{"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":"148.163.178.0/23","resource_type":"ipv4","page":"https://rirtracker.com/ip/148.163.178.0-148.163.179.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 1995-09-08)"},"current_holder":{"rir":"ARIN","org":null,"how":"ARIN's latest statistics"},"rdap_snapshots":[],"transfers":[],"events":[{"event_id":"d212b3754bcc76ad","registry":"ARIN","report_date":"2011-03-29","source":"arin_issued","raw_action":"ADD","raw_line":"Add 148.163.178.0-148.163.179.255","resource_type":"ipv4","resource":"148.163.178.0/23","start":"148.163.178.0","end":"148.163.179.255","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":"2026-10-13T23:50:52+00:00","page":"https://rirtracker.com/ip/148.163.178.0-148.163.179.255/#e-d212b3754bcc76ad","report_page":"https://rirtracker.com/arin/reports/2011-03-29/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/148.163.178.0-148.163.179.255.json","explanation":"No transfer record matches. ARIN's statistics show it assigned (dated 1995-09-08) on 2011-03-28 and assigned (dated 2011-03-29) on 2011-03-30. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registration was replaced with one for a different holder record, and public sources don't say why (a transfer not yet logged, a return and reissue, or an organization record change).","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2011-March/000835.html","retrieved_at":"2026-10-12T18:37:01+00:00","summary":"ARIN-Issued report for 2011-03-29: \"Add 148.163.178.0-148.163.179.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2011/delegated-arin-20110328.gz","retrieved_at":"2026-10-12T19:18:11+00:00","summary":"ARIN delegated statistics 2011-03-28, before the report: assigned (dated 1995-09-08)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2011/delegated-arin-20110330.gz","retrieved_at":"2026-10-12T19:18:15+00:00","summary":"ARIN delegated statistics 2011-03-30, after the report: assigned (dated 2011-03-29)"}]}],"classification_history":{"d212b3754bcc76ad":[{"raw_change_id":123007,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.0","classified_at":"2026-10-13T03:13:36+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it assigned (dated 1995-09-08) on 2011-03-28 and assigned (dated 2011-03-29) on 2011-03-30. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registration was replaced with one for a different holder record, and public sources don't say why (a transfer not yet logged, a return and reissue, or an organization record change)."},{"raw_change_id":123007,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.1","classified_at":"2026-10-13T08:05:19+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it assigned (dated 1995-09-08) on 2011-03-28 and assigned (dated 2011-03-29) on 2011-03-30. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registration was replaced with one for a different holder record, and public sources don't say why (a transfer not yet logged, a return and reissue, or an organization record change)."},{"raw_change_id":123007,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.2","classified_at":"2026-10-13T14:47:52+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it assigned (dated 1995-09-08) on 2011-03-28 and assigned (dated 2011-03-29) on 2011-03-30. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registration was replaced with one for a different holder record, and public sources don't say why (a transfer not yet logged, a return and reissue, or an organization record change)."},{"raw_change_id":123007,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.4.0","classified_at":"2026-10-13T23:50:52+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it assigned (dated 1995-09-08) on 2011-03-28 and assigned (dated 2011-03-29) on 2011-03-30. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registration was replaced with one for a different holder record, and public sources don't say why (a transfer not yet logged, a return and reissue, or an organization record change)."}]},"arin_statistics_now":{"status":"allocated (dated 1995-09-08)"}}