{"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":"104.192.31.0/24","resource_type":"ipv4","page":"https://rirtracker.com/ip/104.192.31.0-104.192.31.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2024-12-23)"},"current_holder":{"rir":"ARIN","org":"Select Medical Corporation","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":38126,"date":"2024-12-23T21:03:14Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Synapse Global Corporation","recipient_org":"Select Medical Corporation","range":"104.192.31.0/24","log":"ARIN"}],"events":[{"event_id":"9789849232b94cd1","registry":"ARIN","report_date":"2024-12-23","source":"arin_issued","raw_action":"ADD","raw_line":"Add 104.192.31.0-104.192.31.255","resource_type":"ipv4","resource":"104.192.31.0/24","start":"104.192.31.0","end":"104.192.31.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-ARIN transfer","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Synapse Global Corporation","recipient_organization":"Select Medical Corporation","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:18+00:00","page":"https://rirtracker.com/ip/104.192.31.0-104.192.31.255/#e-9789849232b94cd1","report_page":"https://rirtracker.com/arin/reports/2024-12-23/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/104.192.31.0-104.192.31.255.json","explanation":"ARIN's transfer log records a transfer from Synapse Global Corporation (ARIN) to Select Medical Corporation (ARIN) on 2024-12-23 21:03 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-December/005854.html","retrieved_at":"2026-10-12T18:42:50+00:00","summary":"ARIN-Issued report for 2024-12-23: \"Add 104.192.31.0-104.192.31.255\""},{"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 2024-12-23 21:03 UTC, Synapse Global Corporation (ARIN) to Select Medical Corporation (ARIN); resources moved: 104.192.31.0/24"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20241222.gz","retrieved_at":"2026-10-12T23:51:52+00:00","summary":"ARIN delegated statistics 2024-12-22 (produced 2024-12-22T14:01:06+00:00), before the report: allocated (dated 2014-08-22)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20241224.gz","retrieved_at":"2026-10-12T23:51:57+00:00","summary":"ARIN delegated statistics 2024-12-24 (produced 2024-12-24T14:01:07+00:00), after the report: allocated (dated 2024-12-23)"}]}],"classification_history":{"9789849232b94cd1":[{"raw_change_id":191177,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T04:04:33+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Synapse Global Corporation (ARIN) to Select Medical Corporation (ARIN) on 2024-12-23 21:03 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":191177,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:07:53+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Synapse Global Corporation (ARIN) to Select Medical Corporation (ARIN) on 2024-12-23 21:03 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":191177,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:50:47+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Synapse Global Corporation (ARIN) to Select Medical Corporation (ARIN) on 2024-12-23 21:03 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":191177,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:18+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from Synapse Global Corporation (ARIN) to Select Medical Corporation (ARIN) on 2024-12-23 21:03 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 2024-12-23)"}}