{"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":"15.143.0.0/16","resource_type":"ipv4","page":"https://rirtracker.com/ip/15.143.0.0-15.143.255.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2023-07-11)"},"current_holder":{"rir":"ARIN","org":"Amazon.com, Inc.","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":32417,"date":"2023-07-11T14:30:18Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"DXC US Latin America Corporation","recipient_org":"Amazon.com, Inc.","range":"15.143.0.0/16","log":"ARIN"},{"id":14570,"date":"2018-09-14T20:02:41Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"HEWLETT PACKARD ENTERPRISE COMPANY","recipient_org":"Enterprise Services Latin America Corporation","range":"15.128.0.0/9","log":"ARIN"},{"id":9901,"date":"2017-06-07T19:07:29Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Hewlett-Packard Company","recipient_org":"HEWLETT PACKARD ENTERPRISE COMPANY","range":"15.128.0.0/9","log":"ARIN"}],"events":[{"event_id":"f08b48948f9130b4","registry":"ARIN","report_date":"2023-07-11","source":"arin_issued","raw_action":"ADD","raw_line":"Add 15.143.0.0-15.143.255.255","resource_type":"ipv4","resource":"15.143.0.0/16","start":"15.143.0.0","end":"15.143.255.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-ARIN transfer","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"DXC US Latin America Corporation","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":"2026-10-13T23:53:46+00:00","page":"https://rirtracker.com/ip/15.143.0.0-15.143.255.255/#e-f08b48948f9130b4","report_page":"https://rirtracker.com/arin/reports/2023-07-11/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/15.143.0.0-15.143.255.255.json","explanation":"ARIN's transfer log records a transfer from DXC US Latin America Corporation (ARIN) to Amazon.com, Inc. (ARIN) on 2023-07-11 14:30 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/2023-July/005324.html","retrieved_at":"2026-10-12T18:42:14+00:00","summary":"ARIN-Issued report for 2023-07-11: \"Add 15.143.0.0-15.143.255.255\""},{"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 2023-07-11 14:30 UTC, DXC US Latin America Corporation (ARIN) to Amazon.com, Inc. (ARIN); resources moved: 15.143.0.0/16"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2023/delegated-arin-extended-20230710.gz","retrieved_at":"2026-10-12T23:23:39+00:00","summary":"ARIN delegated statistics 2023-07-10 (produced 2023-07-10T13:00:10+00:00), before the report: allocated (dated 1994-07-01)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2023/delegated-arin-extended-20230712.gz","retrieved_at":"2026-10-12T23:23:44+00:00","summary":"ARIN delegated statistics 2023-07-12 (produced 2023-07-12T13:00:10+00:00), after the report: allocated (dated 2023-07-11)"}]}],"classification_history":{"f08b48948f9130b4":[{"raw_change_id":182469,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T03:59:33+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from DXC US Latin America Corporation (ARIN) to Amazon.com, Inc. (ARIN) on 2023-07-11 14:30 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":182469,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:07:29+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from DXC US Latin America Corporation (ARIN) to Amazon.com, Inc. (ARIN) on 2023-07-11 14:30 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":182469,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:50:20+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from DXC US Latin America Corporation (ARIN) to Amazon.com, Inc. (ARIN) on 2023-07-11 14:30 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":182469,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:53:46+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from DXC US Latin America Corporation (ARIN) to Amazon.com, Inc. (ARIN) on 2023-07-11 14:30 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."}]},"arin_statistics_now":{"status":"allocated (dated 2023-07-11)"}}