{"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":"AS399753","resource_type":"asn","page":"https://rirtracker.com/asn/399753/","statistics_now":{"registry":"ARIN","status":"assigned (dated 2024-08-23)"},"current_holder":{"rir":"ARIN","org":null,"how":"ARIN's latest statistics"},"rdap_snapshots":[],"transfers":[],"events":[{"event_id":"d4d85ccd8258c97a","registry":"ARIN","report_date":"2024-08-23","source":"arin_issued","raw_action":"ADD","raw_line":"Add AS399753","resource_type":"asn","resource":"AS399753","start":399753,"end":399753,"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":"2026-10-13T23:54:10+00:00","page":"https://rirtracker.com/asn/399753/#e-d4d85ccd8258c97a","report_page":"https://rirtracker.com/arin/reports/2024-08-23/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/399753.json","explanation":"No transfer record matches. ARIN's statistics show it available on 2024-08-22 and assigned (dated 2024-08-23) on 2024-08-24. The tracker saw this range released from hold on 2024-08-16 (AS399753), so it appears to have been issued again from ARIN's pool.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2024-August/005732.html","retrieved_at":"2026-10-12T18:42:42+00:00","summary":"ARIN-Issued report for 2024-08-23: \"Add AS399753\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20240822.gz","retrieved_at":"2026-10-12T23:45:21+00:00","summary":"ARIN delegated statistics 2024-08-22 (produced 2024-08-22T13:00:52+00:00), before the report: available"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20240824.gz","retrieved_at":"2026-10-12T23:45:36+00:00","summary":"ARIN delegated statistics 2024-08-24 (produced 2024-08-24T13:00:52+00:00), after the report: assigned (dated 2024-08-23)"}]},{"event_id":"799afa11c33edc89","registry":"ARIN","report_date":"2024-08-16","source":"arin_issued","raw_action":"REMOVE","raw_line":"Remove AS399753","resource_type":"asn","resource":"AS399753","start":399753,"end":399753,"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":"2026-10-13T23:54:09+00:00","page":"https://rirtracker.com/asn/399753/#e-799afa11c33edc89","report_page":"https://rirtracker.com/arin/reports/2024-08-16/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/399753.json","explanation":"ARIN's statistics show it reserved on 2024-08-15 and available on 2024-08-17. 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 2023-11-06, 284 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/2024-August/005725.html","retrieved_at":"2026-10-12T18:42:42+00:00","summary":"ARIN-Issued report for 2024-08-16: \"Remove AS399753\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20240815.gz","retrieved_at":"2026-10-12T23:45:03+00:00","summary":"ARIN delegated statistics 2024-08-15 (produced 2024-08-15T13:00:50+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20240817.gz","retrieved_at":"2026-10-12T23:45:08+00:00","summary":"ARIN delegated statistics 2024-08-17 (produced 2024-08-17T13:00:51+00:00), after the report: available"}]},{"event_id":"bbca1a318f5ca7bb","registry":"ARIN","report_date":"2023-11-06","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"asn","resource":"AS399753","start":399753,"end":399753,"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":"2026-10-14T00:11:17+00:00","page":"https://rirtracker.com/asn/399753/#e-bbca1a318f5ca7bb","report_page":"https://rirtracker.com/arin/reports/2023-11-06/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/399753.json","observed":"AS399753 assigned on 2023-11-06, reserved on 2023-11-07","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":"2024-05-06","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 2021-06-07) on 2023-11-05 and reserved on 2023-11-07. 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 2024-05-06. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2023/delegated-arin-extended-20231107.gz","retrieved_at":"2026-10-12T23:29:56+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: AS399753 assigned on 2023-11-06, reserved on 2023-11-07"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2023/delegated-arin-extended-20231105.gz","retrieved_at":"2026-10-12T23:29:51+00:00","summary":"ARIN delegated statistics 2023-11-05 (produced 2023-11-05T14:00:34+00:00), before the report: assigned (dated 2021-06-07)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2023/delegated-arin-extended-20231107.gz","retrieved_at":"2026-10-12T23:29:56+00:00","summary":"ARIN delegated statistics 2023-11-07 (produced 2023-11-07T14:00:33+00:00), after the report: reserved"}]},{"event_id":"8eb8bb49695ff902","registry":"ARIN","report_date":"2021-06-07","source":"arin_issued","raw_action":"ADD","raw_line":"Add AS399753","resource_type":"asn","resource":"AS399753","start":399753,"end":399753,"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":"2026-10-13T23:53:09+00:00","page":"https://rirtracker.com/asn/399753/#e-8eb8bb49695ff902","report_page":"https://rirtracker.com/arin/reports/2021-06-07/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/399753.json","explanation":"No transfer record matches. ARIN's statistics show it available on 2021-06-06 and assigned (dated 2021-06-07) on 2021-06-08. 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/2021-June/004560.html","retrieved_at":"2026-10-12T18:41:21+00:00","summary":"ARIN-Issued report for 2021-06-07: \"Add AS399753\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2021/delegated-arin-extended-20210606.gz","retrieved_at":"2026-10-12T22:43:55+00:00","summary":"ARIN delegated statistics 2021-06-06 (produced 2021-06-06T14:00:14+00:00), before the report: available"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2021/delegated-arin-extended-20210608.gz","retrieved_at":"2026-10-12T22:43:59+00:00","summary":"ARIN delegated statistics 2021-06-08 (produced 2021-06-08T14:00:13+00:00), after the report: assigned (dated 2021-06-07)"}]}],"classification_history":{"d4d85ccd8258c97a":[{"raw_change_id":188796,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:03:03+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2024-08-22 and assigned (dated 2024-08-23) on 2024-08-24. The tracker saw this range released from hold on 2024-08-16 (AS399753), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":188796,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:07:47+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2024-08-22 and assigned (dated 2024-08-23) on 2024-08-24. The tracker saw this range released from hold on 2024-08-16 (AS399753), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":188796,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:50:39+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2024-08-22 and assigned (dated 2024-08-23) on 2024-08-24. The tracker saw this range released from hold on 2024-08-16 (AS399753), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":188796,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:10+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2024-08-22 and assigned (dated 2024-08-23) on 2024-08-24. The tracker saw this range released from hold on 2024-08-16 (AS399753), so it appears to have been issued again from ARIN's pool."}],"799afa11c33edc89":[{"raw_change_id":188720,"classification_code":"HOLD_RELEASED","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:03:02+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2024-08-15 and available on 2024-08-17. 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 2023-11-06, 284 days earlier. That is ARIN's own label: whether and when it is reissued is not confirmed."},{"raw_change_id":188720,"classification_code":"HOLD_RELEASED","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:07:47+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2024-08-15 and available on 2024-08-17. 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 2023-11-06, 284 days earlier. That is ARIN's own label: whether and when it is reissued is not confirmed."},{"raw_change_id":188720,"classification_code":"HOLD_RELEASED","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:50:39+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2024-08-15 and available on 2024-08-17. 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 2023-11-06, 284 days earlier. That is ARIN's own label: whether and when it is reissued is not confirmed."},{"raw_change_id":188720,"classification_code":"HOLD_RELEASED","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:09+00:00","current":1,"public_explanation":"ARIN's statistics show it reserved on 2024-08-15 and available on 2024-08-17. 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 2023-11-06, 284 days earlier. That is ARIN's own label: whether and when it is reissued is not confirmed."}],"bbca1a318f5ca7bb":[{"raw_change_id":456659,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T06:04:13+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 assigned (dated 2021-06-07) on 2023-11-05 and reserved on 2023-11-07. 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 2024-05-06. This does not confirm availability."},{"raw_change_id":456659,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:22:12+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 2021-06-07) on 2023-11-05 and reserved on 2023-11-07. 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 2024-05-06. This does not confirm availability."},{"raw_change_id":456659,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T15:06:14+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 2021-06-07) on 2023-11-05 and reserved on 2023-11-07. 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 2024-05-06. This does not confirm availability."},{"raw_change_id":456659,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:11:17+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 2021-06-07) on 2023-11-05 and reserved on 2023-11-07. 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 2024-05-06. This does not confirm availability."}],"8eb8bb49695ff902":[{"raw_change_id":171599,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:52:38+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2021-06-06 and assigned (dated 2021-06-07) on 2021-06-08. 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":171599,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:07:02+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2021-06-06 and assigned (dated 2021-06-07) on 2021-06-08. 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":171599,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:49:49+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2021-06-06 and assigned (dated 2021-06-07) on 2021-06-08. 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":171599,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:53:09+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2021-06-06 and assigned (dated 2021-06-07) on 2021-06-08. 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 2024-08-23)"}}