{"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":"158.51.184.0 - 158.51.235.255","resource_type":"ipv4","page":"https://rirtracker.com/ip/158.51.184.0-158.51.235.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2020-01-17), allocated (dated 2020-01-21), allocated (dated 2020-01-22), allocated (dated 2020-01-23), allocated (dated 2020-01-24), allocated (dated 2020-02-03), allocated (dated 2020-02-11), allocated (dated 2020-02-18), allocated (dated 2020-06-15), allocated (dated 2023-01-13)"},"current_holder":{"rir":"ARIN","org":null,"how":"ARIN's latest statistics"},"rdap_snapshots":[],"transfers":[{"id":35365,"date":"2024-04-29T14:04:30Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"HC Technologies, LLC","recipient_org":"GTS Securities, LLC","range":"158.51.196.0/23","log":"ARIN"},{"id":31882,"date":"2023-05-09T17:05:21Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Gemalto, Inc.","recipient_org":"Thales DIS USA, Inc.","range":"158.51.232.0/22","log":"ARIN"}],"events":[{"event_id":"7672e8e0bca3f319","registry":"ARIN","report_date":"2020-01-17","source":"arin_issued","raw_action":"REMOVE","raw_line":"Remove 158.51.184.0-158.51.235.255","resource_type":"ipv4","resource":"158.51.184.0 - 158.51.235.255","start":"158.51.184.0","end":"158.51.235.255","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":"2026-10-13T23:52:42+00:00","page":"https://rirtracker.com/ip/158.51.184.0-158.51.235.255/#e-7672e8e0bca3f319","report_page":"https://rirtracker.com/arin/reports/2020-01-17/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/158.51.184.0-158.51.235.255.json","explanation":"ARIN's statistics show it reserved on 2020-01-16 and allocated (dated 2020-01-17), reserved on 2020-01-18. ARIN removed its own pool record for this range as part of issuing it: the same report adds 158.51.184.0-158.51.187.255, 158.51.188.0-158.51.191.255, 158.51.192.0-158.51.195.255, 158.51.202.0-158.51.202.255 and 4 more. The issuance is explained on those lines.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2020-January/004054.html","retrieved_at":"2026-10-12T18:40:45+00:00","summary":"ARIN-Issued report for 2020-01-17: \"Remove 158.51.184.0-158.51.235.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2020/delegated-arin-extended-20200116.gz","retrieved_at":"2026-10-12T22:17:38+00:00","summary":"ARIN delegated statistics 2020-01-16 (produced 2020-01-16T15:00:09+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2020/delegated-arin-extended-20200118.gz","retrieved_at":"2026-10-12T22:17:51+00:00","summary":"ARIN delegated statistics 2020-01-18 (produced 2020-01-18T15:00:09+00:00), after the report: allocated (dated 2020-01-17), reserved"}]}],"classification_history":{"7672e8e0bca3f319":[{"raw_change_id":163366,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:46:56+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2020-01-16 and allocated (dated 2020-01-17), reserved on 2020-01-18. ARIN removed its own pool record for this range as part of issuing it: the same report adds 158.51.184.0-158.51.187.255, 158.51.188.0-158.51.191.255, 158.51.192.0-158.51.195.255, 158.51.202.0-158.51.202.255 and 4 more. The issuance is explained on those lines."},{"raw_change_id":163366,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:06:42+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2020-01-16 and allocated (dated 2020-01-17), reserved on 2020-01-18. ARIN removed its own pool record for this range as part of issuing it: the same report adds 158.51.184.0-158.51.187.255, 158.51.188.0-158.51.191.255, 158.51.192.0-158.51.195.255, 158.51.202.0-158.51.202.255 and 4 more. The issuance is explained on those lines."},{"raw_change_id":163366,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:49:26+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2020-01-16 and allocated (dated 2020-01-17), reserved on 2020-01-18. ARIN removed its own pool record for this range as part of issuing it: the same report adds 158.51.184.0-158.51.187.255, 158.51.188.0-158.51.191.255, 158.51.192.0-158.51.195.255, 158.51.202.0-158.51.202.255 and 4 more. The issuance is explained on those lines."},{"raw_change_id":163366,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:52:42+00:00","current":1,"public_explanation":"ARIN's statistics show it reserved on 2020-01-16 and allocated (dated 2020-01-17), reserved on 2020-01-18. ARIN removed its own pool record for this range as part of issuing it: the same report adds 158.51.184.0-158.51.187.255, 158.51.188.0-158.51.191.255, 158.51.192.0-158.51.195.255, 158.51.202.0-158.51.202.255 and 4 more. The issuance is explained on those lines."}]},"arin_statistics_now":{"status":"allocated (dated 2020-01-17), allocated (dated 2020-01-21), allocated (dated 2020-01-22), allocated (dated 2020-01-23), allocated (dated 2020-01-24), allocated (dated 2020-02-03), allocated (dated 2020-02-11), allocated (dated 2020-02-18), allocated (dated 2020-06-15), allocated (dated 2023-01-13)"}}