{"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":"23.251.224.0/19","resource_type":"ipv4","page":"https://rirtracker.com/ip/23.251.224.0-23.251.255.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2018-07-11)"},"current_holder":{"rir":"ARIN","org":"Amazon Web Services, Inc.","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":20091,"date":"2020-02-24T20:27:56Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Amazon.com, Inc.","recipient_org":"Amazon Web Services, Inc.","range":"23.251.224.0/19","log":"ARIN"},{"id":13611,"date":"2018-07-11T14:30:26Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"EARTHMETA MULTIMEDIA STUDIOS","recipient_org":"Amazon.com, Inc.","range":"23.251.224.0/19","log":"ARIN"}],"events":[{"event_id":"ce2ea631aa9274de","registry":"ARIN","report_date":"2020-02-24","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"23.251.224.0/19","start":"23.251.224.0","end":"23.251.255.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Amazon.com, Inc.","recipient_organization":"Amazon Web Services, Inc.","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:48+00:00","page":"https://rirtracker.com/ip/23.251.224.0-23.251.255.255/#e-ce2ea631aa9274de","report_page":"https://rirtracker.com/arin/reports/2020-02-24/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/23.251.224.0-23.251.255.255.json","observed":"Merger/acquisition: Amazon.com, Inc. (ARIN) to Amazon Web Services, Inc. (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Amazon.com, Inc. (ARIN) to Amazon Web Services, Inc. (ARIN) on 2020-02-24 20:27 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 2020-02-24 20:27 UTC, Amazon.com, Inc. (ARIN) to Amazon Web Services, Inc. (ARIN); resources moved: 23.251.224.0/19"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2020/delegated-arin-extended-20200223.gz","retrieved_at":"2026-10-12T22:19:37+00:00","summary":"ARIN delegated statistics 2020-02-23 (produced 2020-02-23T15:00:13+00:00), before the report: allocated (dated 2018-07-11)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2020/delegated-arin-extended-20200225.gz","retrieved_at":"2026-10-12T22:19:42+00:00","summary":"ARIN delegated statistics 2020-02-25 (produced 2020-02-25T15:00:13+00:00), after the report: allocated (dated 2018-07-11)"}]},{"event_id":"63d22bf049f6d677","registry":"ARIN","report_date":"2018-07-11","source":"arin_issued","raw_action":"ADD","raw_line":"Add 23.251.224.0-23.251.255.255","resource_type":"ipv4","resource":"23.251.224.0/19","start":"23.251.224.0","end":"23.251.255.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-ARIN transfer","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"EARTHMETA MULTIMEDIA STUDIOS","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":"2026-10-13T23:52:13+00:00","page":"https://rirtracker.com/ip/23.251.224.0-23.251.255.255/#e-63d22bf049f6d677","report_page":"https://rirtracker.com/arin/reports/2018-07-11/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/23.251.224.0-23.251.255.255.json","explanation":"ARIN's transfer log records a transfer from EARTHMETA MULTIMEDIA STUDIOS (ARIN) to Amazon.com, Inc. (ARIN) on 2018-07-11 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/2018-July/003500.html","retrieved_at":"2026-10-12T18:40:07+00:00","summary":"ARIN-Issued report for 2018-07-11: \"Add 23.251.224.0-23.251.255.255\""},{"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 2018-07-11 14:30 UTC, EARTHMETA MULTIMEDIA STUDIOS (ARIN) to Amazon.com, Inc. (ARIN); resources moved: 23.251.224.0/19"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20180710.gz","retrieved_at":"2026-10-12T21:49:06+00:00","summary":"ARIN delegated statistics 2018-07-10 (produced 2018-07-10T05:00:23+00:00), before the report: allocated (dated 2013-12-03)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20180712.gz","retrieved_at":"2026-10-12T21:49:11+00:00","summary":"ARIN delegated statistics 2018-07-12 (produced 2018-07-12T05:00:23+00:00), after the report: allocated (dated 2018-07-11)"}]},{"event_id":"f632ac1674586b03","registry":"ARIN","report_date":"2013-12-03","source":"arin_issued","raw_action":"ADD","raw_line":"Add 23.251.224.0-23.251.255.255","resource_type":"ipv4","resource":"23.251.224.0/19","start":"23.251.224.0","end":"23.251.255.255","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":"2026-10-13T23:51:09+00:00","page":"https://rirtracker.com/ip/23.251.224.0-23.251.255.255/#e-f632ac1674586b03","report_page":"https://rirtracker.com/arin/reports/2013-12-03/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/23.251.224.0-23.251.255.255.json","explanation":"No transfer record matches. ARIN's statistics show it available on 2013-12-02 and allocated (dated 2013-12-03) on 2013-12-04. 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/2013-December/001819.html","retrieved_at":"2026-10-12T18:38:11+00:00","summary":"ARIN-Issued report for 2013-12-03: \"Add 23.251.224.0-23.251.255.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2013/delegated-arin-extended-20131202.gz","retrieved_at":"2026-10-12T20:08:28+00:00","summary":"ARIN delegated statistics 2013-12-02 (produced 2013-12-02T06:06:59+00:00), before the report: available"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2013/delegated-arin-extended-20131204.gz","retrieved_at":"2026-10-12T20:08:33+00:00","summary":"ARIN delegated statistics 2013-12-04 (produced 2013-12-04T06:07:02+00:00), after the report: allocated (dated 2013-12-03)"}]}],"classification_history":{"ce2ea631aa9274de":[{"raw_change_id":560089,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:48+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Amazon.com, Inc. (ARIN) to Amazon Web Services, Inc. (ARIN) on 2020-02-24 20:27 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."}],"63d22bf049f6d677":[{"raw_change_id":155452,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T03:41:44+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from EARTHMETA MULTIMEDIA STUDIOS (ARIN) to Amazon.com, Inc. (ARIN) on 2018-07-11 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":155452,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:06:20+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from EARTHMETA MULTIMEDIA STUDIOS (ARIN) to Amazon.com, Inc. (ARIN) on 2018-07-11 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":155452,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:49:01+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from EARTHMETA MULTIMEDIA STUDIOS (ARIN) to Amazon.com, Inc. (ARIN) on 2018-07-11 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":155452,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:52:13+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from EARTHMETA MULTIMEDIA STUDIOS (ARIN) to Amazon.com, Inc. (ARIN) on 2018-07-11 14:30 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."}],"f632ac1674586b03":[{"raw_change_id":130851,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:22:51+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2013-12-02 and allocated (dated 2013-12-03) on 2013-12-04. 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":130851,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:05:32+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2013-12-02 and allocated (dated 2013-12-03) on 2013-12-04. 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":130851,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:48:07+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2013-12-02 and allocated (dated 2013-12-03) on 2013-12-04. 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":130851,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:51:09+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2013-12-02 and allocated (dated 2013-12-03) on 2013-12-04. 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 2018-07-11)"}}