{"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":"152.228.32.0/22","resource_type":"ipv4","page":"https://rirtracker.com/ip/152.228.32.0-152.228.35.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2025-01-23)"},"current_holder":{"rir":"ARIN","org":"CrowdStrike, Inc.","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":38565,"date":"2025-01-23T20:24:48Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Valparaiso University","recipient_org":"CrowdStrike, Inc.","range":"152.228.32.0/22","log":"ARIN"}],"events":[{"event_id":"981b24f5317ade86","registry":"ARIN","report_date":"2025-01-23","source":"arin_issued","raw_action":"ADD","raw_line":"Add 152.228.32.0-152.228.35.255","resource_type":"ipv4","resource":"152.228.32.0/22","start":"152.228.32.0","end":"152.228.35.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-ARIN transfer","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Valparaiso University","recipient_organization":"CrowdStrike, Inc.","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:20+00:00","page":"https://rirtracker.com/ip/152.228.32.0-152.228.35.255/#e-981b24f5317ade86","report_page":"https://rirtracker.com/arin/reports/2025-01-23/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/152.228.32.0-152.228.35.255.json","piece_of":{"resource":"152.228.0.0/16","page":"https://rirtracker.com/ip/152.228.0.0-152.228.255.255/"},"explanation":"ARIN's transfer log records a transfer from Valparaiso University (ARIN) to CrowdStrike, Inc. (ARIN) on 2025-01-23 20:24 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/2025-January/005885.html","retrieved_at":"2026-10-12T18:42:52+00:00","summary":"ARIN-Issued report for 2025-01-23: \"Add 152.228.32.0-152.228.35.255\""},{"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 2025-01-23 20:24 UTC, Valparaiso University (ARIN) to CrowdStrike, Inc. (ARIN); resources moved: 152.228.32.0/22"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20250122.gz","retrieved_at":"2026-10-12T23:53:28+00:00","summary":"ARIN delegated statistics 2025-01-22 (produced 2025-01-22T14:01:06+00:00), before the report: allocated (dated 1991-09-30)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20250124.gz","retrieved_at":"2026-10-12T23:53:44+00:00","summary":"ARIN delegated statistics 2025-01-24 (produced 2025-01-24T14:01:06+00:00), after the report: allocated (dated 2025-01-23)"}]}],"classification_history":{"981b24f5317ade86":[{"raw_change_id":191975,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T04:05:05+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Valparaiso University (ARIN) to CrowdStrike, Inc. (ARIN) on 2025-01-23 20:24 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":191975,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:07:55+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Valparaiso University (ARIN) to CrowdStrike, Inc. (ARIN) on 2025-01-23 20:24 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":191975,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:50:49+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Valparaiso University (ARIN) to CrowdStrike, Inc. (ARIN) on 2025-01-23 20:24 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":191975,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:20+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from Valparaiso University (ARIN) to CrowdStrike, Inc. (ARIN) on 2025-01-23 20:24 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 2025-01-23)"}}