{"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":"54.96.0.0 - 54.175.255.255","resource_type":"ipv4","page":"https://rirtracker.com/ip/54.96.0.0-54.175.255.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 1992-03-17), allocated (dated 2014-10-23), allocated (dated 2021-12-27), allocated (dated 2022-09-26), allocated (dated 2022-11-07), allocated (dated 2023-03-10), allocated (dated 2023-06-27)"},"current_holder":{"rir":null,"org":null,"how":null},"rdap_snapshots":[],"transfers":[{"id":109678,"date":"2024-12-05T19:00:00Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_org":null,"recipient_org":"Microsoft Limited","range":"54.104.0.0/16","log":"RIPE NCC"},{"id":109679,"date":"2024-12-05T19:00:00Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"RIPE 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NCC"},{"id":37452,"date":"2024-12-05T15:04:32Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_org":"Merck and Co., Inc.","recipient_org":"Microsoft Limited [ORG-MA42-RIPE]","range":"54.104.0.0/16","log":"ARIN"},{"id":37453,"date":"2024-12-05T15:04:32Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_org":"Merck and Co., Inc.","recipient_org":"Microsoft Limited [ORG-MA42-RIPE]","range":"54.119.0.0/16","log":"ARIN"},{"id":37454,"date":"2024-12-05T15:04:32Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_org":"Merck and Co., Inc.","recipient_org":"Microsoft Limited [ORG-MA42-RIPE]","range":"54.128.0.0/16","log":"ARIN"},{"id":37455,"date":"2024-12-05T15:04:32Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_org":"Merck and Co., Inc.","recipient_org":"Microsoft Limited [ORG-MA42-RIPE]","range":"54.133.0.0/16","log":"ARIN"},{"id":37456,"date":"2024-12-05T15:04:32Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_org":"Merck and Co., Inc.","recipient_org":"Microsoft Limited [ORG-MA42-RIPE]","range":"54.135.0.0/16","log":"ARIN"},{"id":37457,"date":"2024-12-05T15:04:32Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_org":"Merck and Co., Inc.","recipient_org":"Microsoft Limited [ORG-MA42-RIPE]","range":"54.139.0.0/16","log":"ARIN"},{"id":32313,"date":"2023-06-27T15:15:27Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Merck and Co., Inc.","recipient_org":"Amazon.com, Inc.","range":"54.100.0.0/16","log":"ARIN"},{"id":32312,"date":"2023-06-27T15:15:27Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Merck and Co., Inc.","recipient_org":"Amazon.com, Inc.","range":"54.107.0.0/16","log":"ARIN"},{"id":32311,"date":"2023-06-27T15:15:27Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Merck and Co., Inc.","recipient_org":"Amazon.com, Inc.","range":"54.121.0.0/16","log":"ARIN"},{"id":32310,"date":"2023-06-27T15:15:27Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Merck and Co., Inc.","recipient_org":"Amazon.com, Inc.","range":"54.124.0.0/16","log":"ARIN"},{"id":32309,"date":"2023-06-27T15:15:27Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Merck and Co., Inc.","recipient_org":"Amazon.com, Inc.","range":"54.132.0.0/16","log":"ARIN"},{"id":30948,"date":"2023-03-10T18:14:34Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Merck and Co., Inc.","recipient_org":"Amazon.com, 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Inc.","range":"54.127.0.0/16","log":"ARIN"},{"id":29543,"date":"2022-11-07T22:18:18Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Merck and Co., Inc.","recipient_org":"Amazon.com, Inc.","range":"54.130.0.0/16","log":"ARIN"},{"id":29542,"date":"2022-11-07T22:18:18Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Merck and Co., Inc.","recipient_org":"Amazon.com, Inc.","range":"54.131.0.0/16","log":"ARIN"},{"id":29270,"date":"2022-09-26T18:07:40Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Merck and Co., Inc.","recipient_org":"Amazon.com, Inc.","range":"54.109.0.0/16","log":"ARIN"},{"id":29271,"date":"2022-09-26T18:07:40Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Merck and Co., Inc.","recipient_org":"Amazon.com, Inc.","range":"54.113.0.0/16","log":"ARIN"},{"id":29272,"date":"2022-09-26T18:07:40Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Merck and Co., Inc.","recipient_org":"Amazon.com, Inc.","range":"54.137.0.0/16","log":"ARIN"},{"id":26516,"date":"2021-12-27T20:37:00Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Merck and Co., Inc.","recipient_org":"Amazon.com, Inc.","range":"54.102.0.0/16","log":"ARIN"},{"id":26509,"date":"2021-12-27T20:37:00Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Merck and Co., Inc.","recipient_org":"Amazon.com, Inc.","range":"54.112.0.0/16","log":"ARIN"},{"id":26508,"date":"2021-12-27T20:37:00Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Merck and Co., Inc.","recipient_org":"Amazon.com, Inc.","range":"54.115.0.0/16","log":"ARIN"},{"id":26521,"date":"2021-12-27T20:37:00Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Merck and Co., Inc.","recipient_org":"Amazon.com, Inc.","range":"54.116.0.0/16","log":"ARIN"},{"id":26520,"date":"2021-12-27T20:37:00Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Merck and Co., Inc.","recipient_org":"Amazon.com, Inc.","range":"54.117.0.0/16","log":"ARIN"},{"id":26519,"date":"2021-12-27T20:37:00Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Merck and Co., Inc.","recipient_org":"Amazon.com, Inc.","range":"54.134.0.0/16","log":"ARIN"},{"id":26518,"date":"2021-12-27T20:37:00Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Merck and Co., Inc.","recipient_org":"Amazon.com, Inc.","range":"54.136.0.0/16","log":"ARIN"},{"id":26517,"date":"2021-12-27T20:37:00Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Merck and Co., Inc.","recipient_org":"Amazon.com, Inc.","range":"54.138.0.0/16","log":"ARIN"},{"id":5536,"date":"2014-10-23T23:23:00Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Merck and Co., Inc.","recipient_org":"Amazon Technologies Inc.","range":"54.144.0.0/12","log":"ARIN"},{"id":5499,"date":"2014-06-20T15:08:00Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Merck and Co., Inc.","recipient_org":"Amazon Technologies Inc.","range":"54.160.0.0/12","log":"ARIN"}],"events":[{"event_id":"0ec16db74a89f2dd","registry":"ARIN","report_date":"2013-11-25","source":"arin_issued","raw_action":"ADD","raw_line":"Add 54.96.0.0-54.175.255.255","resource_type":"ipv4","resource":"54.96.0.0 - 54.175.255.255","start":"54.96.0.0","end":"54.175.255.255","classification":"RANGE_REPRESENTATION_CHANGE","classification_label":"Range split/merge or reporting-format change","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:51:09+00:00","page":"https://rirtracker.com/ip/54.96.0.0-54.175.255.255/#e-0ec16db74a89f2dd","report_page":"https://rirtracker.com/arin/reports/2013-11-25/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/54.96.0.0-54.175.255.255.json","explanation":"This range is part of a larger block from which a piece was transferred around 2013-11-25; the rest was re-registered to show the split. ARIN's statistics show it assigned (dated 1992-03-17) on 2013-11-24 and assigned (dated 2013-11-25) on 2013-11-26.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2013-November/001811.html","retrieved_at":"2026-10-12T18:38:09+00:00","summary":"ARIN-Issued report for 2013-11-25: \"Add 54.96.0.0-54.175.255.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2013/delegated-arin-extended-20131124.gz","retrieved_at":"2026-10-12T20:08:02+00:00","summary":"ARIN delegated statistics 2013-11-24 (produced 2013-11-24T06:05:57+00:00), before the report: assigned (dated 1992-03-17)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2013/delegated-arin-extended-20131126.gz","retrieved_at":"2026-10-12T20:08:07+00:00","summary":"ARIN delegated statistics 2013-11-26 (produced 2013-11-26T06:06:10+00:00), after the report: assigned (dated 2013-11-25)"},{"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 2013-11-25 17:13 UTC, Merck and Co., Inc. (ARIN) to Amazon Technologies Inc. (ARIN); resources moved: 54.176.0.0/12"},{"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 2013-11-25 17:13 UTC, Merck and Co., Inc. (ARIN) to Amazon Technologies Inc. (ARIN); resources moved: 54.72.0.0/13"},{"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 2013-11-25 17:13 UTC, Merck and Co., Inc. (ARIN) to Amazon Technologies Inc. (ARIN); resources moved: 54.80.0.0/12"}]}],"classification_history":{"0ec16db74a89f2dd":[{"raw_change_id":130796,"classification_code":"RANGE_REPRESENTATION_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:22:47+00:00","current":0,"public_explanation":"This range is part of a larger block from which a piece was transferred around 2013-11-25; the rest was re-registered to show the split. ARIN's statistics show it assigned (dated 1992-03-17) on 2013-11-24 and assigned (dated 2013-11-25) on 2013-11-26."},{"raw_change_id":130796,"classification_code":"RANGE_REPRESENTATION_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:05:32+00:00","current":0,"public_explanation":"This range is part of a larger block from which a piece was transferred around 2013-11-25; the rest was re-registered to show the split. ARIN's statistics show it assigned (dated 1992-03-17) on 2013-11-24 and assigned (dated 2013-11-25) on 2013-11-26."},{"raw_change_id":130796,"classification_code":"RANGE_REPRESENTATION_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:48:07+00:00","current":0,"public_explanation":"This range is part of a larger block from which a piece was transferred around 2013-11-25; the rest was re-registered to show the split. ARIN's statistics show it assigned (dated 1992-03-17) on 2013-11-24 and assigned (dated 2013-11-25) on 2013-11-26."},{"raw_change_id":130796,"classification_code":"RANGE_REPRESENTATION_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:51:09+00:00","current":1,"public_explanation":"This range is part of a larger block from which a piece was transferred around 2013-11-25; the rest was re-registered to show the split. ARIN's statistics show it assigned (dated 1992-03-17) on 2013-11-24 and assigned (dated 2013-11-25) on 2013-11-26."}]},"arin_statistics_now":{"status":"allocated (dated 1992-03-17), allocated (dated 2014-10-23), allocated (dated 2021-12-27), allocated (dated 2022-09-26), allocated (dated 2022-11-07), allocated (dated 2023-03-10), allocated (dated 2023-06-27)"}}