{"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":"AS394027","resource_type":"asn","page":"https://rirtracker.com/asn/394027/","statistics_now":{"registry":"ARIN","status":"assigned (dated 2015-05-26)"},"current_holder":{"rir":"ARIN","org":"Black Duck Software, Inc.","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":5085,"date":"2026-05-19T20:17:57Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Synopsys Inc.","recipient_org":"Black Duck Software, Inc.","range":"AS394027","log":"ARIN"},{"id":954,"date":"2018-04-03T14:02:00Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Black Duck Software, Inc","recipient_org":"Synopsys Inc.","range":"AS394027","log":"ARIN"}],"events":[{"event_id":"cdb4c8c1cccb8da1","registry":"ARIN","report_date":"2026-05-19","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"asn","resource":"AS394027","start":394027,"end":394027,"classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Synopsys Inc.","recipient_organization":"Black Duck Software, Inc.","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:28+00:00","page":"https://rirtracker.com/asn/394027/#e-cdb4c8c1cccb8da1","report_page":"https://rirtracker.com/arin/reports/2026-05-19/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/394027.json","observed":"Merger/acquisition: Synopsys Inc. (ARIN) to Black Duck Software, Inc. (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Synopsys Inc. (ARIN) to Black Duck Software, Inc. (ARIN) on 2026-05-19 20:17 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 2026-05-19 20:17 UTC, Synopsys Inc. (ARIN) to Black Duck Software, Inc. (ARIN); resources moved: AS394027"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260518","retrieved_at":"2026-10-09T19:01:31+00:00","summary":"ARIN delegated statistics 2026-05-18 (produced 2026-05-18T13:00:40+00:00), before the report: assigned (dated 2015-05-26)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260520","retrieved_at":"2026-10-09T19:01:37+00:00","summary":"ARIN delegated statistics 2026-05-20 (produced 2026-05-20T13:00:40+00:00), after the report: assigned (dated 2015-05-26)"}]},{"event_id":"57fbeee7b77367df","registry":"ARIN","report_date":"2018-04-03","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"asn","resource":"AS394027","start":394027,"end":394027,"classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Black Duck Software, Inc","recipient_organization":"Synopsys Inc.","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:35+00:00","page":"https://rirtracker.com/asn/394027/#e-57fbeee7b77367df","report_page":"https://rirtracker.com/arin/reports/2018-04-03/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/394027.json","observed":"Merger/acquisition: Black Duck Software, Inc (ARIN) to Synopsys Inc. (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Black Duck Software, Inc (ARIN) to Synopsys Inc. (ARIN) on 2018-04-03 14:02 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 2018-04-03 14:02 UTC, Black Duck Software, Inc (ARIN) to Synopsys Inc. (ARIN); resources moved: AS394027"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20180402.gz","retrieved_at":"2026-10-12T21:44:07+00:00","summary":"ARIN delegated statistics 2018-04-02 (produced 2018-04-02T05:11:56+00:00), before the report: assigned (dated 2015-05-26)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20180404.gz","retrieved_at":"2026-10-12T21:44:12+00:00","summary":"ARIN delegated statistics 2018-04-04 (produced 2018-04-04T05:11:48+00:00), after the report: assigned (dated 2015-05-26)"}]}],"classification_history":{"cdb4c8c1cccb8da1":[{"raw_change_id":576155,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:28+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Synopsys Inc. (ARIN) to Black Duck Software, Inc. (ARIN) on 2026-05-19 20:17 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."}],"57fbeee7b77367df":[{"raw_change_id":554374,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:35+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Black Duck Software, Inc (ARIN) to Synopsys Inc. (ARIN) on 2018-04-03 14:02 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":"assigned (dated 2015-05-26)"}}