{"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":"66.212.56.0/22","resource_type":"ipv4","page":"https://rirtracker.com/ip/66.212.56.0-66.212.59.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2017-02-23)"},"current_holder":{"rir":"ARIN","org":null,"how":"ARIN's latest statistics"},"rdap_snapshots":[],"transfers":[],"events":[{"event_id":"e67f9c6a301bea71","registry":"ARIN","report_date":"2017-02-23","source":"arin_issued","raw_action":"ADD","raw_line":"Add 66.212.56.0-66.212.59.255","resource_type":"ipv4","resource":"66.212.56.0/22","start":"66.212.56.0","end":"66.212.59.255","classification":"APPARENT_REISSUANCE","classification_label":"Apparent reissuance of previously removed resource","confidence":"OBSERVED_ONLY","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":"2026-10-13T23:51:43+00:00","page":"https://rirtracker.com/ip/66.212.56.0-66.212.59.255/#e-e67f9c6a301bea71","report_page":"https://rirtracker.com/arin/reports/2017-02-23/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/66.212.56.0-66.212.59.255.json","explanation":"No transfer record matches. ARIN's statistics show it reserved on 2017-02-22 and allocated (dated 2017-02-23) on 2017-02-24. The tracker saw this range released from hold on 2017-02-22 (66.212.56.0-66.212.59.255), so it appears to have been issued again from ARIN's pool. Another change to this range was reported the day before or after (2017-02-22: Remove 66.212.56.0-66.212.59.255), so the before-and-after statistics may include it.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2017-February/002996.html","retrieved_at":"2026-10-12T18:39:31+00:00","summary":"ARIN-Issued report for 2017-02-23: \"Add 66.212.56.0-66.212.59.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20170222.gz","retrieved_at":"2026-10-12T21:24:04+00:00","summary":"ARIN delegated statistics 2017-02-22 (produced 2017-02-22T06:09:53+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20170224.gz","retrieved_at":"2026-10-12T21:24:09+00:00","summary":"ARIN delegated statistics 2017-02-24 (produced 2017-02-24T06:10:15+00:00), after the report: allocated (dated 2017-02-23)"}]},{"event_id":"15171a3f7ffeb386","registry":"ARIN","report_date":"2017-02-23","source":"arin_issued","raw_action":"REMOVE","raw_line":"Remove 66.212.56.0-66.212.59.255","resource_type":"ipv4","resource":"66.212.56.0/22","start":"66.212.56.0","end":"66.212.59.255","classification":"POOL_RECORD_CHANGE","classification_label":"Change to ARIN's own pool record","confidence":"OBSERVED_ONLY","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":"2026-10-13T23:51:43+00:00","page":"https://rirtracker.com/ip/66.212.56.0-66.212.59.255/#e-15171a3f7ffeb386","report_page":"https://rirtracker.com/arin/reports/2017-02-23/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/66.212.56.0-66.212.59.255.json","explanation":"ARIN's statistics show it reserved on 2017-02-22 and allocated (dated 2017-02-23) on 2017-02-24. ARIN removed its own pool record for this range as part of issuing it: the same report adds 66.212.56.0-66.212.59.255. The issuance is explained on that line. Another change to this range was reported the day before or after (2017-02-22: Remove 66.212.56.0-66.212.59.255), so the before-and-after statistics may include it.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2017-February/002996.html","retrieved_at":"2026-10-12T18:39:31+00:00","summary":"ARIN-Issued report for 2017-02-23: \"Remove 66.212.56.0-66.212.59.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20170222.gz","retrieved_at":"2026-10-12T21:24:04+00:00","summary":"ARIN delegated statistics 2017-02-22 (produced 2017-02-22T06:09:53+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20170224.gz","retrieved_at":"2026-10-12T21:24:09+00:00","summary":"ARIN delegated statistics 2017-02-24 (produced 2017-02-24T06:10:15+00:00), after the report: allocated (dated 2017-02-23)"}]},{"event_id":"1a6e83ecb9193a3f","registry":"ARIN","report_date":"2017-02-22","source":"arin_issued","raw_action":"REMOVE","raw_line":"Remove 66.212.56.0-66.212.59.255","resource_type":"ipv4","resource":"66.212.56.0/22","start":"66.212.56.0","end":"66.212.59.255","classification":"NO_MATERIAL_CHANGE","classification_label":"No substantive resource change found","confidence":"OBSERVED_ONLY","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":"2026-10-13T23:51:43+00:00","page":"https://rirtracker.com/ip/66.212.56.0-66.212.59.255/#e-1a6e83ecb9193a3f","report_page":"https://rirtracker.com/arin/reports/2017-02-22/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/66.212.56.0-66.212.59.255.json","explanation":"ARIN-Issued lists it as \"Remove\", but ARIN's statistics show the same record before and after (reserved). Another change to this range was reported the day before or after (2017-02-23: Remove 66.212.56.0-66.212.59.255; 2017-02-23: Add 66.212.56.0-66.212.59.255), so the before-and-after statistics may include it.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2017-February/002995.html","retrieved_at":"2026-10-12T18:39:31+00:00","summary":"ARIN-Issued report for 2017-02-22: \"Remove 66.212.56.0-66.212.59.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20170221.gz","retrieved_at":"2026-10-12T21:24:01+00:00","summary":"ARIN delegated statistics 2017-02-21 (produced 2017-02-21T06:09:35+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20170223.gz","retrieved_at":"2026-10-12T21:24:06+00:00","summary":"ARIN delegated statistics 2017-02-23 (produced 2017-02-23T06:09:03+00:00), after the report: reserved"}]}],"classification_history":{"e67f9c6a301bea71":[{"raw_change_id":148012,"classification_code":"APPARENT_REISSUANCE","confidence":"OBSERVED_ONLY","classifier_version":"1.3.0","classified_at":"2026-10-13T03:37:19+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2017-02-22 and allocated (dated 2017-02-23) on 2017-02-24. The tracker saw this range released from hold on 2017-02-22 (66.212.56.0-66.212.59.255), so it appears to have been issued again from ARIN's pool. Another change to this range was reported the day before or after (2017-02-22: Remove 66.212.56.0-66.212.59.255), so the before-and-after statistics may include it."},{"raw_change_id":148012,"classification_code":"APPARENT_REISSUANCE","confidence":"OBSERVED_ONLY","classifier_version":"1.3.1","classified_at":"2026-10-13T08:05:58+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2017-02-22 and allocated (dated 2017-02-23) on 2017-02-24. The tracker saw this range released from hold on 2017-02-22 (66.212.56.0-66.212.59.255), so it appears to have been issued again from ARIN's pool. Another change to this range was reported the day before or after (2017-02-22: Remove 66.212.56.0-66.212.59.255), so the before-and-after statistics may include it."},{"raw_change_id":148012,"classification_code":"APPARENT_REISSUANCE","confidence":"OBSERVED_ONLY","classifier_version":"1.3.2","classified_at":"2026-10-13T14:48:37+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2017-02-22 and allocated (dated 2017-02-23) on 2017-02-24. The tracker saw this range released from hold on 2017-02-22 (66.212.56.0-66.212.59.255), so it appears to have been issued again from ARIN's pool. Another change to this range was reported the day before or after (2017-02-22: Remove 66.212.56.0-66.212.59.255), so the before-and-after statistics may include it."},{"raw_change_id":148012,"classification_code":"APPARENT_REISSUANCE","confidence":"OBSERVED_ONLY","classifier_version":"1.4.0","classified_at":"2026-10-13T23:51:43+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2017-02-22 and allocated (dated 2017-02-23) on 2017-02-24. The tracker saw this range released from hold on 2017-02-22 (66.212.56.0-66.212.59.255), so it appears to have been issued again from ARIN's pool. Another change to this range was reported the day before or after (2017-02-22: Remove 66.212.56.0-66.212.59.255), so the before-and-after statistics may include it."}],"15171a3f7ffeb386":[{"raw_change_id":148004,"classification_code":"POOL_RECORD_CHANGE","confidence":"OBSERVED_ONLY","classifier_version":"1.3.0","classified_at":"2026-10-13T03:37:18+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2017-02-22 and allocated (dated 2017-02-23) on 2017-02-24. ARIN removed its own pool record for this range as part of issuing it: the same report adds 66.212.56.0-66.212.59.255. The issuance is explained on that line. Another change to this range was reported the day before or after (2017-02-22: Remove 66.212.56.0-66.212.59.255), so the before-and-after statistics may include it."},{"raw_change_id":148004,"classification_code":"POOL_RECORD_CHANGE","confidence":"OBSERVED_ONLY","classifier_version":"1.3.1","classified_at":"2026-10-13T08:05:58+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2017-02-22 and allocated (dated 2017-02-23) on 2017-02-24. ARIN removed its own pool record for this range as part of issuing it: the same report adds 66.212.56.0-66.212.59.255. The issuance is explained on that line. Another change to this range was reported the day before or after (2017-02-22: Remove 66.212.56.0-66.212.59.255), so the before-and-after statistics may include it."},{"raw_change_id":148004,"classification_code":"POOL_RECORD_CHANGE","confidence":"OBSERVED_ONLY","classifier_version":"1.3.2","classified_at":"2026-10-13T14:48:37+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2017-02-22 and allocated (dated 2017-02-23) on 2017-02-24. ARIN removed its own pool record for this range as part of issuing it: the same report adds 66.212.56.0-66.212.59.255. The issuance is explained on that line. Another change to this range was reported the day before or after (2017-02-22: Remove 66.212.56.0-66.212.59.255), so the before-and-after statistics may include it."},{"raw_change_id":148004,"classification_code":"POOL_RECORD_CHANGE","confidence":"OBSERVED_ONLY","classifier_version":"1.4.0","classified_at":"2026-10-13T23:51:43+00:00","current":1,"public_explanation":"ARIN's statistics show it reserved on 2017-02-22 and allocated (dated 2017-02-23) on 2017-02-24. ARIN removed its own pool record for this range as part of issuing it: the same report adds 66.212.56.0-66.212.59.255. The issuance is explained on that line. Another change to this range was reported the day before or after (2017-02-22: Remove 66.212.56.0-66.212.59.255), so the before-and-after statistics may include it."}],"1a6e83ecb9193a3f":[{"raw_change_id":147960,"classification_code":"NO_MATERIAL_CHANGE","confidence":"OBSERVED_ONLY","classifier_version":"1.3.0","classified_at":"2026-10-13T03:37:17+00:00","current":0,"public_explanation":"ARIN-Issued lists it as \"Remove\", but ARIN's statistics show the same record before and after (reserved). Another change to this range was reported the day before or after (2017-02-23: Remove 66.212.56.0-66.212.59.255; 2017-02-23: Add 66.212.56.0-66.212.59.255), so the before-and-after statistics may include it."},{"raw_change_id":147960,"classification_code":"NO_MATERIAL_CHANGE","confidence":"OBSERVED_ONLY","classifier_version":"1.3.1","classified_at":"2026-10-13T08:05:58+00:00","current":0,"public_explanation":"ARIN-Issued lists it as \"Remove\", but ARIN's statistics show the same record before and after (reserved). Another change to this range was reported the day before or after (2017-02-23: Remove 66.212.56.0-66.212.59.255; 2017-02-23: Add 66.212.56.0-66.212.59.255), so the before-and-after statistics may include it."},{"raw_change_id":147960,"classification_code":"NO_MATERIAL_CHANGE","confidence":"OBSERVED_ONLY","classifier_version":"1.3.2","classified_at":"2026-10-13T14:48:37+00:00","current":0,"public_explanation":"ARIN-Issued lists it as \"Remove\", but ARIN's statistics show the same record before and after (reserved). Another change to this range was reported the day before or after (2017-02-23: Remove 66.212.56.0-66.212.59.255; 2017-02-23: Add 66.212.56.0-66.212.59.255), so the before-and-after statistics may include it."},{"raw_change_id":147960,"classification_code":"NO_MATERIAL_CHANGE","confidence":"OBSERVED_ONLY","classifier_version":"1.4.0","classified_at":"2026-10-13T23:51:43+00:00","current":1,"public_explanation":"ARIN-Issued lists it as \"Remove\", but ARIN's statistics show the same record before and after (reserved). Another change to this range was reported the day before or after (2017-02-23: Remove 66.212.56.0-66.212.59.255; 2017-02-23: Add 66.212.56.0-66.212.59.255), so the before-and-after statistics may include it."}]},"arin_statistics_now":{"status":"allocated (dated 2017-02-23)"}}