{"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":"172.110.200.0/22","resource_type":"ipv4","page":"https://rirtracker.com/ip/172.110.200.0-172.110.203.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2019-07-15)"},"current_holder":{"rir":"ARIN","org":null,"how":"ARIN's latest statistics"},"rdap_snapshots":[],"transfers":[],"events":[{"event_id":"775b2e9131188959","registry":"ARIN","report_date":"2019-07-15","source":"arin_issued","raw_action":"ADD","raw_line":"Add 172.110.200.0-172.110.203.255","resource_type":"ipv4","resource":"172.110.200.0/22","start":"172.110.200.0","end":"172.110.203.255","classification":"APPARENT_NEW_ISSUANCE","classification_label":"Apparent new issuance","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":"2026-10-13T23:52:33+00:00","page":"https://rirtracker.com/ip/172.110.200.0-172.110.203.255/#e-775b2e9131188959","report_page":"https://rirtracker.com/arin/reports/2019-07-15/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/172.110.200.0-172.110.203.255.json","explanation":"No transfer record matches. ARIN's statistics show it reserved on 2019-07-14 and allocated (dated 2019-07-15) on 2019-07-16. It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2019-July/003869.html","retrieved_at":"2026-10-12T18:40:33+00:00","summary":"ARIN-Issued report for 2019-07-15: \"Add 172.110.200.0-172.110.203.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2019/delegated-arin-extended-20190714.gz","retrieved_at":"2026-10-12T22:08:00+00:00","summary":"ARIN delegated statistics 2019-07-14 (produced 2019-07-14T14:00:13+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2019/delegated-arin-extended-20190716.gz","retrieved_at":"2026-10-12T22:08:05+00:00","summary":"ARIN delegated statistics 2019-07-16 (produced 2019-07-16T14:00:13+00:00), after the report: allocated (dated 2019-07-15)"}]},{"event_id":"910c1b7b83cee7e4","registry":"ARIN","report_date":"2019-07-15","source":"arin_issued","raw_action":"REMOVE","raw_line":"Remove 172.110.200.0-172.110.203.255","resource_type":"ipv4","resource":"172.110.200.0/22","start":"172.110.200.0","end":"172.110.203.255","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":"2026-10-13T23:52:33+00:00","page":"https://rirtracker.com/ip/172.110.200.0-172.110.203.255/#e-910c1b7b83cee7e4","report_page":"https://rirtracker.com/arin/reports/2019-07-15/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/172.110.200.0-172.110.203.255.json","explanation":"ARIN's statistics show it reserved on 2019-07-14 and allocated (dated 2019-07-15) on 2019-07-16. ARIN removed its own pool record for this range as part of issuing it: the same report adds 172.110.200.0-172.110.203.255. The issuance is explained on that line.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2019-July/003869.html","retrieved_at":"2026-10-12T18:40:33+00:00","summary":"ARIN-Issued report for 2019-07-15: \"Remove 172.110.200.0-172.110.203.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2019/delegated-arin-extended-20190714.gz","retrieved_at":"2026-10-12T22:08:00+00:00","summary":"ARIN delegated statistics 2019-07-14 (produced 2019-07-14T14:00:13+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2019/delegated-arin-extended-20190716.gz","retrieved_at":"2026-10-12T22:08:05+00:00","summary":"ARIN delegated statistics 2019-07-16 (produced 2019-07-16T14:00:13+00:00), after the report: allocated (dated 2019-07-15)"}]},{"event_id":"d0ef27617d1ed1f9","registry":"ARIN","report_date":"2019-07-11","source":"arin_issued","raw_action":"REMOVE","raw_line":"Remove 172.110.200.0-172.110.203.255","resource_type":"ipv4","resource":"172.110.200.0/22","start":"172.110.200.0","end":"172.110.203.255","classification":"NO_MATERIAL_CHANGE","classification_label":"No substantive resource change found","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:52:32+00:00","page":"https://rirtracker.com/ip/172.110.200.0-172.110.203.255/#e-d0ef27617d1ed1f9","report_page":"https://rirtracker.com/arin/reports/2019-07-11/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/172.110.200.0-172.110.203.255.json","explanation":"ARIN-Issued lists it as \"Remove\", but ARIN's statistics show the same record before and after (reserved).","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2019-July/003865.html","retrieved_at":"2026-10-12T18:40:33+00:00","summary":"ARIN-Issued report for 2019-07-11: \"Remove 172.110.200.0-172.110.203.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2019/delegated-arin-extended-20190710.gz","retrieved_at":"2026-10-12T22:07:51+00:00","summary":"ARIN delegated statistics 2019-07-10 (produced 2019-07-10T14:00:17+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2019/delegated-arin-extended-20190712.gz","retrieved_at":"2026-10-12T22:07:56+00:00","summary":"ARIN delegated statistics 2019-07-12 (produced 2019-07-12T14:00:16+00:00), after the report: reserved"}]},{"event_id":"da11287c1c11f0ed","registry":"ARIN","report_date":"2019-01-14","source":"arin_issued","raw_action":"REMOVE","raw_line":"Remove 172.110.200.0-172.110.203.255","resource_type":"ipv4","resource":"172.110.200.0/22","start":"172.110.200.0","end":"172.110.203.255","classification":"NO_MATERIAL_CHANGE","classification_label":"No substantive resource change found","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:52:24+00:00","page":"https://rirtracker.com/ip/172.110.200.0-172.110.203.255/#e-da11287c1c11f0ed","report_page":"https://rirtracker.com/arin/reports/2019-01-14/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/172.110.200.0-172.110.203.255.json","explanation":"ARIN-Issued lists it as \"Remove\", but ARIN's statistics show the same record before and after (reserved).","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2019-January/003687.html","retrieved_at":"2026-10-12T18:40:20+00:00","summary":"ARIN-Issued report for 2019-01-14: \"Remove 172.110.200.0-172.110.203.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2019/delegated-arin-extended-20190113.gz","retrieved_at":"2026-10-12T21:58:39+00:00","summary":"ARIN delegated statistics 2019-01-13 (produced 2019-01-13T06:00:12+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2019/delegated-arin-extended-20190115.gz","retrieved_at":"2026-10-12T21:58:44+00:00","summary":"ARIN delegated statistics 2019-01-15 (produced 2019-01-15T06:00:11+00:00), after the report: reserved"}]},{"event_id":"b279f7d571e69f68","registry":"ARIN","report_date":"2015-06-25","source":"arin_issued","raw_action":"ADD","raw_line":"Add 172.110.200.0-172.110.203.255","resource_type":"ipv4","resource":"172.110.200.0/22","start":"172.110.200.0","end":"172.110.203.255","classification":"APPARENT_NEW_ISSUANCE","classification_label":"Apparent new issuance","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":"2026-10-13T23:51:24+00:00","page":"https://rirtracker.com/ip/172.110.200.0-172.110.203.255/#e-b279f7d571e69f68","report_page":"https://rirtracker.com/arin/reports/2015-06-25/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/172.110.200.0-172.110.203.255.json","explanation":"No transfer record matches. ARIN's statistics show it available on 2015-06-24 and allocated (dated 2015-06-25) on 2015-06-26. It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2015-June/002387.html","retrieved_at":"2026-10-12T18:38:49+00:00","summary":"ARIN-Issued report for 2015-06-25: \"Add 172.110.200.0-172.110.203.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2015/delegated-arin-extended-20150624.gz","retrieved_at":"2026-10-12T20:54:34+00:00","summary":"ARIN delegated statistics 2015-06-24 (produced 2015-06-24T05:05:23+00:00), before the report: available"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2015/delegated-arin-extended-20150626.gz","retrieved_at":"2026-10-12T20:54:45+00:00","summary":"ARIN delegated statistics 2015-06-26 (produced 2015-06-26T05:04:55+00:00), after the report: allocated (dated 2015-06-25)"}]}],"classification_history":{"775b2e9131188959":[{"raw_change_id":160504,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:44:54+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2019-07-14 and allocated (dated 2019-07-15) on 2019-07-16. The tracker saw this range released from hold on 2019-07-11 (172.110.200.0-172.110.203.255), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":160504,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:06:35+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2019-07-14 and allocated (dated 2019-07-15) on 2019-07-16. The tracker saw this range released from hold on 2019-07-11 (172.110.200.0-172.110.203.255), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":160504,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:49:18+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2019-07-14 and allocated (dated 2019-07-15) on 2019-07-16. The tracker saw this range released from hold on 2019-07-11 (172.110.200.0-172.110.203.255), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":160504,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:52:33+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2019-07-14 and allocated (dated 2019-07-15) on 2019-07-16. It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN."}],"910c1b7b83cee7e4":[{"raw_change_id":160481,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:44:53+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2019-07-14 and allocated (dated 2019-07-15) on 2019-07-16. ARIN removed its own pool record for this range as part of issuing it: the same report adds 172.110.200.0-172.110.203.255. The issuance is explained on that line."},{"raw_change_id":160481,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:06:35+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2019-07-14 and allocated (dated 2019-07-15) on 2019-07-16. ARIN removed its own pool record for this range as part of issuing it: the same report adds 172.110.200.0-172.110.203.255. The issuance is explained on that line."},{"raw_change_id":160481,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:49:18+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2019-07-14 and allocated (dated 2019-07-15) on 2019-07-16. ARIN removed its own pool record for this range as part of issuing it: the same report adds 172.110.200.0-172.110.203.255. The issuance is explained on that line."},{"raw_change_id":160481,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:52:33+00:00","current":1,"public_explanation":"ARIN's statistics show it reserved on 2019-07-14 and allocated (dated 2019-07-15) on 2019-07-16. ARIN removed its own pool record for this range as part of issuing it: the same report adds 172.110.200.0-172.110.203.255. The issuance is explained on that line."}],"d0ef27617d1ed1f9":[{"raw_change_id":160289,"classification_code":"NO_MATERIAL_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:44:43+00:00","current":0,"public_explanation":"ARIN-Issued lists it as \"Remove\", but ARIN's statistics show the same record before and after (reserved)."},{"raw_change_id":160289,"classification_code":"NO_MATERIAL_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:06:34+00:00","current":0,"public_explanation":"ARIN-Issued lists it as \"Remove\", but ARIN's statistics show the same record before and after (reserved)."},{"raw_change_id":160289,"classification_code":"NO_MATERIAL_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:49:18+00:00","current":0,"public_explanation":"ARIN-Issued lists it as \"Remove\", but ARIN's statistics show the same record before and after (reserved)."},{"raw_change_id":160289,"classification_code":"NO_MATERIAL_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:52:32+00:00","current":1,"public_explanation":"ARIN-Issued lists it as \"Remove\", but ARIN's statistics show the same record before and after (reserved)."}],"da11287c1c11f0ed":[{"raw_change_id":158093,"classification_code":"NO_MATERIAL_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:43:19+00:00","current":0,"public_explanation":"ARIN-Issued lists it as \"Remove\", but ARIN's statistics show the same record before and after (reserved)."},{"raw_change_id":158093,"classification_code":"NO_MATERIAL_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:06:28+00:00","current":0,"public_explanation":"ARIN-Issued lists it as \"Remove\", but ARIN's statistics show the same record before and after (reserved)."},{"raw_change_id":158093,"classification_code":"NO_MATERIAL_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:49:10+00:00","current":0,"public_explanation":"ARIN-Issued lists it as \"Remove\", but ARIN's statistics show the same record before and after (reserved)."},{"raw_change_id":158093,"classification_code":"NO_MATERIAL_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:52:24+00:00","current":1,"public_explanation":"ARIN-Issued lists it as \"Remove\", but ARIN's statistics show the same record before and after (reserved)."}],"b279f7d571e69f68":[{"raw_change_id":138047,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:32:00+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2015-06-24 and allocated (dated 2015-06-25) on 2015-06-26. The tracker saw this range released from hold on 2011-06-06 (69.57.208.0-216.250.127.255), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":138047,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:05:43+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2015-06-24 and allocated (dated 2015-06-25) on 2015-06-26. The tracker saw this range released from hold on 2011-06-06 (69.57.208.0-216.250.127.255), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":138047,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:48:20+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2015-06-24 and allocated (dated 2015-06-25) on 2015-06-26. It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN."},{"raw_change_id":138047,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:51:24+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2015-06-24 and allocated (dated 2015-06-25) on 2015-06-26. It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN."}]},"arin_statistics_now":{"status":"allocated (dated 2019-07-15)"}}