{"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":"AS40912","resource_type":"asn","page":"https://rirtracker.com/asn/40912/","statistics_now":{"registry":"ARIN","status":"assigned (dated 2008-05-19)"},"current_holder":{"rir":"ARIN","org":"Trustwave Holdings, Inc.","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":1030,"date":"2018-05-18T17:51:21Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"M86 Security","recipient_org":"Trustwave Holdings, Inc.","range":"AS40912","log":"ARIN"}],"events":[{"event_id":"e81885d5df2afb89","registry":"ARIN","report_date":"2018-05-18","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"asn","resource":"AS40912","start":40912,"end":40912,"classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"M86 Security","recipient_organization":"Trustwave Holdings, 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/40912/#e-e81885d5df2afb89","report_page":"https://rirtracker.com/arin/reports/2018-05-18/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/40912.json","observed":"Merger/acquisition: M86 Security (ARIN) to Trustwave Holdings, Inc. (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from M86 Security (ARIN) to Trustwave Holdings, Inc. (ARIN) on 2018-05-18 17:51 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 2018-05-18 17:51 UTC, M86 Security (ARIN) to Trustwave Holdings, Inc. (ARIN); resources moved: AS40912"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20180517.gz","retrieved_at":"2026-10-12T21:46:23+00:00","summary":"ARIN delegated statistics 2018-05-17 (produced 2018-05-17T05:00:22+00:00), before the report: assigned (dated 2008-05-19)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20180519.gz","retrieved_at":"2026-10-12T21:46:28+00:00","summary":"ARIN delegated statistics 2018-05-19 (produced 2018-05-19T05:00:24+00:00), after the report: assigned (dated 2008-05-19)"}]},{"event_id":"3a618a9451226ecf","registry":"ARIN","report_date":"2017-10-10","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"asn","resource":"AS40912","start":40912,"end":40912,"classification":"REMOVED_REASON_UNKNOWN","classification_label":"Removed (return, revocation or reclamation not publicly distinguishable)","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"Possible future reissue candidate after hold","inventory_effect_code":"HOLD_CANDIDATE","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:03:31+00:00","page":"https://rirtracker.com/asn/40912/#e-3a618a9451226ecf","report_page":"https://rirtracker.com/arin/reports/2017-10-10/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/40912.json","observed":"AS40912 assigned on 2017-10-10, reserved on 2017-10-11","hold":{"hold_rule_source_url":"https://www.arin.net/resources/guide/request/#reissuing-returned-revoked-and-reclaimed-resources","hold_rule_months":6,"estimated_hold_end":"2018-04-10","availability_statement":"Possible reissue candidate after this date; not confirmed available"},"explanation":"Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it assigned (dated 2008-05-19) on 2017-10-09 and reserved on 2017-10-11. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed ASNs for 6 calendar months before reissuing them, so the estimated hold end is 2018-04-10. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20171011.gz","retrieved_at":"2026-10-12T21:35:37+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: AS40912 assigned on 2017-10-10, reserved on 2017-10-11"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20171009.gz","retrieved_at":"2026-10-12T21:35:32+00:00","summary":"ARIN delegated statistics 2017-10-09 (produced 2017-10-09T05:10:38+00:00), before the report: assigned (dated 2008-05-19)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20171011.gz","retrieved_at":"2026-10-12T21:35:37+00:00","summary":"ARIN delegated statistics 2017-10-11 (produced 2017-10-11T05:11:30+00:00), after the report: reserved"}]}],"classification_history":{"e81885d5df2afb89":[{"raw_change_id":554712,"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 M86 Security (ARIN) to Trustwave Holdings, Inc. (ARIN) on 2018-05-18 17:51 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."}],"3a618a9451226ecf":[{"raw_change_id":341809,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T05:15:34+00:00","current":0,"public_explanation":"Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it assigned (dated 2008-05-19) on 2017-10-09 and reserved on 2017-10-11. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed ASNs for 6 calendar months before reissuing them, so the earliest estimated hold expiration is 2018-04-10. This does not confirm availability."},{"raw_change_id":341809,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:15:48+00:00","current":0,"public_explanation":"Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it assigned (dated 2008-05-19) on 2017-10-09 and reserved on 2017-10-11. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed ASNs for 6 calendar months before reissuing them, so the earliest estimated hold expiration is 2018-04-10. This does not confirm availability."},{"raw_change_id":341809,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:59:20+00:00","current":0,"public_explanation":"Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it assigned (dated 2008-05-19) on 2017-10-09 and reserved on 2017-10-11. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed ASNs for 6 calendar months before reissuing them, so the earliest estimated hold expiration is 2018-04-10. This does not confirm availability."},{"raw_change_id":341809,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:03:31+00:00","current":1,"public_explanation":"Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it assigned (dated 2008-05-19) on 2017-10-09 and reserved on 2017-10-11. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed ASNs for 6 calendar months before reissuing them, so the estimated hold end is 2018-04-10. This does not confirm availability."}]},"arin_statistics_now":{"status":"assigned (dated 2008-05-19)"}}