{"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":"AS47090","resource_type":"asn","page":"https://rirtracker.com/asn/47090/","statistics_now":{"registry":"ARIN","status":"assigned (dated 2017-10-31)"},"current_holder":{"rir":"ARIN","org":"Intermountain Health Care, Inc.","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":4366,"date":"2025-02-24T18:14:30Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"SCL Health Front Range Inc.","recipient_org":"Intermountain Health Care, Inc.","range":"AS47090","log":"ARIN"}],"events":[{"event_id":"49ba49e5f3698d96","registry":"ARIN","report_date":"2025-02-24","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"asn","resource":"AS47090","start":47090,"end":47090,"classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"SCL Health Front Range Inc.","recipient_organization":"Intermountain Health Care, Inc.","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:20+00:00","page":"https://rirtracker.com/asn/47090/#e-49ba49e5f3698d96","report_page":"https://rirtracker.com/arin/reports/2025-02-24/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/47090.json","observed":"Merger/acquisition: SCL Health Front Range Inc. (ARIN) to Intermountain Health Care, Inc. (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from SCL Health Front Range Inc. (ARIN) to Intermountain Health Care, Inc. (ARIN) on 2025-02-24 18:14 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 2025-02-24 18:14 UTC, SCL Health Front Range Inc. (ARIN) to Intermountain Health Care, Inc. (ARIN); resources moved: AS47090"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20250223.gz","retrieved_at":"2026-10-12T23:55:23+00:00","summary":"ARIN delegated statistics 2025-02-23 (produced 2025-02-23T14:01:06+00:00), before the report: assigned (dated 2017-10-31)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20250225.gz","retrieved_at":"2026-10-12T23:55:28+00:00","summary":"ARIN delegated statistics 2025-02-25 (produced 2025-02-25T14:01:06+00:00), after the report: assigned (dated 2017-10-31)"}]},{"event_id":"a1dc1a8a0b01ac93","registry":"ARIN","report_date":"2017-10-31","source":"arin_issued","raw_action":"ADD","raw_line":"Add AS47090","resource_type":"asn","resource":"AS47090","start":47090,"end":47090,"classification":"APPARENT_REISSUANCE","classification_label":"Apparent reissuance of previously removed resource","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"Likely issued from ARIN-controlled inventory","inventory_effect_code":"ISSUED","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:51:59+00:00","page":"https://rirtracker.com/asn/47090/#e-a1dc1a8a0b01ac93","report_page":"https://rirtracker.com/arin/reports/2017-10-31/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/47090.json","explanation":"No transfer record matches. ARIN's statistics show it reserved on 2017-10-30 and assigned (dated 2017-10-31) on 2017-11-01. The tracker saw this range removed from registration on 2013-11-06 (AS47090), so it appears to have been issued again from ARIN's pool.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2017-October/003247.html","retrieved_at":"2026-10-12T18:39:49+00:00","summary":"ARIN-Issued report for 2017-10-31: \"Add AS47090\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20171030.gz","retrieved_at":"2026-10-12T21:36:38+00:00","summary":"ARIN delegated statistics 2017-10-30 (produced 2017-10-30T05:10:31+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20171101.gz","retrieved_at":"2026-10-12T21:36:43+00:00","summary":"ARIN delegated statistics 2017-11-01 (produced 2017-11-01T05:11:14+00:00), after the report: assigned (dated 2017-10-31)"}]},{"event_id":"a77475319edf7b6a","registry":"ARIN","report_date":"2017-10-31","source":"arin_issued","raw_action":"REMOVE","raw_line":"Remove AS47090","resource_type":"asn","resource":"AS47090","start":47090,"end":47090,"classification":"POOL_RECORD_CHANGE","classification_label":"Change to ARIN's own pool record","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"Part of the issuance reported the same day","inventory_effect_code":"PAIRED","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:51:59+00:00","page":"https://rirtracker.com/asn/47090/#e-a77475319edf7b6a","report_page":"https://rirtracker.com/arin/reports/2017-10-31/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/47090.json","explanation":"ARIN's statistics show it reserved on 2017-10-30 and assigned (dated 2017-10-31) on 2017-11-01. ARIN removed its own pool record for this range as part of issuing it: the same report adds AS47090. The issuance is explained on that line.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2017-October/003247.html","retrieved_at":"2026-10-12T18:39:49+00:00","summary":"ARIN-Issued report for 2017-10-31: \"Remove AS47090\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20171030.gz","retrieved_at":"2026-10-12T21:36:38+00:00","summary":"ARIN delegated statistics 2017-10-30 (produced 2017-10-30T05:10:31+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20171101.gz","retrieved_at":"2026-10-12T21:36:43+00:00","summary":"ARIN delegated statistics 2017-11-01 (produced 2017-11-01T05:11:14+00:00), after the report: assigned (dated 2017-10-31)"}]},{"event_id":"6dbcc7398029c778","registry":"ARIN","report_date":"2013-11-06","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"asn","resource":"AS47090","start":47090,"end":47090,"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":"2026-10-13T23:58:37+00:00","page":"https://rirtracker.com/asn/47090/#e-6dbcc7398029c778","report_page":"https://rirtracker.com/arin/reports/2013-11-06/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/47090.json","observed":"AS47090 assigned on 2013-11-06, reserved on 2013-11-07","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":"2014-05-06","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 2009-07-08) on 2013-11-05 and reserved on 2013-11-07. 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 2014-05-06. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2013/delegated-arin-extended-20131107.gz","retrieved_at":"2026-10-12T20:07:14+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: AS47090 assigned on 2013-11-06, reserved on 2013-11-07"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2013/delegated-arin-extended-20131105.gz","retrieved_at":"2026-10-12T20:07:09+00:00","summary":"ARIN delegated statistics 2013-11-05 (produced 2013-11-05T06:06:31+00:00), before the report: assigned (dated 2009-07-08)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2013/delegated-arin-extended-20131107.gz","retrieved_at":"2026-10-12T20:07:14+00:00","summary":"ARIN delegated statistics 2013-11-07 (produced 2013-11-07T06:06:37+00:00), after the report: reserved"}]}],"classification_history":{"49ba49e5f3698d96":[{"raw_change_id":572920,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:20+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from SCL Health Front Range Inc. (ARIN) to Intermountain Health Care, Inc. (ARIN) on 2025-02-24 18:14 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."}],"a1dc1a8a0b01ac93":[{"raw_change_id":151920,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:39:29+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2017-10-30 and assigned (dated 2017-10-31) on 2017-11-01. The tracker saw this range removed from registration on 2013-11-06 (AS47090), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":151920,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:06:10+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2017-10-30 and assigned (dated 2017-10-31) on 2017-11-01. The tracker saw this range removed from registration on 2013-11-06 (AS47090), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":151920,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:48:50+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2017-10-30 and assigned (dated 2017-10-31) on 2017-11-01. The tracker saw this range removed from registration on 2013-11-06 (AS47090), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":151920,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:51:59+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2017-10-30 and assigned (dated 2017-10-31) on 2017-11-01. The tracker saw this range removed from registration on 2013-11-06 (AS47090), so it appears to have been issued again from ARIN's pool."}],"a77475319edf7b6a":[{"raw_change_id":151917,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:39:29+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2017-10-30 and assigned (dated 2017-10-31) on 2017-11-01. ARIN removed its own pool record for this range as part of issuing it: the same report adds AS47090. The issuance is explained on that line."},{"raw_change_id":151917,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:06:10+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2017-10-30 and assigned (dated 2017-10-31) on 2017-11-01. ARIN removed its own pool record for this range as part of issuing it: the same report adds AS47090. The issuance is explained on that line."},{"raw_change_id":151917,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:48:50+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2017-10-30 and assigned (dated 2017-10-31) on 2017-11-01. ARIN removed its own pool record for this range as part of issuing it: the same report adds AS47090. The issuance is explained on that line."},{"raw_change_id":151917,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:51:59+00:00","current":1,"public_explanation":"ARIN's statistics show it reserved on 2017-10-30 and assigned (dated 2017-10-31) on 2017-11-01. ARIN removed its own pool record for this range as part of issuing it: the same report adds AS47090. The issuance is explained on that line."}],"6dbcc7398029c778":[{"raw_change_id":266111,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:39:02+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 assigned (dated 2009-07-08) on 2013-11-05 and reserved on 2013-11-07. 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 2014-05-06. This does not confirm availability."},{"raw_change_id":266111,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:11:36+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 2009-07-08) on 2013-11-05 and reserved on 2013-11-07. 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 2014-05-06. This does not confirm availability."},{"raw_change_id":266111,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:54:50+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 2009-07-08) on 2013-11-05 and reserved on 2013-11-07. 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 2014-05-06. This does not confirm availability."},{"raw_change_id":266111,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:58:37+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 2009-07-08) on 2013-11-05 and reserved on 2013-11-07. 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 2014-05-06. This does not confirm availability."}]},"arin_statistics_now":{"status":"assigned (dated 2017-10-31)"}}