{"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":"AS397166","resource_type":"asn","page":"https://rirtracker.com/asn/397166/","statistics_now":{"registry":"ARIN","status":"assigned (dated 2018-11-26)"},"current_holder":{"rir":"ARIN","org":null,"how":"ARIN's latest statistics"},"rdap_snapshots":[],"transfers":[],"events":[{"event_id":"6b14c2e621f37dea","registry":"ARIN","report_date":"2024-01-08","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"asn","resource":"AS397166","start":397166,"end":397166,"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":"2026-10-14T00:11:28+00:00","page":"https://rirtracker.com/asn/397166/#e-6b14c2e621f37dea","report_page":"https://rirtracker.com/arin/reports/2024-01-08/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/397166.json","observed":"AS397166 assigned on 2024-01-08, reserved on 2024-01-09","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":"2024-07-08","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 2018-11-26) on 2024-01-07 and reserved on 2024-01-09. 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 2024-07-08. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20240109.gz","retrieved_at":"2026-10-12T23:33:12+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: AS397166 assigned on 2024-01-08, reserved on 2024-01-09"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20240107.gz","retrieved_at":"2026-10-12T23:33:07+00:00","summary":"ARIN delegated statistics 2024-01-07 (produced 2024-01-07T14:00:33+00:00), before the report: assigned (dated 2018-11-26)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20240109.gz","retrieved_at":"2026-10-12T23:33:12+00:00","summary":"ARIN delegated statistics 2024-01-09 (produced 2024-01-09T14:00:42+00:00), after the report: reserved"}]},{"event_id":"0f8c93a12262e5e1","registry":"ARIN","report_date":"2023-01-09","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"asn","resource":"AS397166","start":397166,"end":397166,"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":"2026-10-14T00:10:08+00:00","page":"https://rirtracker.com/asn/397166/#e-0f8c93a12262e5e1","report_page":"https://rirtracker.com/arin/reports/2023-01-09/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/397166.json","observed":"AS397166 assigned on 2023-01-09, reserved on 2023-01-10","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":"2023-07-09","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 2018-11-26) on 2023-01-08 and reserved on 2023-01-10. 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 2023-07-09. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2023/delegated-arin-extended-20230110.gz","retrieved_at":"2026-10-12T23:13:58+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: AS397166 assigned on 2023-01-09, reserved on 2023-01-10"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2023/delegated-arin-extended-20230108.gz","retrieved_at":"2026-10-12T23:13:53+00:00","summary":"ARIN delegated statistics 2023-01-08 (produced 2023-01-08T14:00:11+00:00), before the report: assigned (dated 2018-11-26)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2023/delegated-arin-extended-20230110.gz","retrieved_at":"2026-10-12T23:13:58+00:00","summary":"ARIN delegated statistics 2023-01-10 (produced 2023-01-10T14:00:11+00:00), after the report: reserved"}]},{"event_id":"94a55a86f4c0fa84","registry":"ARIN","report_date":"2018-11-26","source":"arin_issued","raw_action":"ADD","raw_line":"Add AS397166","resource_type":"asn","resource":"AS397166","start":397166,"end":397166,"classification":"APPARENT_NEW_ISSUANCE","classification_label":"Apparent new issuance","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":"2026-10-13T23:52:20+00:00","page":"https://rirtracker.com/asn/397166/#e-94a55a86f4c0fa84","report_page":"https://rirtracker.com/arin/reports/2018-11-26/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/397166.json","explanation":"No transfer record matches. ARIN's statistics show it available on 2018-11-25 and assigned (dated 2018-11-26) on 2018-11-27. It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2018-November/003638.html","retrieved_at":"2026-10-12T18:40:16+00:00","summary":"ARIN-Issued report for 2018-11-26: \"Add AS397166\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20181125.gz","retrieved_at":"2026-10-12T21:56:16+00:00","summary":"ARIN delegated statistics 2018-11-25 (produced 2018-11-25T06:00:11+00:00), before the report: available"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20181127.gz","retrieved_at":"2026-10-12T21:56:21+00:00","summary":"ARIN delegated statistics 2018-11-27 (produced 2018-11-27T06:00:11+00:00), after the report: assigned (dated 2018-11-26)"}]}],"classification_history":{"6b14c2e621f37dea":[{"raw_change_id":459107,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T06:05:15+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 2018-11-26) on 2024-01-07 and reserved on 2024-01-09. 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 2024-07-08. This does not confirm availability."},{"raw_change_id":459107,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:22:21+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 2018-11-26) on 2024-01-07 and reserved on 2024-01-09. 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 2024-07-08. This does not confirm availability."},{"raw_change_id":459107,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T15:06:24+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 2018-11-26) on 2024-01-07 and reserved on 2024-01-09. 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 2024-07-08. This does not confirm availability."},{"raw_change_id":459107,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:11:28+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 2018-11-26) on 2024-01-07 and reserved on 2024-01-09. 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 2024-07-08. This does not confirm availability."}],"0f8c93a12262e5e1":[{"raw_change_id":439323,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T05:55:59+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 2018-11-26) on 2023-01-08 and reserved on 2023-01-10. 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 2023-07-09. This does not confirm availability."},{"raw_change_id":439323,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:21:16+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 2018-11-26) on 2023-01-08 and reserved on 2023-01-10. 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 2023-07-09. This does not confirm availability."},{"raw_change_id":439323,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T15:05:14+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 2018-11-26) on 2023-01-08 and reserved on 2023-01-10. 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 2023-07-09. This does not confirm availability."},{"raw_change_id":439323,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:10:08+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 2018-11-26) on 2023-01-08 and reserved on 2023-01-10. 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 2023-07-09. This does not confirm availability."}],"94a55a86f4c0fa84":[{"raw_change_id":157314,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:42:55+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2018-11-25 and assigned (dated 2018-11-26) on 2018-11-27. It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN."},{"raw_change_id":157314,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:06:25+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2018-11-25 and assigned (dated 2018-11-26) on 2018-11-27. It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN."},{"raw_change_id":157314,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:49:07+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2018-11-25 and assigned (dated 2018-11-26) on 2018-11-27. It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN."},{"raw_change_id":157314,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:52:20+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2018-11-25 and assigned (dated 2018-11-26) on 2018-11-27. It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN."}]},"arin_statistics_now":{"status":"assigned (dated 2018-11-26)"}}