_at":"2026-10-12T21:41:07+00:00","summary":"Found by comparing APNIC's daily statistics: 202.151.33.0/24 available on 2016-06-09, allocated on 2016-06-10"},{"type":"delegated_before","url":"https://ftp.apnic.net/stats/apnic/2016/delegated-apnic-extended-20160609.gz","retrieved_at":"2026-10-12T21:41:04+00:00","summary":"APNIC delegated statistics 2016-06-09, before the change: available"},{"type":"delegated_after","url":"https://ftp.apnic.net/stats/apnic/2016/delegated-apnic-extended-20160610.gz","retrieved_at":"2026-10-12T21:41:07+00:00","summary":"APNIC delegated statistics 2016-06-10, after the change: allocated (dated 2016-06-09)"}]},{"event_id":"e5d50a890fc4bfdd","registry":"APNIC","report_date":"2015-10-28","source":"statistics","raw_action":"RELEASED","raw_line":null,"resource_type":"ipv4","resource":"202.151.33.0/24","start":"202.151.33.0","end":"202.151.33.255","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":"2026-10-14T00:02:58+00:00","page":"https://rirtracker.com/ip/202.151.33.0-202.151.33.255/#e-e5d50a890fc4bfdd","report_page":"https://rirtracker.com/apnic/reports/2015-10-28/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/202.151.33.0-202.151.33.255.json","observed":"202.151.33.0/24 reserved on 2015-10-28, available on 2015-10-29","explanation":"APNIC's statistics show it reserved on 2015-10-28 and available on 2015-10-29. APNIC moved it from its reserved (held) records to the status it calls 'available'. The tracker saw it removed from registration on 2012-11-13, 1079 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/2015/delegated-apnic-extended-20151029.gz","retrieved_at":"2026-10-12T21:26:44+00:00","summary":"Found by comparing APNIC's daily statistics: 202.151.33.0/24 reserved on 2015-10-28, available on 2015-10-29"},{"type":"delegated_before","url":"https://ftp.apnic.net/stats/apnic/2015/delegated-apnic-extended-20151028.gz","retrieved_at":"2026-10-12T21:26:41+00:00","summary":"APNIC delegated statistics 2015-10-28, before the change: reserved"},{"type":"delegated_after","url":"https://ftp.apnic.net/stats/apnic/2015/delegated-apnic-extended-20151029.gz","retrieved_at":"2026-10-12T21:26:44+00:00","summary":"APNIC delegated statistics 2015-10-29, after the change: available"}]},{"event_id":"cde901dac077df6a","registry":"APNIC","report_date":"2012-11-13","source":"statistics","raw_action":"REMOVED","raw_line":null,"resource_type":"ipv4","resource":"202.151.33.0/24","start":"202.151.33.0","end":"202.151.33.255","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":"2026-10-13T23:58:54+00:00","page":"https://rirtracker.com/ip/202.151.33.0-202.151.33.255/#e-cde901dac077df6a","report_page":"https://rirtracker.com/apnic/reports/2012-11-13/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/202.151.33.0-202.151.33.255.json","observed":"202.151.33.0/24 assigned on 2012-11-13, reserved on 2012-11-14","explanation":"Removed from active registration. The tracker found it by comparing APNIC's daily statistics. APNIC's statistics show it assigned (dated 2004-12-22) on 2012-11-13 and reserved on 2012-11-14. 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/2012/delegated-apnic-extended-20121114.gz","retrieved_at":"2026-10-12T20:11:08+00:00","summary":"Found by comparing APNIC's daily statistics: 202.151.33.0/24 assigned on 2012-11-13, reserved on 2012-11-14"},{"type":"delegated_before","url":"https://ftp.apnic.net/stats/apnic/2012/delegated-apnic-extended-20121113.gz","retrieved_at":"2026-10-12T20:11:05+00:00","summary":"APNIC delegated statistics 2012-11-13, before the change: assigned (dated 2004-12-22)"},{"type":"delegated_after","url":"https://ftp.apnic.net/stats/apnic/2012/delegated-apnic-extended-20121114.gz","retrieved_at":"2026-10-12T20:11:08+00:00","summary":"APNIC delegated statistics 2012-11-14, after the change: reserved"}]}],"classification_history":{"031422d2ca404335":[{"raw_change_id":348791,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T05:18:55+00:00","current":0,"public_explanation":"No transfer record matches. APNIC's statistics show it available on 2016-06-09 and allocated (dated 2016-06-09) on 2016-06-10. The tracker saw this range released from hold on 2015-10-28 (202.151.33.0/24), so it appears to have been issued again from APNIC's pool."},{"raw_change_id":348791,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:16:10+00:00","current":0,"public_explanation":"No transfer record matches. APNIC's statistics show it available on 2016-06-09 and allocated (dated 2016-06-09) on 2016-06-10. The tracker saw this range released from hold on 2015-10-28 (202.151.33.0/24), so it appears to have been issued again from APNIC's pool."},{"raw_change_id":348791,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:59:44+00:00","current":0,"public_explanation":"No transfer record matches. APNIC's statistics show it available on 2016-06-09 and allocated (dated 2016-06-09) on 2016-06-10. The tracker saw this range released from hold on 2015-10-28 (202.151.33.0/24), so it appears to have been issued again from APNIC's pool."},{"raw_change_id":348791,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:03:57+00:00","current":1,"public_explanation":"No transfer record matches. APNIC's statistics show it available on 2016-06-09 and allocated (dated 2016-06-09) on 2016-06-10. The tracker saw this range released from hold on 2015-10-28 (202.151.33.0/24), so it appears to have been issued again from APNIC's pool."}],"e5d50a890fc4bfdd":[{"raw_change_id":333240,"classification_code":"HOLD_RELEASED","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T05:11:09+00:00","current":0,"public_explanation":"APNIC's statistics show it reserved on 2015-10-28 and available on 2015-10-29. APNIC moved it from its reserved (held) records to the status it calls 'available'. The tracker saw it removed from registration on 2012-11-13, 1079 days earlier. That is APNIC's own label: whether and when it is reissued is not confirmed."},{"raw_change_id":333240,"classification_code":"HOLD_RELEASED","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:15:20+00:00","current":0,"public_explanation":"APNIC's statistics show it reserved on 2015-10-28 and available on 2015-10-29. APNIC moved it from its reserved (held) records to the status it calls 'available'. The tracker saw it removed from registration on 2012-11-13, 1079 days earlier. That is APNIC's own label: whether and when it is reissued is not confirmed."},{"raw_change_id":333240,"classification_code":"HOLD_RELEASED","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:58:51+00:00","current":0,"public_explanation":"APNIC's statistics show it reserved on 2015-10-28 and available on 2015-10-29. APNIC moved it from its reserved (held) records to the status it calls 'available'. The tracker saw it removed from registration on 2012-11-13, 1079 days earlier. That is APNIC's own label: whether and when it is reissued is not confirmed."},{"raw_change_id":333240,"classification_code":"HOLD_RELEASED","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:02:58+00:00","current":1,"public_explanation":"APNIC's statistics show it reserved on 2015-10-28 and available on 2015-10-29. APNIC moved it from its reserved (held) records to the status it calls 'available'. The tracker saw it removed from registration on 2012-11-13, 1079 days earlier. That is APNIC's own label: whether and when it is reissued is not confirmed."}],"cde901dac077df6a":[{"raw_change_id":270692,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:41:15+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 assigned (dated 2004-12-22) on 2012-11-13 and reserved on 2012-11-14. Public sources do not distinguish a voluntary return, revocation, or reclamation. APNIC publishes no fixed period for which it holds returned IPv4 space before reissuing it, so the tracker gives no estimate. This does not confirm availability."},{"raw_change_id":270692,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:11:51+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 assigned (dated 2004-12-22) on 2012-11-13 and reserved on 2012-11-14. Public sources do not distinguish a voluntary return, revocation, or reclamation. APNIC publishes no fixed period for which it holds returned IPv4 space before reissuing it, so the tracker gives no estimate. This does not confirm availability."},{"raw_change_id":270692,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:55:06+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 assigned (dated 2004-12-22) on 2012-11-13 and reserved on 2012-11-14. Public sources do not distinguish a voluntary return, revocation, or reclamation. APNIC publishes no fixed period for which it holds returned IPv4 space before reissuing it, so the tracker gives no estimate. This does not confirm availability."},{"raw_change_id":270692,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:58:54+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 assigned (dated 2004-12-22) on 2012-11-13 and reserved on 2012-11-14. 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"}}