{"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":"198.186.172.0/24","resource_type":"ipv4","page":"https://rirtracker.com/ip/198.186.172.0-198.186.172.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2025-03-10)"},"current_holder":{"rir":"ARIN","org":"VectorVMS","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":39298,"date":"2025-03-10T12:26:21Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Fujitsu North America, Inc.","recipient_org":"VectorVMS","range":"198.186.172.0/24","log":"ARIN"},{"id":28908,"date":"2022-08-22T22:48:27Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Fujitsu America Inc.","recipient_org":"Fujitsu North America, Inc.","range":"198.186.172.0/24","log":"ARIN"},{"id":12491,"date":"2018-03-07T12:43:47Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Amdahl Corporation","recipient_org":"Fujitsu America Inc.","range":"198.186.172.0/24","log":"ARIN"}],"events":[{"event_id":"621222dd58b41e36","registry":"ARIN","report_date":"2025-03-10","source":"arin_issued","raw_action":"ADD","raw_line":"Add 198.186.172.0-198.186.172.255","resource_type":"ipv4","resource":"198.186.172.0/24","start":"198.186.172.0","end":"198.186.172.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-ARIN transfer","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Fujitsu North America, Inc.","recipient_organization":"VectorVMS","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:24+00:00","page":"https://rirtracker.com/ip/198.186.172.0-198.186.172.255/#e-621222dd58b41e36","report_page":"https://rirtracker.com/arin/reports/2025-03-10/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/198.186.172.0-198.186.172.255.json","explanation":"ARIN's transfer log records a transfer from Fujitsu North America, Inc. (ARIN) to VectorVMS (ARIN) on 2025-03-10 12:26 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-March/005931.html","retrieved_at":"2026-10-12T18:42:57+00:00","summary":"ARIN-Issued report for 2025-03-10: \"Add 198.186.172.0-198.186.172.255\""},{"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 2025-03-10 12:26 UTC, Fujitsu North America, Inc. (ARIN) to VectorVMS (ARIN); resources moved: 198.186.172.0/24"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20250309.gz","retrieved_at":"2026-10-12T23:56:09+00:00","summary":"ARIN delegated statistics 2025-03-09 (produced 2025-03-09T13:01:07+00:00), before the report: allocated (dated 1993-09-15)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20250311.gz","retrieved_at":"2026-10-12T23:56:14+00:00","summary":"ARIN delegated statistics 2025-03-11 (produced 2025-03-11T13:01:06+00:00), after the report: allocated (dated 2025-03-10)"}]},{"event_id":"ba406c8aaf2db9ac","registry":"ARIN","report_date":"2022-08-22","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"198.186.172.0/24","start":"198.186.172.0","end":"198.186.172.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Fujitsu America Inc.","recipient_organization":"Fujitsu North America, Inc.","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:03+00:00","page":"https://rirtracker.com/ip/198.186.172.0-198.186.172.255/#e-ba406c8aaf2db9ac","report_page":"https://rirtracker.com/arin/reports/2022-08-22/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/198.186.172.0-198.186.172.255.json","observed":"Merger/acquisition: Fujitsu America Inc. (ARIN) to Fujitsu North America, Inc. (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Fujitsu America Inc. (ARIN) to Fujitsu North America, Inc. (ARIN) on 2022-08-22 22:48 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 2022-08-22 22:48 UTC, Fujitsu America Inc. (ARIN) to Fujitsu North America, Inc. (ARIN); resources moved: 198.186.172.0/24"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2022/delegated-arin-extended-20220821.gz","retrieved_at":"2026-10-12T23:06:29+00:00","summary":"ARIN delegated statistics 2022-08-21 (produced 2022-08-21T13:00:10+00:00), before the report: allocated (dated 1993-09-15)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2022/delegated-arin-extended-20220823.gz","retrieved_at":"2026-10-12T23:06:34+00:00","summary":"ARIN delegated statistics 2022-08-23 (produced 2022-08-23T13:00:10+00:00), after the report: allocated (dated 1993-09-15)"}]},{"event_id":"c0159b4fd4ad0d8e","registry":"ARIN","report_date":"2018-03-07","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"198.186.172.0/24","start":"198.186.172.0","end":"198.186.172.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Amdahl Corporation","recipient_organization":"Fujitsu America Inc.","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:34+00:00","page":"https://rirtracker.com/ip/198.186.172.0-198.186.172.255/#e-c0159b4fd4ad0d8e","report_page":"https://rirtracker.com/arin/reports/2018-03-07/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/198.186.172.0-198.186.172.255.json","observed":"Merger/acquisition: Amdahl Corporation (ARIN) to Fujitsu America Inc. (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Amdahl Corporation (ARIN) to Fujitsu America Inc. (ARIN) on 2018-03-07 12:43 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 2018-03-07 12:43 UTC, Amdahl Corporation (ARIN) to Fujitsu America Inc. (ARIN); resources moved: 198.186.172.0/24"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20180306.gz","retrieved_at":"2026-10-12T21:42:48+00:00","summary":"ARIN delegated statistics 2018-03-06 (produced 2018-03-06T06:12:40+00:00), before the report: assigned (dated 1993-09-15)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20180308.gz","retrieved_at":"2026-10-12T21:42:53+00:00","summary":"ARIN delegated statistics 2018-03-08 (produced 2018-03-08T06:11:43+00:00), after the report: assigned (dated 1993-09-15)"}]}],"classification_history":{"621222dd58b41e36":[{"raw_change_id":192843,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T04:05:39+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Fujitsu North America, Inc. (ARIN) to VectorVMS (ARIN) on 2025-03-10 12:26 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":192843,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:07:58+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Fujitsu North America, Inc. (ARIN) to VectorVMS (ARIN) on 2025-03-10 12:26 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":192843,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:50:51+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Fujitsu North America, Inc. (ARIN) to VectorVMS (ARIN) on 2025-03-10 12:26 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":192843,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:24+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from Fujitsu North America, Inc. (ARIN) to VectorVMS (ARIN) on 2025-03-10 12:26 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."}],"ba406c8aaf2db9ac":[{"raw_change_id":566218,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:03+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Fujitsu America Inc. (ARIN) to Fujitsu North America, Inc. (ARIN) on 2022-08-22 22:48 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."}],"c0159b4fd4ad0d8e":[{"raw_change_id":554119,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:34+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Amdahl Corporation (ARIN) to Fujitsu America Inc. (ARIN) on 2018-03-07 12:43 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 2025-03-10)"}}