{"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":"216.170.96.0/20","resource_type":"ipv4","page":"https://rirtracker.com/ip/216.170.96.0-216.170.111.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2022-04-08), allocated (dated 2022-04-11), allocated (dated 2022-04-25), allocated (dated 2023-10-10)"},"current_holder":{"rir":"ARIN","org":null,"how":"ARIN's latest statistics"},"rdap_snapshots":[],"transfers":[],"events":[{"event_id":"78fa0e1a02397cfe","registry":"ARIN","report_date":"2022-04-08","source":"arin_issued","raw_action":"REMOVE","raw_line":"Remove 216.170.96.0-216.170.111.255","resource_type":"ipv4","resource":"216.170.96.0/20","start":"216.170.96.0","end":"216.170.111.255","classification":"POOL_RECORD_CHANGE","classification_label":"Change to ARIN's own pool record","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"Part of the issuance reported the same day","inventory_effect_code":"PAIRED","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:53:22+00:00","page":"https://rirtracker.com/ip/216.170.96.0-216.170.111.255/#e-78fa0e1a02397cfe","report_page":"https://rirtracker.com/arin/reports/2022-04-08/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/216.170.96.0-216.170.111.255.json","explanation":"ARIN's statistics show it reserved on 2022-04-07 and allocated (dated 2022-04-08), available on 2022-04-09. ARIN removed its own pool record for this range as part of issuing it: the same report adds 216.170.96.0-216.170.99.255. The issuance is explained on that line.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2022-April/004865.html","retrieved_at":"2026-10-12T18:41:43+00:00","summary":"ARIN-Issued report for 2022-04-08: \"Remove 216.170.96.0-216.170.111.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2022/delegated-arin-extended-20220407.gz","retrieved_at":"2026-10-12T22:59:28+00:00","summary":"ARIN delegated statistics 2022-04-07 (produced 2022-04-07T13:00:11+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2022/delegated-arin-extended-20220409.gz","retrieved_at":"2026-10-12T22:59:41+00:00","summary":"ARIN delegated statistics 2022-04-09 (produced 2022-04-09T13:00:10+00:00), after the report: allocated (dated 2022-04-08), available"}]},{"event_id":"879c2f2eb666a664","registry":"ARIN","report_date":"2013-05-06","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"ipv4","resource":"216.170.96.0/20","start":"216.170.96.0","end":"216.170.111.255","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":"2026-10-13T23:58:07+00:00","page":"https://rirtracker.com/ip/216.170.96.0-216.170.111.255/#e-879c2f2eb666a664","report_page":"https://rirtracker.com/arin/reports/2013-05-06/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/216.170.96.0-216.170.111.255.json","observed":"216.170.96.0/20 allocated on 2013-05-06, reserved on 2013-05-07","hold":{"hold_rule_source_url":"https://www.arin.net/resources/guide/request/#reissuing-returned-revoked-and-reclaimed-resources","hold_rule_days":60,"estimated_hold_end":"2013-07-05","availability_statement":"Possible reissue candidate after this date; not confirmed available"},"explanation":"Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 2002-06-21) on 2013-05-05 and reserved on 2013-05-07. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 space for 60 days before reissuing it, so the estimated hold end is 2013-07-05. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2013/delegated-arin-extended-20130507.gz","retrieved_at":"2026-10-12T19:58:27+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 216.170.96.0/20 allocated on 2013-05-06, reserved on 2013-05-07"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2013/delegated-arin-extended-20130505.gz","retrieved_at":"2026-10-12T19:58:22+00:00","summary":"ARIN delegated statistics 2013-05-05 (produced 2013-05-05T05:06:14+00:00), before the report: allocated (dated 2002-06-21)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2013/delegated-arin-extended-20130507.gz","retrieved_at":"2026-10-12T19:58:27+00:00","summary":"ARIN delegated statistics 2013-05-07 (produced 2013-05-07T05:05:12+00:00), after the report: reserved"}]},{"event_id":"f19f885cea9a7b1f","registry":"ARIN","report_date":"2011-12-21","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"ipv4","resource":"216.170.96.0/20","start":"216.170.96.0","end":"216.170.111.255","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":"2026-10-13T23:56:52+00:00","page":"https://rirtracker.com/ip/216.170.96.0-216.170.111.255/#e-f19f885cea9a7b1f","report_page":"https://rirtracker.com/arin/reports/2011-12-21/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/216.170.96.0-216.170.111.255.json","observed":"216.170.96.0/20 allocated on 2011-12-21, not listed on 2011-12-22","hold":{"hold_rule_source_url":"https://www.arin.net/resources/guide/request/#reissuing-returned-revoked-and-reclaimed-resources","hold_rule_days":60,"estimated_hold_end":"2012-02-19","availability_statement":"Possible reissue candidate after this date; not confirmed available"},"explanation":"Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 2002-06-21) on 2011-12-20 and not issued on 2011-12-22. (Until 2013-03-05, ARIN's statistics list only what's issued.) Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 space for 60 days before reissuing it, so the estimated hold end is 2012-02-19. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2011/delegated-arin-20111222.gz","retrieved_at":"2026-10-12T19:29:18+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 216.170.96.0/20 allocated on 2011-12-21, not listed on 2011-12-22"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2011/delegated-arin-20111220.gz","retrieved_at":"2026-10-12T19:29:13+00:00","summary":"ARIN delegated statistics 2011-12-20, before the report: allocated (dated 2002-06-21)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2011/delegated-arin-20111222.gz","retrieved_at":"2026-10-12T19:29:18+00:00","summary":"ARIN delegated statistics 2011-12-22, after the report: not issued"}]}],"classification_history":{"78fa0e1a02397cfe":[{"raw_change_id":175901,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:55:35+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2022-04-07 and allocated (dated 2022-04-08), available on 2022-04-09. ARIN removed its own pool record for this range as part of issuing it: the same report adds 216.170.96.0-216.170.99.255. The issuance is explained on that line."},{"raw_change_id":175901,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:07:12+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2022-04-07 and allocated (dated 2022-04-08), available on 2022-04-09. ARIN removed its own pool record for this range as part of issuing it: the same report adds 216.170.96.0-216.170.99.255. The issuance is explained on that line."},{"raw_change_id":175901,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:50:00+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2022-04-07 and allocated (dated 2022-04-08), available on 2022-04-09. ARIN removed its own pool record for this range as part of issuing it: the same report adds 216.170.96.0-216.170.99.255. The issuance is explained on that line."},{"raw_change_id":175901,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:53:22+00:00","current":1,"public_explanation":"ARIN's statistics show it reserved on 2022-04-07 and allocated (dated 2022-04-08), available on 2022-04-09. ARIN removed its own pool record for this range as part of issuing it: the same report adds 216.170.96.0-216.170.99.255. The issuance is explained on that line."}],"879c2f2eb666a664":[{"raw_change_id":257882,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:34:46+00:00","current":0,"public_explanation":"Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 2002-06-21) on 2013-05-05 and reserved on 2013-05-07. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 space for 60 days before reissuing it, so the earliest estimated hold expiration is 2013-07-05. This does not confirm availability."},{"raw_change_id":257882,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:11:10+00:00","current":0,"public_explanation":"Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 2002-06-21) on 2013-05-05 and reserved on 2013-05-07. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 space for 60 days before reissuing it, so the earliest estimated hold expiration is 2013-07-05. This does not confirm availability."},{"raw_change_id":257882,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:54:21+00:00","current":0,"public_explanation":"Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 2002-06-21) on 2013-05-05 and reserved on 2013-05-07. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 space for 60 days before reissuing it, so the earliest estimated hold expiration is 2013-07-05. This does not confirm availability."},{"raw_change_id":257882,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:58:07+00:00","current":1,"public_explanation":"Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 2002-06-21) on 2013-05-05 and reserved on 2013-05-07. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 space for 60 days before reissuing it, so the estimated hold end is 2013-07-05. This does not confirm availability."}],"f19f885cea9a7b1f":[{"raw_change_id":235733,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:22:41+00:00","current":0,"public_explanation":"Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 2002-06-21) on 2011-12-20 and not issued on 2011-12-22. (Until 2013-03-05, ARIN's statistics list only what's issued.) Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 space for 60 days before reissuing it, so the earliest estimated hold expiration is 2012-02-19. This does not confirm availability."},{"raw_change_id":235733,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:10:04+00:00","current":0,"public_explanation":"Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 2002-06-21) on 2011-12-20 and not issued on 2011-12-22. (Until 2013-03-05, ARIN's statistics list only what's issued.) Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 space for 60 days before reissuing it, so the earliest estimated hold expiration is 2012-02-19. This does not confirm availability."},{"raw_change_id":235733,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:53:09+00:00","current":0,"public_explanation":"Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 2002-06-21) on 2011-12-20 and not issued on 2011-12-22. (Until 2013-03-05, ARIN's statistics list only what's issued.) Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 space for 60 days before reissuing it, so the earliest estimated hold expiration is 2012-02-19. This does not confirm availability."},{"raw_change_id":235733,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:56:52+00:00","current":1,"public_explanation":"Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 2002-06-21) on 2011-12-20 and not issued on 2011-12-22. (Until 2013-03-05, ARIN's statistics list only what's issued.) Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 space for 60 days before reissuing it, so the estimated hold end is 2012-02-19. This does not confirm availability."}]},"arin_statistics_now":{"status":"allocated (dated 2022-04-08), allocated (dated 2022-04-11), allocated (dated 2022-04-25), allocated (dated 2023-10-10)"}}