{"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":"155.254.224.0/22","resource_type":"ipv4","page":"https://rirtracker.com/ip/155.254.224.0-155.254.227.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2021-01-05)"},"current_holder":{"rir":"ARIN","org":null,"how":"ARIN's latest statistics"},"rdap_snapshots":[],"transfers":[{"id":11299,"date":"2017-11-03T18:21:05Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Contina","recipient_org":"OppoBox","range":"155.254.192.0/18","log":"ARIN"}],"events":[{"event_id":"18f0a1a40e188779","registry":"ARIN","report_date":"2021-01-05","source":"arin_issued","raw_action":"ADD","raw_line":"Add 155.254.224.0-155.254.227.255","resource_type":"ipv4","resource":"155.254.224.0/22","start":"155.254.224.0","end":"155.254.227.255","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":"2026-10-13T23:53:03+00:00","page":"https://rirtracker.com/ip/155.254.224.0-155.254.227.255/#e-18f0a1a40e188779","report_page":"https://rirtracker.com/arin/reports/2021-01-05/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/155.254.224.0-155.254.227.255.json","explanation":"No transfer record matches. ARIN's statistics show it reserved on 2021-01-04 and allocated (dated 2021-01-05) on 2021-01-06. The tracker saw this range released from hold on 2021-01-04 (155.254.192.0-155.254.255.255), so it appears to have been issued again from ARIN's pool. Another change to this range was reported the day before or after (2021-01-04: Remove 155.254.192.0-155.254.255.255), so the before-and-after statistics may include it.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2021-January/004407.html","retrieved_at":"2026-10-12T18:41:11+00:00","summary":"ARIN-Issued report for 2021-01-05: \"Add 155.254.224.0-155.254.227.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2021/delegated-arin-extended-20210104.gz","retrieved_at":"2026-10-12T22:36:08+00:00","summary":"ARIN delegated statistics 2021-01-04 (produced 2021-01-04T15:00:13+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2021/delegated-arin-extended-20210106.gz","retrieved_at":"2026-10-12T22:36:13+00:00","summary":"ARIN delegated statistics 2021-01-06 (produced 2021-01-06T15:00:14+00:00), after the report: allocated (dated 2021-01-05)"}]},{"event_id":"eab7922f9698d4fa","registry":"ARIN","report_date":"2021-01-05","source":"arin_issued","raw_action":"REMOVE","raw_line":"Remove 155.254.224.0-155.254.227.255","resource_type":"ipv4","resource":"155.254.224.0/22","start":"155.254.224.0","end":"155.254.227.255","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":"2026-10-13T23:53:03+00:00","page":"https://rirtracker.com/ip/155.254.224.0-155.254.227.255/#e-eab7922f9698d4fa","report_page":"https://rirtracker.com/arin/reports/2021-01-05/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/155.254.224.0-155.254.227.255.json","explanation":"ARIN's statistics show it reserved on 2021-01-04 and allocated (dated 2021-01-05) on 2021-01-06. ARIN removed its own pool record for this range as part of issuing it: the same report adds 155.254.224.0-155.254.227.255. The issuance is explained on that line. Another change to this range was reported the day before or after (2021-01-04: Remove 155.254.192.0-155.254.255.255), so the before-and-after statistics may include it.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2021-January/004407.html","retrieved_at":"2026-10-12T18:41:11+00:00","summary":"ARIN-Issued report for 2021-01-05: \"Remove 155.254.224.0-155.254.227.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2021/delegated-arin-extended-20210104.gz","retrieved_at":"2026-10-12T22:36:08+00:00","summary":"ARIN delegated statistics 2021-01-04 (produced 2021-01-04T15:00:13+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2021/delegated-arin-extended-20210106.gz","retrieved_at":"2026-10-12T22:36:13+00:00","summary":"ARIN delegated statistics 2021-01-06 (produced 2021-01-06T15:00:14+00:00), after the report: allocated (dated 2021-01-05)"}]}],"classification_history":{"18f0a1a40e188779":[{"raw_change_id":169292,"classification_code":"APPARENT_REISSUANCE","confidence":"OBSERVED_ONLY","classifier_version":"1.3.0","classified_at":"2026-10-13T03:50:57+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2021-01-04 and allocated (dated 2021-01-05) on 2021-01-06. The tracker saw this range released from hold on 2021-01-04 (155.254.192.0-155.254.255.255), so it appears to have been issued again from ARIN's pool. Another change to this range was reported the day before or after (2021-01-04: Remove 155.254.192.0-155.254.255.255), so the before-and-after statistics may include it."},{"raw_change_id":169292,"classification_code":"APPARENT_REISSUANCE","confidence":"OBSERVED_ONLY","classifier_version":"1.3.1","classified_at":"2026-10-13T08:06:57+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2021-01-04 and allocated (dated 2021-01-05) on 2021-01-06. The tracker saw this range released from hold on 2021-01-04 (155.254.192.0-155.254.255.255), so it appears to have been issued again from ARIN's pool. Another change to this range was reported the day before or after (2021-01-04: Remove 155.254.192.0-155.254.255.255), so the before-and-after statistics may include it."},{"raw_change_id":169292,"classification_code":"APPARENT_REISSUANCE","confidence":"OBSERVED_ONLY","classifier_version":"1.3.2","classified_at":"2026-10-13T14:49:43+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2021-01-04 and allocated (dated 2021-01-05) on 2021-01-06. The tracker saw this range released from hold on 2021-01-04 (155.254.192.0-155.254.255.255), so it appears to have been issued again from ARIN's pool. Another change to this range was reported the day before or after (2021-01-04: Remove 155.254.192.0-155.254.255.255), so the before-and-after statistics may include it."},{"raw_change_id":169292,"classification_code":"APPARENT_REISSUANCE","confidence":"OBSERVED_ONLY","classifier_version":"1.4.0","classified_at":"2026-10-13T23:53:03+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2021-01-04 and allocated (dated 2021-01-05) on 2021-01-06. The tracker saw this range released from hold on 2021-01-04 (155.254.192.0-155.254.255.255), so it appears to have been issued again from ARIN's pool. Another change to this range was reported the day before or after (2021-01-04: Remove 155.254.192.0-155.254.255.255), so the before-and-after statistics may include it."}],"eab7922f9698d4fa":[{"raw_change_id":169249,"classification_code":"POOL_RECORD_CHANGE","confidence":"OBSERVED_ONLY","classifier_version":"1.3.0","classified_at":"2026-10-13T03:50:56+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2021-01-04 and allocated (dated 2021-01-05) on 2021-01-06. ARIN removed its own pool record for this range as part of issuing it: the same report adds 155.254.224.0-155.254.227.255. The issuance is explained on that line. Another change to this range was reported the day before or after (2021-01-04: Remove 155.254.192.0-155.254.255.255), so the before-and-after statistics may include it."},{"raw_change_id":169249,"classification_code":"POOL_RECORD_CHANGE","confidence":"OBSERVED_ONLY","classifier_version":"1.3.1","classified_at":"2026-10-13T08:06:57+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2021-01-04 and allocated (dated 2021-01-05) on 2021-01-06. ARIN removed its own pool record for this range as part of issuing it: the same report adds 155.254.224.0-155.254.227.255. The issuance is explained on that line. Another change to this range was reported the day before or after (2021-01-04: Remove 155.254.192.0-155.254.255.255), so the before-and-after statistics may include it."},{"raw_change_id":169249,"classification_code":"POOL_RECORD_CHANGE","confidence":"OBSERVED_ONLY","classifier_version":"1.3.2","classified_at":"2026-10-13T14:49:43+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2021-01-04 and allocated (dated 2021-01-05) on 2021-01-06. ARIN removed its own pool record for this range as part of issuing it: the same report adds 155.254.224.0-155.254.227.255. The issuance is explained on that line. Another change to this range was reported the day before or after (2021-01-04: Remove 155.254.192.0-155.254.255.255), so the before-and-after statistics may include it."},{"raw_change_id":169249,"classification_code":"POOL_RECORD_CHANGE","confidence":"OBSERVED_ONLY","classifier_version":"1.4.0","classified_at":"2026-10-13T23:53:03+00:00","current":1,"public_explanation":"ARIN's statistics show it reserved on 2021-01-04 and allocated (dated 2021-01-05) on 2021-01-06. ARIN removed its own pool record for this range as part of issuing it: the same report adds 155.254.224.0-155.254.227.255. The issuance is explained on that line. Another change to this range was reported the day before or after (2021-01-04: Remove 155.254.192.0-155.254.255.255), so the before-and-after statistics may include it."}]},"arin_statistics_now":{"status":"allocated (dated 2021-01-05)"}}