{"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":"104.151.0.0/16","resource_type":"ipv4","page":"https://rirtracker.com/ip/104.151.0.0-104.151.255.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2021-01-08), allocated (dated 2021-01-12), allocated (dated 2021-01-15), allocated (dated 2021-01-19), allocated (dated 2021-01-20), allocated (dated 2021-02-04)"},"current_holder":{"rir":null,"org":null,"how":null},"rdap_snapshots":[],"transfers":[{"id":115938,"date":"2025-10-30T19:00:00Z","type":"MERGER_ACQUISITION","source_rir":"RIPE NCC","recipient_rir":"RIPE NCC","source_org":"1&1 Versatel Deutschland GmbH","recipient_org":"1&1 Versatel GmbH","range":"104.151.0.0/17","log":"RIPE NCC"},{"id":22814,"date":"2021-02-04T22:58:18Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Enzu Inc","recipient_org":"SOGETEL INC","range":"104.151.128.0/21","log":"ARIN"},{"id":75910,"date":"2021-02-01T19:00:00Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_org":null,"recipient_org":"1&1 Versatel Deutschland GmbH","range":"104.151.0.0/17","log":"RIPE NCC"},{"id":22768,"date":"2021-02-01T14:37:31Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_org":"Enzu Inc","recipient_org":"1&1 Versatel Deutschland GmbH","range":"104.151.0.0/17","log":"ARIN"},{"id":22638,"date":"2021-01-20T23:14:34Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Enzu Inc","recipient_org":"Coosa Valley Technologies Inc","range":"104.151.224.0/19","log":"ARIN"},{"id":22628,"date":"2021-01-19T21:08:25Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Enzu Inc","recipient_org":"Centranet, LLC","range":"104.151.144.0/20","log":"ARIN"},{"id":22627,"date":"2021-01-19T21:08:25Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Enzu Inc","recipient_org":"Centranet, LLC","range":"104.151.160.0/20","log":"ARIN"},{"id":22618,"date":"2021-01-15T21:52:23Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Enzu Inc","recipient_org":"Connectria","range":"104.151.136.0/21","log":"ARIN"},{"id":22592,"date":"2021-01-12T19:44:28Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Enzu Inc","recipient_org":"Wave Rural Connect, LLC","range":"104.151.192.0/19","log":"ARIN"},{"id":22571,"date":"2021-01-08T22:16:55Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Enzu Inc","recipient_org":"Mountain West Technologies Corporation","range":"104.151.176.0/20","log":"ARIN"}],"events":[{"event_id":"8774613fe8c8246a","registry":"ARIN","report_date":"2014-07-07","source":"arin_issued","raw_action":"ADD","raw_line":"Add 104.151.0.0-104.151.255.255","resource_type":"ipv4","resource":"104.151.0.0/16","start":"104.151.0.0","end":"104.151.255.255","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":"2026-10-13T23:51:13+00:00","page":"https://rirtracker.com/ip/104.151.0.0-104.151.255.255/#e-8774613fe8c8246a","report_page":"https://rirtracker.com/arin/reports/2014-07-07/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/104.151.0.0-104.151.255.255.json","explanation":"No transfer record matches. ARIN's statistics show it available on 2014-07-06 and allocated (dated 2014-07-07) on 2014-07-08. 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/2014-July/002035.html","retrieved_at":"2026-10-12T18:38:26+00:00","summary":"ARIN-Issued report for 2014-07-07: \"Add 104.151.0.0-104.151.255.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2014/delegated-arin-extended-20140706.gz","retrieved_at":"2026-10-12T20:37:35+00:00","summary":"ARIN delegated statistics 2014-07-06 (produced 2014-07-06T05:04:42+00:00), before the report: available"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2014/delegated-arin-extended-20140708.gz","retrieved_at":"2026-10-12T20:37:40+00:00","summary":"ARIN delegated statistics 2014-07-08 (produced 2014-07-08T05:04:00+00:00), after the report: allocated (dated 2014-07-07)"}]}],"classification_history":{"8774613fe8c8246a":[{"raw_change_id":132938,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:25:28+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2014-07-06 and allocated (dated 2014-07-07) on 2014-07-08. The tracker saw this range released from hold on 2011-06-06 (69.57.208.0-216.250.127.255), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":132938,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:05:35+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2014-07-06 and allocated (dated 2014-07-07) on 2014-07-08. The tracker saw this range released from hold on 2011-06-06 (69.57.208.0-216.250.127.255), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":132938,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:48:10+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2014-07-06 and allocated (dated 2014-07-07) on 2014-07-08. 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":132938,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:51:13+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2014-07-06 and allocated (dated 2014-07-07) on 2014-07-08. 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 2021-01-08), allocated (dated 2021-01-12), allocated (dated 2021-01-15), allocated (dated 2021-01-19), allocated (dated 2021-01-20), allocated (dated 2021-02-04)"}}