{"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":"57.84.0.0/16","resource_type":"ipv4","page":"https://rirtracker.com/ip/57.84.0.0-57.84.255.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2024-01-25)"},"current_holder":{"rir":"ARIN","org":"Amazon.com, Inc.","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":101760,"date":"2024-01-25T19:00:00Z","type":"RESOURCE_TRANSFER","source_rir":"RIPE NCC","recipient_rir":"ARIN","source_org":"SITA Switzerland Sarl","recipient_org":null,"range":"57.84.0.0/16","log":"RIPE NCC"},{"id":34206,"date":"2024-01-25T14:42:17Z","type":"RESOURCE_TRANSFER","source_rir":"RIPE NCC","recipient_rir":"ARIN","source_org":"SITA Switzerland Sarl","recipient_org":"Amazon.com, Inc.","range":"57.84.0.0/16","log":"ARIN"}],"events":[{"event_id":"29350fc8aa0d8e8f","registry":"ARIN","report_date":"2024-01-25","source":"arin_issued","raw_action":"ADD","raw_line":"Add 57.84.0.0-57.84.255.255","resource_type":"ipv4","resource":"57.84.0.0/16","start":"57.84.0.0","end":"57.84.255.255","classification":"INTER_RIR_TRANSFER_IN","classification_label":"Inter-RIR transfer into ARIN","confidence":"CONFIRMED","source_rir":"RIPE NCC","recipient_rir":"ARIN","source_organization":"SITA Switzerland Sarl","recipient_organization":"Amazon.com, Inc.","inventory_effect":"Transferred into ARIN administration; not a new issuance","inventory_effect_code":"TRANSFER_IN","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:53:57+00:00","page":"https://rirtracker.com/ip/57.84.0.0-57.84.255.255/#e-29350fc8aa0d8e8f","report_page":"https://rirtracker.com/arin/reports/2024-01-25/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/57.84.0.0-57.84.255.255.json","same_transfer_as":"cdcc397b81f2881c","explanation":"ARIN's transfer log records a transfer from SITA Switzerland Sarl (RIPE NCC) to Amazon.com, Inc. (ARIN) on 2024-01-25 14:42 UTC: it came to ARIN from the RIPE NCC. It was already issued by another registry, so this is not a new issuance.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2024-January/005522.html","retrieved_at":"2026-10-12T18:42:27+00:00","summary":"ARIN-Issued report for 2024-01-25: \"Add 57.84.0.0-57.84.255.255\""},{"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 2024-01-25 14:42 UTC, SITA Switzerland Sarl (RIPE NCC) to Amazon.com, Inc. (ARIN); resources moved: 57.84.0.0/16"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20240124.gz","retrieved_at":"2026-10-12T23:33:58+00:00","summary":"ARIN delegated statistics 2024-01-24 (produced 2024-01-24T14:00:43+00:00), before the report: not listed"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20240126.gz","retrieved_at":"2026-10-12T23:34:15+00:00","summary":"ARIN delegated statistics 2024-01-26 (produced 2024-01-26T14:00:44+00:00), after the report: allocated (dated 2024-01-25)"}]},{"event_id":"cdcc397b81f2881c","registry":"RIPE NCC","report_date":"2024-01-25","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"57.84.0.0/16","start":"57.84.0.0","end":"57.84.255.255","classification":"INTER_RIR_TRANSFER_OUT","classification_label":"Inter-RIR transfer out of the RIPE NCC","confidence":"CONFIRMED","source_rir":"RIPE NCC","recipient_rir":"ARIN","source_organization":"SITA Switzerland Sarl","recipient_organization":null,"inventory_effect":"Transferred out of RIPE NCC administration; not offered to RIPE NCC applicants","inventory_effect_code":"TRANSFER_OUT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:49:52+00:00","page":"https://rirtracker.com/ip/57.84.0.0-57.84.255.255/#e-cdcc397b81f2881c","report_page":"https://rirtracker.com/ripe/reports/2024-01-25/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/57.84.0.0-57.84.255.255.json","observed":"Transfer: SITA Switzerland Sarl (RIPE NCC) to (no name) (ARIN)","same_transfer_as":"29350fc8aa0d8e8f","explanation":"The RIPE NCC's transfer log records a transfer from SITA Switzerland Sarl (RIPE NCC) to an unnamed organization (ARIN) on 2024-01-25 19:00 UTC: it left the RIPE NCC for ARIN. It is not a new allocation and is not offered to RIPE NCC applicants.","evidence":[{"type":"transfer","url":"https://ftp.ripe.net/pub/stats/ripencc/transfers/transfers_latest.json","retrieved_at":"2026-10-13T21:49:37+00:00","summary":"Transfer log: RESOURCE_TRANSFER on 2024-01-25 19:00 UTC, SITA Switzerland Sarl (RIPE NCC) to (no name) (ARIN); resources moved: 57.84.0.0/16"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2024/delegated-ripencc-extended-20240124.bz2","retrieved_at":"2026-10-13T00:21:54+00:00","summary":"RIPE NCC delegated statistics 2024-01-24 (produced 2024-01-24T22:59:59+00:00), before the change: assigned (dated 1993-06-21)"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2024/delegated-ripencc-extended-20240125.bz2","retrieved_at":"2026-10-13T00:21:57+00:00","summary":"RIPE NCC delegated statistics 2024-01-25 (produced 2024-01-25T22:59:59+00:00), after the change: not listed"}]}],"classification_history":{"29350fc8aa0d8e8f":[{"raw_change_id":185215,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T04:00:57+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from SITA Switzerland Sarl (RIPE NCC) to Amazon.com, Inc. (ARIN) on 2024-01-25 14:42 UTC: it came to ARIN from the RIPE NCC. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":185215,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:07:37+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from SITA Switzerland Sarl (RIPE NCC) to Amazon.com, Inc. (ARIN) on 2024-01-25 14:42 UTC: it came to ARIN from the RIPE NCC. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":185215,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:50:29+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from SITA Switzerland Sarl (RIPE NCC) to Amazon.com, Inc. (ARIN) on 2024-01-25 14:42 UTC: it came to ARIN from the RIPE NCC. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":185215,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:53:57+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from SITA Switzerland Sarl (RIPE NCC) to Amazon.com, Inc. (ARIN) on 2024-01-25 14:42 UTC: it came to ARIN from the RIPE NCC. It was already issued by another registry, so this is not a new issuance."}],"cdcc397b81f2881c":[{"raw_change_id":102312,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T03:03:41+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from SITA Switzerland Sarl (RIPE NCC) to an unnamed organization (ARIN) on 2024-01-25 19:00 UTC: it left the RIPE NCC for ARIN. It is not a new allocation and is not offered to RIPE NCC applicants."},{"raw_change_id":102312,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:04:32+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from SITA Switzerland Sarl (RIPE NCC) to an unnamed organization (ARIN) on 2024-01-25 19:00 UTC: it left the RIPE NCC for ARIN. It is not a new allocation and is not offered to RIPE NCC applicants."},{"raw_change_id":102312,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:47:00+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from SITA Switzerland Sarl (RIPE NCC) to an unnamed organization (ARIN) on 2024-01-25 19:00 UTC: it left the RIPE NCC for ARIN. It is not a new allocation and is not offered to RIPE NCC applicants."},{"raw_change_id":102312,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:49:52+00:00","current":1,"public_explanation":"The RIPE NCC's transfer log records a transfer from SITA Switzerland Sarl (RIPE NCC) to an unnamed organization (ARIN) on 2024-01-25 19:00 UTC: it left the RIPE NCC for ARIN. It is not a new allocation and is not offered to RIPE NCC applicants."}]},"arin_statistics_now":{"status":"allocated (dated 2024-01-25)"}}