{"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":"203.170.89.0/24","resource_type":"ipv4","page":"https://rirtracker.com/ip/203.170.89.0-203.170.89.255/","statistics_now":{"registry":"APNIC","status":"allocated (dated 2016-02-29)"},"current_holder":{"rir":"APNIC","org":null,"how":"APNIC's latest statistics"},"rdap_snapshots":[],"transfers":[],"events":[{"event_id":"251b6b45cb2a0266","registry":"APNIC","report_date":"2012-05-02","source":"statistics","raw_action":"REMOVED","raw_line":null,"resource_type":"ipv4","resource":"203.170.89.0/24","start":"203.170.89.0","end":"203.170.89.255","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":"2026-10-13T23:58:10+00:00","page":"https://rirtracker.com/ip/203.170.89.0-203.170.89.255/#e-251b6b45cb2a0266","report_page":"https://rirtracker.com/apnic/reports/2012-05-02/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/203.170.89.0-203.170.89.255.json","observed":"203.170.89.0/24 assigned on 2012-05-02, reserved on 2012-05-03","explanation":"Removed from active registration. The tracker found it by comparing APNIC's daily statistics. APNIC's statistics show it assigned (dated 2008-04-03) on 2012-05-02 and reserved on 2012-05-03. 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-20120503.gz","retrieved_at":"2026-10-12T19:59:24+00:00","summary":"Found by comparing APNIC's daily statistics: 203.170.89.0/24 assigned on 2012-05-02, reserved on 2012-05-03"},{"type":"delegated_before","url":"https://ftp.apnic.net/stats/apnic/2012/delegated-apnic-extended-20120502.gz","retrieved_at":"2026-10-12T19:59:21+00:00","summary":"APNIC delegated statistics 2012-05-02, before the change: assigned (dated 2008-04-03)"},{"type":"delegated_after","url":"https://ftp.apnic.net/stats/apnic/2012/delegated-apnic-extended-20120503.gz","retrieved_at":"2026-10-12T19:59:24+00:00","summary":"APNIC delegated statistics 2012-05-03, after the change: reserved"}]},{"event_id":"5477df2977d03178","registry":"APNIC","report_date":"2008-04-03","source":"statistics","raw_action":"ADDED","raw_line":null,"resource_type":"ipv4","resource":"203.170.89.0/24","start":"203.170.89.0","end":"203.170.89.255","classification":"UNRESOLVED","classification_label":"Unresolved change","confidence":"OBSERVED_ONLY","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"Inventory effect unknown","inventory_effect_code":"UNKNOWN","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:51:37+00:00","page":"https://rirtracker.com/ip/203.170.89.0-203.170.89.255/#e-5477df2977d03178","report_page":"https://rirtracker.com/apnic/reports/2008-04-03/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/203.170.89.0-203.170.89.255.json","observed":"203.170.89.0/24 not listed on 2008-04-03, assigned on 2008-04-04","explanation":"No transfer record matches. APNIC's statistics show it not listed on 2008-04-03 and assigned (dated 2008-04-03) on 2008-04-04. It wasn't in APNIC's statistics before, so it wasn't APNIC's unissued inventory; it may have come from another registry in a transfer not yet in the log.","evidence":[{"type":"statistics_diff","url":"https://ftp.apnic.net/stats/apnic/2008/delegated-apnic-extended-20080404.gz","retrieved_at":"2026-10-12T18:38:45+00:00","summary":"Found by comparing APNIC's daily statistics: 203.170.89.0/24 not listed on 2008-04-03, assigned on 2008-04-04"},{"type":"delegated_before","url":"https://ftp.apnic.net/stats/apnic/2008/delegated-apnic-extended-20080403.gz","retrieved_at":"2026-10-12T18:38:42+00:00","summary":"APNIC delegated statistics 2008-04-03, before the change: not listed"},{"type":"delegated_after","url":"https://ftp.apnic.net/stats/apnic/2008/delegated-apnic-extended-20080404.gz","retrieved_at":"2026-10-12T18:38:45+00:00","summary":"APNIC delegated statistics 2008-04-04, after the change: assigned (dated 2008-04-03)"}]}],"classification_history":{"251b6b45cb2a0266":[{"raw_change_id":258706,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:35:10+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 2008-04-03) on 2012-05-02 and reserved on 2012-05-03. 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":258706,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:11:12+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 2008-04-03) on 2012-05-02 and reserved on 2012-05-03. 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":258706,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:54:24+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 2008-04-03) on 2012-05-02 and reserved on 2012-05-03. 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":258706,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:58:10+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 2008-04-03) on 2012-05-02 and reserved on 2012-05-03. 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."}],"5477df2977d03178":[{"raw_change_id":146052,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.0","classified_at":"2026-10-13T03:35:56+00:00","current":0,"public_explanation":"No transfer record matches. APNIC's statistics show it not listed on 2008-04-03 and assigned (dated 2008-04-03) on 2008-04-04. It wasn't in APNIC's statistics before, so it wasn't APNIC's unissued inventory; it may have come from another registry in a transfer not yet in the log."},{"raw_change_id":146052,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.1","classified_at":"2026-10-13T08:05:53+00:00","current":0,"public_explanation":"No transfer record matches. APNIC's statistics show it not listed on 2008-04-03 and assigned (dated 2008-04-03) on 2008-04-04. It wasn't in APNIC's statistics before, so it wasn't APNIC's unissued inventory; it may have come from another registry in a transfer not yet in the log."},{"raw_change_id":146052,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.2","classified_at":"2026-10-13T14:48:31+00:00","current":0,"public_explanation":"No transfer record matches. APNIC's statistics show it not listed on 2008-04-03 and assigned (dated 2008-04-03) on 2008-04-04. It wasn't in APNIC's statistics before, so it wasn't APNIC's unissued inventory; it may have come from another registry in a transfer not yet in the log."},{"raw_change_id":146052,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.4.0","classified_at":"2026-10-13T23:51:37+00:00","current":1,"public_explanation":"No transfer record matches. APNIC's statistics show it not listed on 2008-04-03 and assigned (dated 2008-04-03) on 2008-04-04. It wasn't in APNIC's statistics before, so it wasn't APNIC's unissued inventory; it may have come from another registry in a transfer not yet in the log."}]},"arin_statistics_now":{"status":"not listed"}}