{"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":"216.83.172.0/23","resource_type":"ipv4","page":"https://rirtracker.com/ip/216.83.172.0-216.83.173.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2024-04-19)"},"current_holder":{"rir":"ARIN","org":"Markley Network Services, LLC","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":35284,"date":"2024-04-19T21:19:59Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Sungard Availability Network Solutions, Inc.","recipient_org":"Markley Network Services, LLC","range":"216.83.172.0/23","log":"ARIN"}],"events":[{"event_id":"38320881c42274a4","registry":"ARIN","report_date":"2024-04-19","source":"arin_issued","raw_action":"ADD","raw_line":"Add 216.83.172.0-216.83.173.255","resource_type":"ipv4","resource":"216.83.172.0/23","start":"216.83.172.0","end":"216.83.173.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-ARIN transfer","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Sungard Availability Network Solutions, Inc.","recipient_organization":"Markley Network Services, LLC","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:03+00:00","page":"https://rirtracker.com/ip/216.83.172.0-216.83.173.255/#e-38320881c42274a4","report_page":"https://rirtracker.com/arin/reports/2024-04-19/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/216.83.172.0-216.83.173.255.json","explanation":"ARIN's transfer log records a transfer from Sungard Availability Network Solutions, Inc. (ARIN) to Markley Network Services, LLC (ARIN) on 2024-04-19 21:19 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/2024-April/005607.html","retrieved_at":"2026-10-12T18:42:33+00:00","summary":"ARIN-Issued report for 2024-04-19: \"Add 216.83.172.0-216.83.173.255\""},{"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 2024-04-19 21:19 UTC, Sungard Availability Network Solutions, Inc. (ARIN) to Markley Network Services, LLC (ARIN); resources moved: 216.83.172.0/23"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20240418.gz","retrieved_at":"2026-10-12T23:38:32+00:00","summary":"ARIN delegated statistics 2024-04-18 (produced 2024-04-18T13:00:46+00:00), before the report: allocated (dated 2000-07-05)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20240420.gz","retrieved_at":"2026-10-12T23:38:49+00:00","summary":"ARIN delegated statistics 2024-04-20 (produced 2024-04-20T13:00:47+00:00), after the report: allocated (dated 2024-04-19)"}]}],"classification_history":{"38320881c42274a4":[{"raw_change_id":186875,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T04:02:01+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Sungard Availability Network Solutions, Inc. (ARIN) to Markley Network Services, LLC (ARIN) on 2024-04-19 21:19 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":186875,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:07:42+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Sungard Availability Network Solutions, Inc. (ARIN) to Markley Network Services, LLC (ARIN) on 2024-04-19 21:19 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":186875,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:50:34+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Sungard Availability Network Solutions, Inc. (ARIN) to Markley Network Services, LLC (ARIN) on 2024-04-19 21:19 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":186875,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:03+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from Sungard Availability Network Solutions, Inc. (ARIN) to Markley Network Services, LLC (ARIN) on 2024-04-19 21:19 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 2024-04-19)"}}