{"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":"AS23145","resource_type":"asn","page":"https://rirtracker.com/asn/23145/","statistics_now":{"registry":"ARIN","status":"assigned (dated 2011-02-01)"},"current_holder":{"rir":"ARIN","org":"IBM","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":976,"date":"2018-04-18T18:31:28Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Blue Box Group, Inc.","recipient_org":"IBM","range":"AS23145","log":"ARIN"}],"events":[{"event_id":"807a29739839dbee","registry":"ARIN","report_date":"2018-04-18","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"asn","resource":"AS23145","start":23145,"end":23145,"classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Blue Box Group, Inc.","recipient_organization":"IBM","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/23145/#e-807a29739839dbee","report_page":"https://rirtracker.com/arin/reports/2018-04-18/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/23145.json","observed":"Merger/acquisition: Blue Box Group, Inc. (ARIN) to IBM (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Blue Box Group, Inc. (ARIN) to IBM (ARIN) on 2018-04-18 18:31 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 2018-04-18 18:31 UTC, Blue Box Group, Inc. (ARIN) to IBM (ARIN); resources moved: AS23145"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20180417.gz","retrieved_at":"2026-10-12T21:44:53+00:00","summary":"ARIN delegated statistics 2018-04-17 (produced 2018-04-17T05:10:48+00:00), before the report: assigned (dated 2011-02-01)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20180419.gz","retrieved_at":"2026-10-12T21:44:58+00:00","summary":"ARIN delegated statistics 2018-04-19 (produced 2018-04-19T05:09:35+00:00), after the report: assigned (dated 2011-02-01)"}]},{"event_id":"6ac0cd8ba3d04260","registry":"ARIN","report_date":"2010-06-04","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"asn","resource":"AS23145","start":23145,"end":23145,"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":"2026-10-13T23:55:49+00:00","page":"https://rirtracker.com/asn/23145/#e-6ac0cd8ba3d04260","report_page":"https://rirtracker.com/arin/reports/2010-06-04/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/23145.json","observed":"AS23145 allocated on 2010-06-04, not listed on 2010-06-05","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":"2010-12-04","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 allocated (dated 2007-10-05) on 2010-06-03 and not issued on 2010-06-05. (Until 2013-03-05, ARIN's statistics list only what's issued.) 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 2010-12-04. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2010/delegated-arin-20100605.gz","retrieved_at":"2026-10-12T19:06:06+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: AS23145 allocated on 2010-06-04, not listed on 2010-06-05"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2010/delegated-arin-20100603.gz","retrieved_at":"2026-10-12T19:05:58+00:00","summary":"ARIN delegated statistics 2010-06-03, before the report: allocated (dated 2007-10-05)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2010/delegated-arin-20100605.gz","retrieved_at":"2026-10-12T19:06:06+00:00","summary":"ARIN delegated statistics 2010-06-05, after the report: not issued"}]}],"classification_history":{"807a29739839dbee":[{"raw_change_id":554468,"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 Blue Box Group, Inc. (ARIN) to IBM (ARIN) on 2018-04-18 18:31 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."}],"6ac0cd8ba3d04260":[{"raw_change_id":218095,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:15:51+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 allocated (dated 2007-10-05) on 2010-06-03 and not issued on 2010-06-05. (Until 2013-03-05, ARIN's statistics list only what's issued.) 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 2010-12-04. This does not confirm availability."},{"raw_change_id":218095,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:09:09+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 allocated (dated 2007-10-05) on 2010-06-03 and not issued on 2010-06-05. (Until 2013-03-05, ARIN's statistics list only what's issued.) 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 2010-12-04. This does not confirm availability."},{"raw_change_id":218095,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:52:10+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 allocated (dated 2007-10-05) on 2010-06-03 and not issued on 2010-06-05. (Until 2013-03-05, ARIN's statistics list only what's issued.) 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 2010-12-04. This does not confirm availability."},{"raw_change_id":218095,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:55:49+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 allocated (dated 2007-10-05) on 2010-06-03 and not issued on 2010-06-05. (Until 2013-03-05, ARIN's statistics list only what's issued.) 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 2010-12-04. This does not confirm availability."}]},"arin_statistics_now":{"status":"assigned (dated 2011-02-01)"}}