{"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":"184.164.224.0/19","resource_type":"ipv4","page":"https://rirtracker.com/ip/184.164.224.0-184.164.255.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2011-06-02)"},"current_holder":{"rir":"ARIN","org":"USC / UFMG PEERING Research Testbed","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":6233,"date":"2015-12-09T18:21:45Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"GTnoise.net, Inc.","recipient_org":"USC / UFMG PEERING Research Testbed","range":"184.164.224.0/19","log":"ARIN"}],"events":[{"event_id":"9331702786cc4755","registry":"ARIN","report_date":"2015-12-09","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"184.164.224.0/19","start":"184.164.224.0","end":"184.164.255.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"GTnoise.net, Inc.","recipient_organization":"USC / UFMG PEERING Research Testbed","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:23+00:00","page":"https://rirtracker.com/ip/184.164.224.0-184.164.255.255/#e-9331702786cc4755","report_page":"https://rirtracker.com/arin/reports/2015-12-09/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/184.164.224.0-184.164.255.255.json","observed":"Merger/acquisition: GTnoise.net, Inc. (ARIN) to USC / UFMG PEERING Research Testbed (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from GTnoise.net, Inc. (ARIN) to USC / UFMG PEERING Research Testbed (ARIN) on 2015-12-09 18:21 UTC. The registration changed hands; it is not a new allocation from ARIN. ARIN-Issued and ARIN's statistics don't show this change; only the transfer log records it.","evidence":[{"type":"transfer","url":"https://ftp.arin.net/pub/stats/arin/transfers/transfers_latest.json","retrieved_at":"2026-10-13T13:57:20+00:00","summary":"Transfer log: MERGER_ACQUISITION on 2015-12-09 18:21 UTC, GTnoise.net, Inc. (ARIN) to USC / UFMG PEERING Research Testbed (ARIN); resources moved: 184.164.224.0/19"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2015/delegated-arin-extended-20151208.gz","retrieved_at":"2026-10-12T21:02:46+00:00","summary":"ARIN delegated statistics 2015-12-08 (produced 2015-12-08T06:04:50+00:00), before the report: assigned (dated 2011-06-02)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2015/delegated-arin-extended-20151210.gz","retrieved_at":"2026-10-12T21:02:51+00:00","summary":"ARIN delegated statistics 2015-12-10 (produced 2015-12-10T06:04:38+00:00), after the report: assigned (dated 2011-06-02)"}]},{"event_id":"b54972c8a8752e6f","registry":"ARIN","report_date":"2011-06-02","source":"arin_issued","raw_action":"ADD","raw_line":"Add 184.164.224.0-184.164.255.255","resource_type":"ipv4","resource":"184.164.224.0/19","start":"184.164.224.0","end":"184.164.255.255","classification":"APPARENT_NEW_ISSUANCE","classification_label":"Apparent new issuance","confidence":"STRONG_INFERENCE","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":"2026-10-13T23:50:54+00:00","page":"https://rirtracker.com/ip/184.164.224.0-184.164.255.255/#e-b54972c8a8752e6f","report_page":"https://rirtracker.com/arin/reports/2011-06-02/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/184.164.224.0-184.164.255.255.json","explanation":"No transfer record matches. ARIN's statistics show it not issued on 2011-06-01 and assigned (dated 2011-06-02) on 2011-06-03. (Until 2013-03-05, ARIN's statistics list only what's issued.) It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2011-June/000900.html","retrieved_at":"2026-10-12T18:37:08+00:00","summary":"ARIN-Issued report for 2011-06-02: \"Add 184.164.224.0-184.164.255.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2011/delegated-arin-20110601.gz","retrieved_at":"2026-10-12T19:20:48+00:00","summary":"ARIN delegated statistics 2011-06-01, before the report: not issued"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2011/delegated-arin-20110603.gz","retrieved_at":"2026-10-12T19:20:55+00:00","summary":"ARIN delegated statistics 2011-06-03, after the report: assigned (dated 2011-06-02)"}]}],"classification_history":{"9331702786cc4755":[{"raw_change_id":549712,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:23+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from GTnoise.net, Inc. (ARIN) to USC / UFMG PEERING Research Testbed (ARIN) on 2015-12-09 18:21 UTC. The registration changed hands; it is not a new allocation from ARIN. ARIN-Issued and ARIN's statistics don't show this change; only the transfer log records it."}],"b54972c8a8752e6f":[{"raw_change_id":123678,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:14:06+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it not issued on 2011-06-01 and assigned (dated 2011-06-02) on 2011-06-03. (Until 2013-03-05, ARIN's statistics list only what's issued.) It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN."},{"raw_change_id":123678,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:05:20+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it not issued on 2011-06-01 and assigned (dated 2011-06-02) on 2011-06-03. (Until 2013-03-05, ARIN's statistics list only what's issued.) It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN."},{"raw_change_id":123678,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:47:54+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it not issued on 2011-06-01 and assigned (dated 2011-06-02) on 2011-06-03. (Until 2013-03-05, ARIN's statistics list only what's issued.) It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN."},{"raw_change_id":123678,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:50:54+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it not issued on 2011-06-01 and assigned (dated 2011-06-02) on 2011-06-03. (Until 2013-03-05, ARIN's statistics list only what's issued.) It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN."}]},"arin_statistics_now":{"status":"allocated (dated 2011-06-02)"}}