{"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":"163.142.0.0/16","resource_type":"ipv4","page":"https://rirtracker.com/ip/163.142.0.0-163.142.255.255/","statistics_now":{"registry":"APNIC","status":"allocated (dated 2011-03-30)"},"current_holder":{"rir":"APNIC","org":null,"how":"APNIC's latest statistics"},"rdap_snapshots":[],"transfers":[],"events":[{"event_id":"3e855e68a9e0491a","registry":"APNIC","report_date":"2011-03-30","source":"statistics","raw_action":"ADDED","raw_line":null,"resource_type":"ipv4","resource":"163.142.0.0/16","start":"163.142.0.0","end":"163.142.255.255","classification":"APPARENT_NEW_ISSUANCE","classification_label":"Apparent new issuance","confidence":"OBSERVED_ONLY","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":"2026-10-13T23:57:09+00:00","page":"https://rirtracker.com/ip/163.142.0.0-163.142.255.255/#e-3e855e68a9e0491a","report_page":"https://rirtracker.com/apnic/reports/2011-03-30/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/163.142.0.0-163.142.255.255.json","observed":"163.142.0.0/16 available on 2011-03-30, allocated on 2011-03-31","explanation":"No transfer record matches. APNIC's statistics show it available on 2011-03-30 and allocated (dated 2011-03-30) on 2011-03-31. It moved from APNIC's unissued pool to an active registration dated around that day, so it appears to be newly issued by APNIC. Another change to this range was reported the day before or after (2011-03-29: Released 163.142.0.0/16), so the before-and-after statistics may include it.","evidence":[{"type":"statistics_diff","url":"https://ftp.apnic.net/stats/apnic/2011/delegated-apnic-extended-20110331.gz","retrieved_at":"2026-10-12T19:36:11+00:00","summary":"Found by comparing APNIC's daily statistics: 163.142.0.0/16 available on 2011-03-30, allocated on 2011-03-31"},{"type":"delegated_before","url":"https://ftp.apnic.net/stats/apnic/2011/delegated-apnic-extended-20110330.gz","retrieved_at":"2026-10-12T19:36:08+00:00","summary":"APNIC delegated statistics 2011-03-30, before the change: available"},{"type":"delegated_after","url":"https://ftp.apnic.net/stats/apnic/2011/delegated-apnic-extended-20110331.gz","retrieved_at":"2026-10-12T19:36:11+00:00","summary":"APNIC delegated statistics 2011-03-31, after the change: allocated (dated 2011-03-30)"}]},{"event_id":"de9dbe97e0400bb7","registry":"APNIC","report_date":"2011-03-29","source":"statistics","raw_action":"RELEASED","raw_line":null,"resource_type":"ipv4","resource":"163.142.0.0/16","start":"163.142.0.0","end":"163.142.255.255","classification":"HOLD_RELEASED","classification_label":"Released from hold (APNIC lists it as 'available')","confidence":"OBSERVED_ONLY","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":"2026-10-13T23:57:09+00:00","page":"https://rirtracker.com/ip/163.142.0.0-163.142.255.255/#e-de9dbe97e0400bb7","report_page":"https://rirtracker.com/apnic/reports/2011-03-29/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/163.142.0.0-163.142.255.255.json","observed":"163.142.0.0/16 reserved on 2011-03-29, available on 2011-03-30","explanation":"APNIC's statistics show it reserved on 2011-03-29 and available on 2011-03-30. 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. Another change to this range was reported the day before or after (2011-03-30: Added 163.142.0.0/16), so the before-and-after statistics may include it.","evidence":[{"type":"statistics_diff","url":"https://ftp.apnic.net/stats/apnic/2011/delegated-apnic-extended-20110330.gz","retrieved_at":"2026-10-12T19:36:08+00:00","summary":"Found by comparing APNIC's daily statistics: 163.142.0.0/16 reserved on 2011-03-29, available on 2011-03-30"},{"type":"delegated_before","url":"https://ftp.apnic.net/stats/apnic/2011/delegated-apnic-extended-20110329.gz","retrieved_at":"2026-10-12T19:36:03+00:00","summary":"APNIC delegated statistics 2011-03-29, before the change: reserved"},{"type":"delegated_after","url":"https://ftp.apnic.net/stats/apnic/2011/delegated-apnic-extended-20110330.gz","retrieved_at":"2026-10-12T19:36:08+00:00","summary":"APNIC delegated statistics 2011-03-30, after the change: available"}]}],"classification_history":{"3e855e68a9e0491a":[{"raw_change_id":241369,"classification_code":"APPARENT_REISSUANCE","confidence":"OBSERVED_ONLY","classifier_version":"1.3.0","classified_at":"2026-10-13T04:26:10+00:00","current":0,"public_explanation":"No transfer record matches. APNIC's statistics show it available on 2011-03-30 and allocated (dated 2011-03-30) on 2011-03-31. The tracker saw this range released from hold on 2011-03-29 (163.142.0.0/16), so it appears to have been issued again from APNIC's pool. Another change to this range was reported the day before or after (2011-03-29: Released 163.142.0.0/16), so the before-and-after statistics may include it."},{"raw_change_id":241369,"classification_code":"APPARENT_REISSUANCE","confidence":"OBSERVED_ONLY","classifier_version":"1.3.1","classified_at":"2026-10-13T08:10:19+00:00","current":0,"public_explanation":"No transfer record matches. APNIC's statistics show it available on 2011-03-30 and allocated (dated 2011-03-30) on 2011-03-31. The tracker saw this range released from hold on 2011-03-29 (163.142.0.0/16), so it appears to have been issued again from APNIC's pool. Another change to this range was reported the day before or after (2011-03-29: Released 163.142.0.0/16), so the before-and-after statistics may include it."},{"raw_change_id":241369,"classification_code":"APPARENT_REISSUANCE","confidence":"OBSERVED_ONLY","classifier_version":"1.3.2","classified_at":"2026-10-13T14:53:26+00:00","current":0,"public_explanation":"No transfer record matches. APNIC's statistics show it available on 2011-03-30 and allocated (dated 2011-03-30) on 2011-03-31. The tracker saw this range released from hold on 2011-03-29 (163.142.0.0/16), so it appears to have been issued again from APNIC's pool. Another change to this range was reported the day before or after (2011-03-29: Released 163.142.0.0/16), so the before-and-after statistics may include it."},{"raw_change_id":241369,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"OBSERVED_ONLY","classifier_version":"1.4.0","classified_at":"2026-10-13T23:57:09+00:00","current":1,"public_explanation":"No transfer record matches. APNIC's statistics show it available on 2011-03-30 and allocated (dated 2011-03-30) on 2011-03-31. It moved from APNIC's unissued pool to an active registration dated around that day, so it appears to be newly issued by APNIC. Another change to this range was reported the day before or after (2011-03-29: Released 163.142.0.0/16), so the before-and-after statistics may include it."}],"de9dbe97e0400bb7":[{"raw_change_id":241339,"classification_code":"HOLD_RELEASED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.0","classified_at":"2026-10-13T04:26:09+00:00","current":0,"public_explanation":"APNIC's statistics show it reserved on 2011-03-29 and available on 2011-03-30. 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. Another change to this range was reported the day before or after (2011-03-30: Added 163.142.0.0/16), so the before-and-after statistics may include it."},{"raw_change_id":241339,"classification_code":"HOLD_RELEASED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.1","classified_at":"2026-10-13T08:10:19+00:00","current":0,"public_explanation":"APNIC's statistics show it reserved on 2011-03-29 and available on 2011-03-30. 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. Another change to this range was reported the day before or after (2011-03-30: Added 163.142.0.0/16), so the before-and-after statistics may include it."},{"raw_change_id":241339,"classification_code":"HOLD_RELEASED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.2","classified_at":"2026-10-13T14:53:26+00:00","current":0,"public_explanation":"APNIC's statistics show it reserved on 2011-03-29 and available on 2011-03-30. 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. Another change to this range was reported the day before or after (2011-03-30: Added 163.142.0.0/16), so the before-and-after statistics may include it."},{"raw_change_id":241339,"classification_code":"HOLD_RELEASED","confidence":"OBSERVED_ONLY","classifier_version":"1.4.0","classified_at":"2026-10-13T23:57:09+00:00","current":1,"public_explanation":"APNIC's statistics show it reserved on 2011-03-29 and available on 2011-03-30. 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. Another change to this range was reported the day before or after (2011-03-30: Added 163.142.0.0/16), so the before-and-after statistics may include it."}]},"arin_statistics_now":{"status":"not listed"}}