{"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. 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66.133.192.0-66.133.255.255","resource_type":"ipv4","resource":"66.133.192.0/18","start":"66.133.192.0","end":"66.133.255.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-ARIN transfer","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Windstream Communications LLC","recipient_organization":"Amazon.com, Inc.","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:01+00:00","page":"https://rirtracker.com/ip/66.133.192.0-66.133.255.255/#e-0d0356ee74c9d5c0","report_page":"https://rirtracker.com/arin/reports/2024-03-26/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/66.133.192.0-66.133.255.255.json","explanation":"ARIN's transfer log records a transfer from Windstream Communications LLC (ARIN) to Amazon.com, Inc. (ARIN) on 2024-03-26 14:51 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2024-March/005583.html","retrieved_at":"2026-10-12T18:42:31+00:00","summary":"ARIN-Issued report for 2024-03-26: \"Add 66.133.192.0-66.133.255.255\""},{"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: RESOURCE_TRANSFER on 2024-03-26 14:51 UTC, Windstream Communications LLC (ARIN) to Amazon.com, Inc. (ARIN); resources moved: 66.133.192.0/18"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20240325.gz","retrieved_at":"2026-10-12T23:37:24+00:00","summary":"ARIN delegated statistics 2024-03-25 (produced 2024-03-25T13:00:47+00:00), before the report: allocated (dated 2003-07-18)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20240327.gz","retrieved_at":"2026-10-12T23:37:29+00:00","summary":"ARIN delegated statistics 2024-03-27 (produced 2024-03-27T13:00:49+00:00), after the report: allocated (dated 2024-03-26)"}]},{"event_id":"ab8dd04c79eee3ef","registry":"ARIN","report_date":"2018-09-18","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"66.133.192.0/18","start":"66.133.192.0","end":"66.133.255.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Earthlink, Inc.","recipient_organization":"Windstream Communications LLC","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:39+00:00","page":"https://rirtracker.com/ip/66.133.192.0-66.133.255.255/#e-ab8dd04c79eee3ef","report_page":"https://rirtracker.com/arin/reports/2018-09-18/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/66.133.192.0-66.133.255.255.json","observed":"Merger/acquisition: Earthlink, Inc. (ARIN) to Windstream Communications LLC (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Earthlink, Inc. (ARIN) to Windstream Communications LLC (ARIN) on 2018-09-18 17:08 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 2018-09-18 17:08 UTC, Earthlink, Inc. (ARIN) to Windstream Communications LLC (ARIN); resources moved: 66.133.192.0/18"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20180917.gz","retrieved_at":"2026-10-12T21:52:42+00:00","summary":"ARIN delegated statistics 2018-09-17 (produced 2018-09-17T05:00:16+00:00), before the report: allocated (dated 2003-07-18)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20180919.gz","retrieved_at":"2026-10-12T21:52:47+00:00","summary":"ARIN delegated statistics 2018-09-19 (produced 2018-09-19T05:00:17+00:00), after the report: allocated (dated 2003-07-18)"}]}],"classification_history":{"0d0356ee74c9d5c0":[{"raw_change_id":186194,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T04:01:22+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Windstream Communications LLC (ARIN) to Amazon.com, Inc. (ARIN) on 2024-03-26 14:51 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":186194,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:07:41+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Windstream Communications LLC (ARIN) to Amazon.com, Inc. (ARIN) on 2024-03-26 14:51 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":186194,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:50:32+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Windstream Communications LLC (ARIN) to Amazon.com, Inc. (ARIN) on 2024-03-26 14:51 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":186194,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:01+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from Windstream Communications LLC (ARIN) to Amazon.com, Inc. (ARIN) on 2024-03-26 14:51 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."}],"ab8dd04c79eee3ef":[{"raw_change_id":556042,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:39+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Earthlink, Inc. (ARIN) to Windstream Communications LLC (ARIN) on 2018-09-18 17:08 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."}]},"arin_statistics_now":{"status":"allocated (dated 2024-03-26)"}}