{"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":"216.234.140.0/22","resource_type":"ipv4","page":"https://rirtracker.com/ip/216.234.140.0-216.234.143.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2023-09-29)"},"current_holder":{"rir":"ARIN","org":null,"how":"ARIN's latest statistics"},"rdap_snapshots":[],"transfers":[],"events":[{"event_id":"e2065c41301bac7d","registry":"ARIN","report_date":"2023-09-29","source":"arin_issued","raw_action":"ADD","raw_line":"Add 216.234.140.0-216.234.143.255","resource_type":"ipv4","resource":"216.234.140.0/22","start":"216.234.140.0","end":"216.234.143.255","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 ARIN-controlled inventory","inventory_effect_code":"ISSUED","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:53:51+00:00","page":"https://rirtracker.com/ip/216.234.140.0-216.234.143.255/#e-e2065c41301bac7d","report_page":"https://rirtracker.com/arin/reports/2023-09-29/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/216.234.140.0-216.234.143.255.json","explanation":"No transfer record matches. ARIN's statistics show it reserved on 2023-09-28 and allocated (dated 2023-09-29) on 2023-09-30. The tracker saw this range removed from registration on 2022-11-07 (216.234.140.0/22), so it appears to have been issued again from ARIN's pool.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2023-September/005404.html","retrieved_at":"2026-10-12T18:42:19+00:00","summary":"ARIN-Issued report for 2023-09-29: \"Add 216.234.140.0-216.234.143.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2023/delegated-arin-extended-20230928.gz","retrieved_at":"2026-10-12T23:27:48+00:00","summary":"ARIN delegated statistics 2023-09-28 (produced 2023-09-28T13:00:12+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2023/delegated-arin-extended-20230930.gz","retrieved_at":"2026-10-12T23:27:53+00:00","summary":"ARIN delegated statistics 2023-09-30 (produced 2023-09-30T13:00:15+00:00), after the report: allocated (dated 2023-09-29)"}]},{"event_id":"5c949889ddadbedb","registry":"ARIN","report_date":"2023-09-29","source":"arin_issued","raw_action":"REMOVE","raw_line":"Remove 216.234.140.0-216.234.143.255","resource_type":"ipv4","resource":"216.234.140.0/22","start":"216.234.140.0","end":"216.234.143.255","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":"2026-10-13T23:53:50+00:00","page":"https://rirtracker.com/ip/216.234.140.0-216.234.143.255/#e-5c949889ddadbedb","report_page":"https://rirtracker.com/arin/reports/2023-09-29/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/216.234.140.0-216.234.143.255.json","explanation":"ARIN's statistics show it reserved on 2023-09-28 and allocated (dated 2023-09-29) on 2023-09-30. ARIN removed its own pool record for this range as part of issuing it: the same report adds 216.234.140.0-216.234.143.255. The issuance is explained on that line.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2023-September/005404.html","retrieved_at":"2026-10-12T18:42:19+00:00","summary":"ARIN-Issued report for 2023-09-29: \"Remove 216.234.140.0-216.234.143.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2023/delegated-arin-extended-20230928.gz","retrieved_at":"2026-10-12T23:27:48+00:00","summary":"ARIN delegated statistics 2023-09-28 (produced 2023-09-28T13:00:12+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2023/delegated-arin-extended-20230930.gz","retrieved_at":"2026-10-12T23:27:53+00:00","summary":"ARIN delegated statistics 2023-09-30 (produced 2023-09-30T13:00:15+00:00), after the report: allocated (dated 2023-09-29)"}]},{"event_id":"4c64f592e1921476","registry":"ARIN","report_date":"2022-11-07","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"ipv4","resource":"216.234.140.0/22","start":"216.234.140.0","end":"216.234.143.255","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":"2026-10-14T00:09:55+00:00","page":"https://rirtracker.com/ip/216.234.140.0-216.234.143.255/#e-4c64f592e1921476","report_page":"https://rirtracker.com/arin/reports/2022-11-07/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/216.234.140.0-216.234.143.255.json","observed":"216.234.140.0/22 allocated on 2022-11-07, reserved on 2022-11-08","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":"2023-01-06","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 2012-06-12) on 2022-11-06 and reserved on 2022-11-08. 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 2023-01-06. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2022/delegated-arin-extended-20221108.gz","retrieved_at":"2026-10-12T23:10:43+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 216.234.140.0/22 allocated on 2022-11-07, reserved on 2022-11-08"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2022/delegated-arin-extended-20221106.gz","retrieved_at":"2026-10-12T23:10:38+00:00","summary":"ARIN delegated statistics 2022-11-06 (produced 2022-11-06T14:00:11+00:00), before the report: allocated (dated 2012-06-12)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2022/delegated-arin-extended-20221108.gz","retrieved_at":"2026-10-12T23:10:43+00:00","summary":"ARIN delegated statistics 2022-11-08 (produced 2022-11-08T14:00:11+00:00), after the report: reserved"}]},{"event_id":"a40d4898fbf79d0d","registry":"ARIN","report_date":"2012-06-12","source":"arin_issued","raw_action":"ADD","raw_line":"Add 216.234.140.0-216.234.143.255","resource_type":"ipv4","resource":"216.234.140.0/22","start":"216.234.140.0","end":"216.234.143.255","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":"2026-10-13T23:50:59+00:00","page":"https://rirtracker.com/ip/216.234.140.0-216.234.143.255/#e-a40d4898fbf79d0d","report_page":"https://rirtracker.com/arin/reports/2012-06-12/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/216.234.140.0-216.234.143.255.json","explanation":"No transfer record matches. ARIN's statistics show it allocated (dated 2012-05-01) on 2012-06-11 and allocated (dated 2012-06-12) on 2012-06-13. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registration was replaced with one for a different holder record, and public sources don't say why (a transfer not yet logged, a return and reissue, or an organization record change).","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2012-June/001279.html","retrieved_at":"2026-10-12T18:37:33+00:00","summary":"ARIN-Issued report for 2012-06-12: \"Add 216.234.140.0-216.234.143.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2012/delegated-arin-20120611.gz","retrieved_at":"2026-10-12T19:44:11+00:00","summary":"ARIN delegated statistics 2012-06-11, before the report: allocated (dated 2012-05-01)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2012/delegated-arin-20120613.gz","retrieved_at":"2026-10-12T19:44:15+00:00","summary":"ARIN delegated statistics 2012-06-13, after the report: allocated (dated 2012-06-12)"}]}],"classification_history":{"e2065c41301bac7d":[{"raw_change_id":183642,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:00:07+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2023-09-28 and allocated (dated 2023-09-29) on 2023-09-30. The tracker saw this range removed from registration on 2022-11-07 (216.234.140.0/22), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":183642,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:07:33+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2023-09-28 and allocated (dated 2023-09-29) on 2023-09-30. The tracker saw this range removed from registration on 2022-11-07 (216.234.140.0/22), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":183642,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:50:24+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2023-09-28 and allocated (dated 2023-09-29) on 2023-09-30. The tracker saw this range removed from registration on 2022-11-07 (216.234.140.0/22), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":183642,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:53:51+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2023-09-28 and allocated (dated 2023-09-29) on 2023-09-30. The tracker saw this range removed from registration on 2022-11-07 (216.234.140.0/22), so it appears to have been issued again from ARIN's pool."}],"5c949889ddadbedb":[{"raw_change_id":183599,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:00:06+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2023-09-28 and allocated (dated 2023-09-29) on 2023-09-30. ARIN removed its own pool record for this range as part of issuing it: the same report adds 216.234.140.0-216.234.143.255. The issuance is explained on that line."},{"raw_change_id":183599,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:07:33+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2023-09-28 and allocated (dated 2023-09-29) on 2023-09-30. ARIN removed its own pool record for this range as part of issuing it: the same report adds 216.234.140.0-216.234.143.255. The issuance is explained on that line."},{"raw_change_id":183599,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:50:24+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2023-09-28 and allocated (dated 2023-09-29) on 2023-09-30. ARIN removed its own pool record for this range as part of issuing it: the same report adds 216.234.140.0-216.234.143.255. The issuance is explained on that line."},{"raw_change_id":183599,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:53:50+00:00","current":1,"public_explanation":"ARIN's statistics show it reserved on 2023-09-28 and allocated (dated 2023-09-29) on 2023-09-30. ARIN removed its own pool record for this range as part of issuing it: the same report adds 216.234.140.0-216.234.143.255. The issuance is explained on that line."}],"4c64f592e1921476":[{"raw_change_id":436398,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T05:54:45+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 2012-06-12) on 2022-11-06 and reserved on 2022-11-08. 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 2023-01-06. This does not confirm availability."},{"raw_change_id":436398,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:21:06+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 2012-06-12) on 2022-11-06 and reserved on 2022-11-08. 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 2023-01-06. This does not confirm availability."},{"raw_change_id":436398,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T15:05:03+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 2012-06-12) on 2022-11-06 and reserved on 2022-11-08. 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 2023-01-06. This does not confirm availability."},{"raw_change_id":436398,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:09:55+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 2012-06-12) on 2022-11-06 and reserved on 2022-11-08. 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 2023-01-06. This does not confirm availability."}],"a40d4898fbf79d0d":[{"raw_change_id":126413,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.0","classified_at":"2026-10-13T03:17:28+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it allocated (dated 2012-05-01) on 2012-06-11 and allocated (dated 2012-06-12) on 2012-06-13. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registration was replaced with one for a different holder record, and public sources don't say why (a transfer not yet logged, a return and reissue, or an organization record change)."},{"raw_change_id":126413,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.1","classified_at":"2026-10-13T08:05:24+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it allocated (dated 2012-05-01) on 2012-06-11 and allocated (dated 2012-06-12) on 2012-06-13. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registration was replaced with one for a different holder record, and public sources don't say why (a transfer not yet logged, a return and reissue, or an organization record change)."},{"raw_change_id":126413,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.2","classified_at":"2026-10-13T14:47:59+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it allocated (dated 2012-05-01) on 2012-06-11 and allocated (dated 2012-06-12) on 2012-06-13. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registration was replaced with one for a different holder record, and public sources don't say why (a transfer not yet logged, a return and reissue, or an organization record change)."},{"raw_change_id":126413,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.4.0","classified_at":"2026-10-13T23:50:59+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it allocated (dated 2012-05-01) on 2012-06-11 and allocated (dated 2012-06-12) on 2012-06-13. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registration was replaced with one for a different holder record, and public sources don't say why (a transfer not yet logged, a return and reissue, or an organization record change)."}]},"arin_statistics_now":{"status":"allocated (dated 2023-09-29)"}}