{"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":"153.45.0.0/16","resource_type":"ipv4","page":"https://rirtracker.com/ip/153.45.0.0-153.45.255.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2025-07-02)"},"current_holder":{"rir":"ARIN","org":"Snowflake, Inc.","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":40848,"date":"2025-07-02T11:08:53Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"HP Inc.","recipient_org":"Snowflake, Inc.","range":"153.45.0.0/16","log":"ARIN"},{"id":27656,"date":"2022-04-04T20:37:03Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Hewlett-Packard Company","recipient_org":"HP Inc.","range":"153.45.0.0/16","log":"ARIN"}],"events":[{"event_id":"58846436b1813aee","registry":"ARIN","report_date":"2025-07-02","source":"arin_issued","raw_action":"ADD","raw_line":"Add 153.45.0.0-153.45.255.255","resource_type":"ipv4","resource":"153.45.0.0/16","start":"153.45.0.0","end":"153.45.255.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-ARIN transfer","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"HP Inc.","recipient_organization":"Snowflake, Inc.","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:31+00:00","page":"https://rirtracker.com/ip/153.45.0.0-153.45.255.255/#e-58846436b1813aee","report_page":"https://rirtracker.com/arin/reports/2025-07-02/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/153.45.0.0-153.45.255.255.json","explanation":"ARIN's transfer log records a transfer from HP Inc. (ARIN) to Snowflake, Inc. (ARIN) on 2025-07-02 11:08 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-July/006045.html","retrieved_at":"2026-10-12T18:43:05+00:00","summary":"ARIN-Issued report for 2025-07-02: \"Add 153.45.0.0-153.45.255.255\""},{"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 2025-07-02 11:08 UTC, HP Inc. (ARIN) to Snowflake, Inc. (ARIN); resources moved: 153.45.0.0/16"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20250701.gz","retrieved_at":"2026-10-13T00:02:37+00:00","summary":"ARIN delegated statistics 2025-07-01 (produced 2025-07-01T13:01:13+00:00), before the report: allocated (dated 1991-09-23)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20250703.gz","retrieved_at":"2026-10-13T00:02:42+00:00","summary":"ARIN delegated statistics 2025-07-03 (produced 2025-07-03T13:01:12+00:00), after the report: allocated (dated 2025-07-02)"}]},{"event_id":"b35b0d6d9b2da003","registry":"ARIN","report_date":"2022-04-04","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"153.45.0.0/16","start":"153.45.0.0","end":"153.45.255.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Hewlett-Packard Company","recipient_organization":"HP Inc.","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:01+00:00","page":"https://rirtracker.com/ip/153.45.0.0-153.45.255.255/#e-b35b0d6d9b2da003","report_page":"https://rirtracker.com/arin/reports/2022-04-04/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/153.45.0.0-153.45.255.255.json","observed":"Merger/acquisition: Hewlett-Packard Company (ARIN) to HP Inc. (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Hewlett-Packard Company (ARIN) to HP Inc. (ARIN) on 2022-04-04 20:37 UTC. The registration changed hands; it is not a new allocation from ARIN. ARIN-Issued and ARIN's statistics don't show this change; only the transfer log records it.","evidence":[{"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: MERGER_ACQUISITION on 2022-04-04 20:37 UTC, Hewlett-Packard Company (ARIN) to HP Inc. (ARIN); resources moved: 153.45.0.0/16"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2022/delegated-arin-extended-20220403.gz","retrieved_at":"2026-10-12T22:59:19+00:00","summary":"ARIN delegated statistics 2022-04-03 (produced 2022-04-03T13:00:10+00:00), before the report: allocated (dated 1991-09-23)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2022/delegated-arin-extended-20220405.gz","retrieved_at":"2026-10-12T22:59:23+00:00","summary":"ARIN delegated statistics 2022-04-05 (produced 2022-04-05T13:00:10+00:00), after the report: allocated (dated 1991-09-23)"}]}],"classification_history":{"58846436b1813aee":[{"raw_change_id":194875,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T04:07:08+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from HP Inc. (ARIN) to Snowflake, Inc. (ARIN) on 2025-07-02 11:08 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":194875,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:08:03+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from HP Inc. (ARIN) to Snowflake, Inc. (ARIN) on 2025-07-02 11:08 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":194875,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:50:57+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from HP Inc. (ARIN) to Snowflake, Inc. (ARIN) on 2025-07-02 11:08 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":194875,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:31+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from HP Inc. (ARIN) to Snowflake, Inc. (ARIN) on 2025-07-02 11:08 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."}],"b35b0d6d9b2da003":[{"raw_change_id":565370,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:01+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Hewlett-Packard Company (ARIN) to HP Inc. (ARIN) on 2022-04-04 20:37 UTC. The registration changed hands; it is not a new allocation from ARIN. ARIN-Issued and ARIN's statistics don't show this change; only the transfer log records it."}]},"arin_statistics_now":{"status":"allocated (dated 2025-07-02)"}}