{"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":"199.38.251.0 - 199.38.255.255","resource_type":"ipv4","page":"https://rirtracker.com/ip/199.38.251.0-199.38.255.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2025-10-03), allocated (dated 2025-11-10)"},"current_holder":{"rir":"ARIN","org":null,"how":"ARIN's latest statistics"},"rdap_snapshots":[],"transfers":[],"events":[{"event_id":"aa45d90b3c753fa9","registry":"ARIN","report_date":"2025-10-01","source":"arin_issued","raw_action":"REMOVE","raw_line":"Remove 199.38.251.0-199.38.255.255","resource_type":"ipv4","resource":"199.38.251.0 - 199.38.255.255","start":"199.38.251.0","end":"199.38.255.255","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":"2026-10-13T23:54:35+00:00","page":"https://rirtracker.com/ip/199.38.251.0-199.38.255.255/#e-aa45d90b3c753fa9","report_page":"https://rirtracker.com/arin/reports/2025-10-01/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/199.38.251.0-199.38.255.255.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/2025-October/006136.html","retrieved_at":"2026-10-12T18:43:11+00:00","summary":"ARIN-Issued report for 2025-10-01: \"Remove 199.38.251.0-199.38.255.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20250930.gz","retrieved_at":"2026-10-13T00:07:37+00:00","summary":"ARIN delegated statistics 2025-09-30 (produced 2025-09-30T13:00:49+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20251002.gz","retrieved_at":"2026-10-13T00:07:42+00:00","summary":"ARIN delegated statistics 2025-10-02 (produced 2025-10-02T13:00:50+00:00), after the report: reserved"}]}],"classification_history":{"aa45d90b3c753fa9":[{"raw_change_id":196140,"classification_code":"NO_MATERIAL_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:07:51+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":196140,"classification_code":"NO_MATERIAL_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:08:06+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":196140,"classification_code":"NO_MATERIAL_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:51:01+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":196140,"classification_code":"NO_MATERIAL_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:35+00:00","current":1,"public_explanation":"ARIN-Issued lists it as \"Remove\", but ARIN's statistics show the same record before and after (reserved)."}]},"arin_statistics_now":{"status":"allocated (dated 2025-10-03), allocated (dated 2025-11-10)"}}