{"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":"AS12128","resource_type":"asn","page":"https://rirtracker.com/asn/12128/","statistics_now":{"registry":"ARIN","status":"assigned (dated 2014-05-02)"},"current_holder":{"rir":"ARIN","org":"Refinitiv US LLC","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":2175,"date":"2020-08-11T12:18:45Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Thomson Reuters U.S. LLC","recipient_org":"Refinitiv US LLC","range":"AS12128","log":"ARIN"}],"events":[{"event_id":"bc862a7f22f6a995","registry":"ARIN","report_date":"2020-08-11","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"asn","resource":"AS12128","start":12128,"end":12128,"classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Thomson Reuters U.S. LLC","recipient_organization":"Refinitiv US LLC","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:50+00:00","page":"https://rirtracker.com/asn/12128/#e-bc862a7f22f6a995","report_page":"https://rirtracker.com/arin/reports/2020-08-11/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/12128.json","observed":"Merger/acquisition: Thomson Reuters U.S. LLC (ARIN) to Refinitiv US LLC (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Thomson Reuters U.S. LLC (ARIN) to Refinitiv US LLC (ARIN) on 2020-08-11 12:18 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 2020-08-11 12:18 UTC, Thomson Reuters U.S. LLC (ARIN) to Refinitiv US LLC (ARIN); resources moved: AS12128"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2020/delegated-arin-extended-20200810.gz","retrieved_at":"2026-10-12T22:28:27+00:00","summary":"ARIN delegated statistics 2020-08-10 (produced 2020-08-10T14:00:13+00:00), before the report: assigned (dated 2014-05-02)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2020/delegated-arin-extended-20200812.gz","retrieved_at":"2026-10-12T22:28:32+00:00","summary":"ARIN delegated statistics 2020-08-12 (produced 2020-08-12T14:00:12+00:00), after the report: assigned (dated 2014-05-02)"}]},{"event_id":"257d9dd3c29ba3ae","registry":"ARIN","report_date":"2013-02-21","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"asn","resource":"AS12128","start":12128,"end":12128,"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":"2026-10-13T23:57:58+00:00","page":"https://rirtracker.com/asn/12128/#e-257d9dd3c29ba3ae","report_page":"https://rirtracker.com/arin/reports/2013-02-21/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/12128.json","observed":"AS12128 allocated on 2013-02-21, not listed on 2013-02-22","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":"2013-08-21","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 1999-03-30) on 2013-02-20 and not issued on 2013-02-22. (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 2013-08-21. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2013/delegated-arin-20130222.gz","retrieved_at":"2026-10-12T19:55:07+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: AS12128 allocated on 2013-02-21, not listed on 2013-02-22"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2013/delegated-arin-20130220.gz","retrieved_at":"2026-10-12T19:55:00+00:00","summary":"ARIN delegated statistics 2013-02-20, before the report: allocated (dated 1999-03-30)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2013/delegated-arin-20130222.gz","retrieved_at":"2026-10-12T19:55:07+00:00","summary":"ARIN delegated statistics 2013-02-22, after the report: not issued"}]}],"classification_history":{"bc862a7f22f6a995":[{"raw_change_id":560809,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:50+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Thomson Reuters U.S. LLC (ARIN) to Refinitiv US LLC (ARIN) on 2020-08-11 12:18 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."}],"257d9dd3c29ba3ae":[{"raw_change_id":255389,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:33:25+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 1999-03-30) on 2013-02-20 and not issued on 2013-02-22. (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 2013-08-21. This does not confirm availability."},{"raw_change_id":255389,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:11:02+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 1999-03-30) on 2013-02-20 and not issued on 2013-02-22. (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 2013-08-21. This does not confirm availability."},{"raw_change_id":255389,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:54:13+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 1999-03-30) on 2013-02-20 and not issued on 2013-02-22. (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 2013-08-21. This does not confirm availability."},{"raw_change_id":255389,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:57:58+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 1999-03-30) on 2013-02-20 and not issued on 2013-02-22. (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 2013-08-21. This does not confirm availability."}]},"arin_statistics_now":{"status":"assigned (dated 2014-05-02)"}}