{"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":"AS2153","resource_type":"asn","page":"https://rirtracker.com/asn/2153/","statistics_now":{"registry":"ARIN","status":"assigned (dated 2024-07-08)"},"current_holder":{"rir":"ARIN","org":"CENIC","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":4039,"date":"2024-07-08T21:00:25Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"California State University, Office of the Chancellor","recipient_org":"CENIC","range":"AS2153","log":"ARIN"}],"events":[{"event_id":"76cebfb7687dfaa0","registry":"ARIN","report_date":"2024-07-08","source":"arin_issued","raw_action":"ADD","raw_line":"Add AS2153","resource_type":"asn","resource":"AS2153","start":2153,"end":2153,"classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-ARIN transfer","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"California State University, Office of the Chancellor","recipient_organization":"CENIC","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:07+00:00","page":"https://rirtracker.com/asn/2153/#e-76cebfb7687dfaa0","report_page":"https://rirtracker.com/arin/reports/2024-07-08/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/2153.json","explanation":"ARIN's transfer log records a transfer from California State University, Office of the Chancellor (ARIN) to CENIC (ARIN) on 2024-07-08 21:00 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-July/005686.html","retrieved_at":"2026-10-12T18:42:40+00:00","summary":"ARIN-Issued report for 2024-07-08: \"Add AS2153\""},{"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 2024-07-08 21:00 UTC, California State University, Office of the Chancellor (ARIN) to CENIC (ARIN); resources moved: AS2153"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20240707.gz","retrieved_at":"2026-10-12T23:42:53+00:00","summary":"ARIN delegated statistics 2024-07-07 (produced 2024-07-07T13:00:44+00:00), before the report: assigned (dated 1993-01-14)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20240709.gz","retrieved_at":"2026-10-12T23:42:59+00:00","summary":"ARIN delegated statistics 2024-07-09 (produced 2024-07-09T13:00:45+00:00), after the report: assigned (dated 2024-07-08)"}]}],"classification_history":{"76cebfb7687dfaa0":[{"raw_change_id":188078,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T04:02:41+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from California State University, Office of the Chancellor (ARIN) to CENIC (ARIN) on 2024-07-08 21:00 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":188078,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:07:45+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from California State University, Office of the Chancellor (ARIN) to CENIC (ARIN) on 2024-07-08 21:00 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":188078,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:50:37+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from California State University, Office of the Chancellor (ARIN) to CENIC (ARIN) on 2024-07-08 21:00 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":188078,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:07+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from California State University, Office of the Chancellor (ARIN) to CENIC (ARIN) on 2024-07-08 21:00 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."}]},"arin_statistics_now":{"status":"assigned (dated 2024-07-08)"}}