{"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":"AS397253","resource_type":"asn","page":"https://rirtracker.com/asn/397253/","statistics_now":{"registry":"ARIN","status":"assigned (dated 2025-03-14)"},"current_holder":{"rir":"ARIN","org":null,"how":"ARIN's latest statistics"},"rdap_snapshots":[],"transfers":[],"events":[{"event_id":"cde7d6fbd826d2e9","registry":"ARIN","report_date":"2025-03-14","source":"arin_issued","raw_action":"ADD","raw_line":"Add AS397253","resource_type":"asn","resource":"AS397253","start":397253,"end":397253,"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":"2026-10-13T23:54:24+00:00","page":"https://rirtracker.com/asn/397253/#e-cde7d6fbd826d2e9","report_page":"https://rirtracker.com/arin/reports/2025-03-14/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/397253.json","explanation":"No transfer record matches. ARIN's statistics show it available on 2025-03-13 and assigned (dated 2025-03-14) on 2025-03-15. The tracker saw this range released from hold on 2025-02-24 (AS397253), so it appears to have been issued again from ARIN's pool.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2025-March/005935.html","retrieved_at":"2026-10-12T18:42:57+00:00","summary":"ARIN-Issued report for 2025-03-14: \"Add AS397253\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20250313.gz","retrieved_at":"2026-10-12T23:56:20+00:00","summary":"ARIN delegated statistics 2025-03-13 (produced 2025-03-13T13:01:07+00:00), before the report: available"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20250315.gz","retrieved_at":"2026-10-12T23:56:25+00:00","summary":"ARIN delegated statistics 2025-03-15 (produced 2025-03-15T13:01:07+00:00), after the report: assigned (dated 2025-03-14)"}]},{"event_id":"767fe1852c23eaf7","registry":"ARIN","report_date":"2025-02-24","source":"arin_issued","raw_action":"REMOVE","raw_line":"Remove AS397253","resource_type":"asn","resource":"AS397253","start":397253,"end":397253,"classification":"HOLD_RELEASED","classification_label":"Released from hold (ARIN lists it as 'available')","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"ARIN's statistics now list it as 'available'; reissue not confirmed","inventory_effect_code":"RELEASED","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:23+00:00","page":"https://rirtracker.com/asn/397253/#e-767fe1852c23eaf7","report_page":"https://rirtracker.com/arin/reports/2025-02-24/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/397253.json","explanation":"ARIN's statistics show it reserved on 2025-02-23 and available on 2025-02-25. ARIN took it out of its reserved (held) records; its statistics now give it the status 'available'. The tracker saw it removed from registration on 2024-06-10, 259 days earlier. That is ARIN's own label: whether and when it is reissued is not confirmed.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2025-February/005917.html","retrieved_at":"2026-10-12T18:42:54+00:00","summary":"ARIN-Issued report for 2025-02-24: \"Remove AS397253\""},{"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: reserved"},{"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: available"}]},{"event_id":"776ff53d11b7d45c","registry":"ARIN","report_date":"2024-06-10","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"asn","resource":"AS397253","start":397253,"end":397253,"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":"2026-10-14T00:12:03+00:00","page":"https://rirtracker.com/asn/397253/#e-776ff53d11b7d45c","report_page":"https://rirtracker.com/arin/reports/2024-06-10/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/397253.json","observed":"AS397253 assigned on 2024-06-10, reserved on 2024-06-11","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":"2024-12-10","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 2019-01-23) on 2024-06-09 and reserved on 2024-06-11. 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 2024-12-10. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20240611.gz","retrieved_at":"2026-10-12T23:41:26+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: AS397253 assigned on 2024-06-10, reserved on 2024-06-11"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20240609.gz","retrieved_at":"2026-10-12T23:41:21+00:00","summary":"ARIN delegated statistics 2024-06-09 (produced 2024-06-09T13:00:47+00:00), before the report: assigned (dated 2019-01-23)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20240611.gz","retrieved_at":"2026-10-12T23:41:26+00:00","summary":"ARIN delegated statistics 2024-06-11 (produced 2024-06-11T13:00:47+00:00), after the report: reserved"}]},{"event_id":"074cc668267ae2b9","registry":"ARIN","report_date":"2023-06-12","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"asn","resource":"AS397253","start":397253,"end":397253,"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":"2026-10-14T00:10:45+00:00","page":"https://rirtracker.com/asn/397253/#e-074cc668267ae2b9","report_page":"https://rirtracker.com/arin/reports/2023-06-12/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/397253.json","observed":"AS397253 assigned on 2023-06-12, reserved on 2023-06-13","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":"2023-12-12","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 2019-01-23) on 2023-06-11 and reserved on 2023-06-13. 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 2023-12-12. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2023/delegated-arin-extended-20230613.gz","retrieved_at":"2026-10-12T23:22:12+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: AS397253 assigned on 2023-06-12, reserved on 2023-06-13"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2023/delegated-arin-extended-20230611.gz","retrieved_at":"2026-10-12T23:22:07+00:00","summary":"ARIN delegated statistics 2023-06-11 (produced 2023-06-11T13:00:10+00:00), before the report: assigned (dated 2019-01-23)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2023/delegated-arin-extended-20230613.gz","retrieved_at":"2026-10-12T23:22:12+00:00","summary":"ARIN delegated statistics 2023-06-13 (produced 2023-06-13T13:00:10+00:00), after the report: reserved"}]},{"event_id":"d33b295589375473","registry":"ARIN","report_date":"2019-01-23","source":"arin_issued","raw_action":"ADD","raw_line":"Add AS397253","resource_type":"asn","resource":"AS397253","start":397253,"end":397253,"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":"2026-10-13T23:52:24+00:00","page":"https://rirtracker.com/asn/397253/#e-d33b295589375473","report_page":"https://rirtracker.com/arin/reports/2019-01-23/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/397253.json","explanation":"No transfer record matches. ARIN's statistics show it available on 2019-01-22 and assigned (dated 2019-01-23) on 2019-01-24. 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/2019-January/003696.html","retrieved_at":"2026-10-12T18:40:20+00:00","summary":"ARIN-Issued report for 2019-01-23: \"Add AS397253\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2019/delegated-arin-extended-20190122.gz","retrieved_at":"2026-10-12T21:59:10+00:00","summary":"ARIN delegated statistics 2019-01-22 (produced 2019-01-22T06:00:17+00:00), before the report: available"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2019/delegated-arin-extended-20190124.gz","retrieved_at":"2026-10-12T21:59:15+00:00","summary":"ARIN delegated statistics 2019-01-24 (produced 2019-01-24T06:00:15+00:00), after the report: assigned (dated 2019-01-23)"}]}],"classification_history":{"cde7d6fbd826d2e9":[{"raw_change_id":193127,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:06:06+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2025-03-13 and assigned (dated 2025-03-14) on 2025-03-15. The tracker saw this range released from hold on 2025-02-24 (AS397253), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":193127,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:07:58+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2025-03-13 and assigned (dated 2025-03-14) on 2025-03-15. The tracker saw this range released from hold on 2025-02-24 (AS397253), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":193127,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:50:52+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2025-03-13 and assigned (dated 2025-03-14) on 2025-03-15. The tracker saw this range released from hold on 2025-02-24 (AS397253), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":193127,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:24+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2025-03-13 and assigned (dated 2025-03-14) on 2025-03-15. The tracker saw this range released from hold on 2025-02-24 (AS397253), so it appears to have been issued again from ARIN's pool."}],"767fe1852c23eaf7":[{"raw_change_id":192602,"classification_code":"HOLD_RELEASED","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:05:27+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2025-02-23 and available on 2025-02-25. ARIN took it out of its reserved (held) records; its statistics now give it the status 'available'. The tracker saw it removed from registration on 2024-06-10, 259 days earlier. That is ARIN's own label: whether and when it is reissued is not confirmed."},{"raw_change_id":192602,"classification_code":"HOLD_RELEASED","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:07:57+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2025-02-23 and available on 2025-02-25. ARIN took it out of its reserved (held) records; its statistics now give it the status 'available'. The tracker saw it removed from registration on 2024-06-10, 259 days earlier. That is ARIN's own label: whether and when it is reissued is not confirmed."},{"raw_change_id":192602,"classification_code":"HOLD_RELEASED","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:50:51+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2025-02-23 and available on 2025-02-25. ARIN took it out of its reserved (held) records; its statistics now give it the status 'available'. The tracker saw it removed from registration on 2024-06-10, 259 days earlier. That is ARIN's own label: whether and when it is reissued is not confirmed."},{"raw_change_id":192602,"classification_code":"HOLD_RELEASED","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:23+00:00","current":1,"public_explanation":"ARIN's statistics show it reserved on 2025-02-23 and available on 2025-02-25. ARIN took it out of its reserved (held) records; its statistics now give it the status 'available'. The tracker saw it removed from registration on 2024-06-10, 259 days earlier. That is ARIN's own label: whether and when it is reissued is not confirmed."}],"776ff53d11b7d45c":[{"raw_change_id":466057,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T06:08:09+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 assigned (dated 2019-01-23) on 2024-06-09 and reserved on 2024-06-11. 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 2024-12-10. This does not confirm availability."},{"raw_change_id":466057,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:22:48+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 2019-01-23) on 2024-06-09 and reserved on 2024-06-11. 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 2024-12-10. This does not confirm availability."},{"raw_change_id":466057,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T15:06:53+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 2019-01-23) on 2024-06-09 and reserved on 2024-06-11. 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 2024-12-10. This does not confirm availability."},{"raw_change_id":466057,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:12:03+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 2019-01-23) on 2024-06-09 and reserved on 2024-06-11. 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 2024-12-10. This does not confirm availability."}],"074cc668267ae2b9":[{"raw_change_id":449239,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T06:00:49+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 2019-01-23) on 2023-06-11 and reserved on 2023-06-13. 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 2023-12-12. This does not confirm availability."},{"raw_change_id":449239,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:21:46+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 2019-01-23) on 2023-06-11 and reserved on 2023-06-13. 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 2023-12-12. This does not confirm availability."},{"raw_change_id":449239,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T15:05:47+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 2019-01-23) on 2023-06-11 and reserved on 2023-06-13. 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 2023-12-12. This does not confirm availability."},{"raw_change_id":449239,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:10:45+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 2019-01-23) on 2023-06-11 and reserved on 2023-06-13. 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 2023-12-12. This does not confirm availability."}],"d33b295589375473":[{"raw_change_id":158269,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:43:24+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2019-01-22 and assigned (dated 2019-01-23) on 2019-01-24. 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":158269,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:06:28+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2019-01-22 and assigned (dated 2019-01-23) on 2019-01-24. 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":158269,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:49:11+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2019-01-22 and assigned (dated 2019-01-23) on 2019-01-24. 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":158269,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:52:24+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2019-01-22 and assigned (dated 2019-01-23) on 2019-01-24. 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 2025-03-14)"}}