{"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":"199.87.1.0 - 199.87.7.255","resource_type":"ipv4","page":"https://rirtracker.com/ip/199.87.1.0-199.87.7.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2012-08-01), allocated (dated 2015-09-18), allocated (dated 2022-07-19)"},"current_holder":{"rir":"ARIN","org":null,"how":"ARIN's latest statistics"},"rdap_snapshots":[],"transfers":[],"events":[{"event_id":"8403cb8d89fd732b","registry":"ARIN","report_date":"2012-04-06","source":"arin_issued","raw_action":"REMOVE","raw_line":"Remove 199.87.1.0-199.87.7.255","resource_type":"ipv4","resource":"199.87.1.0 - 199.87.7.255","start":"199.87.1.0","end":"199.87.7.255","classification":"UNRESOLVED","classification_label":"Unresolved change","confidence":"OBSERVED_ONLY","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"Inventory effect unknown","inventory_effect_code":"UNKNOWN","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:50:58+00:00","page":"https://rirtracker.com/ip/199.87.1.0-199.87.7.255/#e-8403cb8d89fd732b","report_page":"https://rirtracker.com/arin/reports/2012-04-06/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/199.87.1.0-199.87.7.255.json","explanation":"ARIN-Issued says \"Remove\", but ARIN's statistics show it not issued on 2012-04-05 and not issued on 2012-04-07. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registry's pool records from that time aren't public, so the tracker can't tell what was removed.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2012-April/001212.html","retrieved_at":"2026-10-12T18:37:29+00:00","summary":"ARIN-Issued report for 2012-04-06: \"Remove 199.87.1.0-199.87.7.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2012/delegated-arin-20120405.gz","retrieved_at":"2026-10-12T19:33:55+00:00","summary":"ARIN delegated statistics 2012-04-05, before the report: not issued"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2012/delegated-arin-20120407.gz","retrieved_at":"2026-10-12T19:34:03+00:00","summary":"ARIN delegated statistics 2012-04-07, after the report: not issued"}]}],"classification_history":{"8403cb8d89fd732b":[{"raw_change_id":125920,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.0","classified_at":"2026-10-13T03:16:49+00:00","current":0,"public_explanation":"ARIN-Issued says \"Remove\", but ARIN's statistics show it not issued on 2012-04-05 and not issued on 2012-04-07. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registry's pool records from that time aren't public, so the tracker can't tell what was removed."},{"raw_change_id":125920,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.1","classified_at":"2026-10-13T08:05:24+00:00","current":0,"public_explanation":"ARIN-Issued says \"Remove\", but ARIN's statistics show it not issued on 2012-04-05 and not issued on 2012-04-07. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registry's pool records from that time aren't public, so the tracker can't tell what was removed."},{"raw_change_id":125920,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.2","classified_at":"2026-10-13T14:47:58+00:00","current":0,"public_explanation":"ARIN-Issued says \"Remove\", but ARIN's statistics show it not issued on 2012-04-05 and not issued on 2012-04-07. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registry's pool records from that time aren't public, so the tracker can't tell what was removed."},{"raw_change_id":125920,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.4.0","classified_at":"2026-10-13T23:50:58+00:00","current":1,"public_explanation":"ARIN-Issued says \"Remove\", but ARIN's statistics show it not issued on 2012-04-05 and not issued on 2012-04-07. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registry's pool records from that time aren't public, so the tracker can't tell what was removed."}]},"arin_statistics_now":{"status":"allocated (dated 2012-08-01), allocated (dated 2015-09-18), allocated (dated 2022-07-19)"}}