{"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":"23.91.0.0/19","resource_type":"ipv4","page":"https://rirtracker.com/ip/23.91.0.0-23.91.31.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2023-12-06)"},"current_holder":{"rir":"ARIN","org":"Amazon.com, Inc.","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":33788,"date":"2023-12-06T14:06:42Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Psychz Networks","recipient_org":"Amazon.com, Inc.","range":"23.91.0.0/19","log":"ARIN"}],"events":[{"event_id":"6e46c2b733c021f4","registry":"ARIN","report_date":"2023-12-06","source":"arin_issued","raw_action":"ADD","raw_line":"Add 23.91.0.0-23.91.31.255","resource_type":"ipv4","resource":"23.91.0.0/19","start":"23.91.0.0","end":"23.91.31.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-ARIN transfer","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Psychz Networks","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":"2026-10-13T23:53:54+00:00","page":"https://rirtracker.com/ip/23.91.0.0-23.91.31.255/#e-6e46c2b733c021f4","report_page":"https://rirtracker.com/arin/reports/2023-12-06/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/23.91.0.0-23.91.31.255.json","explanation":"ARIN's transfer log records a transfer from Psychz Networks (ARIN) to Amazon.com, Inc. (ARIN) on 2023-12-06 14:06 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-December/005472.html","retrieved_at":"2026-10-12T18:42:25+00:00","summary":"ARIN-Issued report for 2023-12-06: \"Add 23.91.0.0-23.91.31.255\""},{"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 2023-12-06 14:06 UTC, Psychz Networks (ARIN) to Amazon.com, Inc. (ARIN); resources moved: 23.91.0.0/19"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2023/delegated-arin-extended-20231205.gz","retrieved_at":"2026-10-12T23:31:27+00:00","summary":"ARIN delegated statistics 2023-12-05 (produced 2023-12-05T14:00:34+00:00), before the report: allocated (dated 2013-08-20)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2023/delegated-arin-extended-20231207.gz","retrieved_at":"2026-10-12T23:31:32+00:00","summary":"ARIN delegated statistics 2023-12-07 (produced 2023-12-07T14:00:34+00:00), after the report: allocated (dated 2023-12-06)"}]},{"event_id":"ecb46af0a594de75","registry":"ARIN","report_date":"2013-08-20","source":"arin_issued","raw_action":"ADD","raw_line":"Add 23.91.0.0-23.91.31.255","resource_type":"ipv4","resource":"23.91.0.0/19","start":"23.91.0.0","end":"23.91.31.255","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":"2026-10-13T23:51:07+00:00","page":"https://rirtracker.com/ip/23.91.0.0-23.91.31.255/#e-ecb46af0a594de75","report_page":"https://rirtracker.com/arin/reports/2013-08-20/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/23.91.0.0-23.91.31.255.json","explanation":"No transfer record matches. ARIN's statistics show it available on 2013-08-19 and allocated (dated 2013-08-20) on 2013-08-21. 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-August/001713.html","retrieved_at":"2026-10-12T18:38:03+00:00","summary":"ARIN-Issued report for 2013-08-20: \"Add 23.91.0.0-23.91.31.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2013/delegated-arin-extended-20130819.gz","retrieved_at":"2026-10-12T20:03:24+00:00","summary":"ARIN delegated statistics 2013-08-19 (produced 2013-08-19T05:02:31+00:00), before the report: available"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2013/delegated-arin-extended-20130821.gz","retrieved_at":"2026-10-12T20:03:28+00:00","summary":"ARIN delegated statistics 2013-08-21 (produced 2013-08-21T05:04:18+00:00), after the report: allocated (dated 2013-08-20)"}]}],"classification_history":{"6e46c2b733c021f4":[{"raw_change_id":184474,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T04:00:34+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Psychz Networks (ARIN) to Amazon.com, Inc. (ARIN) on 2023-12-06 14:06 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":184474,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:07:35+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Psychz Networks (ARIN) to Amazon.com, Inc. (ARIN) on 2023-12-06 14:06 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":184474,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:50:26+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Psychz Networks (ARIN) to Amazon.com, Inc. (ARIN) on 2023-12-06 14:06 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":184474,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:53:54+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from Psychz Networks (ARIN) to Amazon.com, Inc. (ARIN) on 2023-12-06 14:06 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."}],"ecb46af0a594de75":[{"raw_change_id":130014,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:22:00+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2013-08-19 and allocated (dated 2013-08-20) on 2013-08-21. 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":130014,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:05:30+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2013-08-19 and allocated (dated 2013-08-20) on 2013-08-21. 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":130014,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:48:06+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2013-08-19 and allocated (dated 2013-08-20) on 2013-08-21. 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":130014,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:51:07+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2013-08-19 and allocated (dated 2013-08-20) on 2013-08-21. 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 2023-12-06)"}}