{"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":"AS21763","resource_type":"asn","page":"https://rirtracker.com/asn/21763/","statistics_now":{"registry":"ARIN","status":"assigned (dated 2025-01-28)"},"current_holder":{"rir":"ARIN","org":null,"how":"ARIN's latest statistics"},"rdap_snapshots":[],"transfers":[],"events":[{"event_id":"b72e2075039c5314","registry":"ARIN","report_date":"2025-01-28","source":"arin_issued","raw_action":"ADD","raw_line":"Add AS21763","resource_type":"asn","resource":"AS21763","start":21763,"end":21763,"classification":"RESTORED","classification_label":"Restored to the same holder","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:21+00:00","page":"https://rirtracker.com/asn/21763/#e-b72e2075039c5314","report_page":"https://rirtracker.com/arin/reports/2025-01-28/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/21763.json","explanation":"No transfer record matches. ARIN's statistics show it reserved on 2025-01-27 and assigned (dated 2025-01-28) on 2025-01-29. The tracker saw it removed from registration on 2024-10-07 (113 days earlier), and it is back with the same holder record it had before, so it went back to its previous holder rather than to a new one: most likely a suspension lifted, a reinstatement or a correction.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2025-January/005890.html","retrieved_at":"2026-10-12T18:42:52+00:00","summary":"ARIN-Issued report for 2025-01-28: \"Add AS21763\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20250127.gz","retrieved_at":"2026-10-12T23:53:52+00:00","summary":"ARIN delegated statistics 2025-01-27 (produced 2025-01-27T14:01:06+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20250129.gz","retrieved_at":"2026-10-12T23:53:57+00:00","summary":"ARIN delegated statistics 2025-01-29 (produced 2025-01-29T14:01:06+00:00), after the report: assigned (dated 2025-01-28)"}]},{"event_id":"9cbbeea10ee664bc","registry":"ARIN","report_date":"2025-01-28","source":"arin_issued","raw_action":"REMOVE","raw_line":"Remove AS21763","resource_type":"asn","resource":"AS21763","start":21763,"end":21763,"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":"2026-10-13T23:54:21+00:00","page":"https://rirtracker.com/asn/21763/#e-9cbbeea10ee664bc","report_page":"https://rirtracker.com/arin/reports/2025-01-28/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/21763.json","explanation":"ARIN's statistics show it reserved on 2025-01-27 and assigned (dated 2025-01-28) on 2025-01-29. ARIN removed its own pool record for this range as part of issuing it: the same report adds AS21763. The issuance is explained on that line.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2025-January/005890.html","retrieved_at":"2026-10-12T18:42:52+00:00","summary":"ARIN-Issued report for 2025-01-28: \"Remove AS21763\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20250127.gz","retrieved_at":"2026-10-12T23:53:52+00:00","summary":"ARIN delegated statistics 2025-01-27 (produced 2025-01-27T14:01:06+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20250129.gz","retrieved_at":"2026-10-12T23:53:57+00:00","summary":"ARIN delegated statistics 2025-01-29 (produced 2025-01-29T14:01:06+00:00), after the report: assigned (dated 2025-01-28)"}]},{"event_id":"9a0fc862bc45b89d","registry":"ARIN","report_date":"2024-10-07","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"asn","resource":"AS21763","start":21763,"end":21763,"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":"2026-10-14T00:12:29+00:00","page":"https://rirtracker.com/asn/21763/#e-9a0fc862bc45b89d","report_page":"https://rirtracker.com/arin/reports/2024-10-07/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/21763.json","observed":"AS21763 assigned on 2024-10-07, reserved on 2024-10-08","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":"2025-04-07","availability_statement":"Possible reissue candidate after this date; not confirmed available","released_sooner_since":"2024-07-01"},"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 2013-05-28) on 2024-10-06 and reserved on 2024-10-08. 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 2025-04-07. This does not confirm availability. Since mid-2024, ARIN has released many ASNs within two months, before the 6 calendar months were up, so the release can come sooner.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20241008.gz","retrieved_at":"2026-10-12T23:47:56+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: AS21763 assigned on 2024-10-07, reserved on 2024-10-08"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20241006.gz","retrieved_at":"2026-10-12T23:47:52+00:00","summary":"ARIN delegated statistics 2024-10-06 (produced 2024-10-06T13:00:52+00:00), before the report: assigned (dated 2013-05-28)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20241008.gz","retrieved_at":"2026-10-12T23:47:56+00:00","summary":"ARIN delegated statistics 2024-10-08 (produced 2024-10-08T13:00:52+00:00), after the report: reserved"}]},{"event_id":"13f1f94415625772","registry":"ARIN","report_date":"2013-02-26","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"asn","resource":"AS21763","start":21763,"end":21763,"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":"2026-10-13T23:57:59+00:00","page":"https://rirtracker.com/asn/21763/#e-13f1f94415625772","report_page":"https://rirtracker.com/arin/reports/2013-02-26/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/21763.json","observed":"AS21763 allocated on 2013-02-26, not listed on 2013-02-27","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":"2013-08-26","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 2001-06-18) on 2013-02-25 and not issued on 2013-02-27. (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 2013-08-26. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2013/delegated-arin-20130227.gz","retrieved_at":"2026-10-12T19:55:18+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: AS21763 allocated on 2013-02-26, not listed on 2013-02-27"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2013/delegated-arin-20130225.gz","retrieved_at":"2026-10-12T19:55:14+00:00","summary":"ARIN delegated statistics 2013-02-25, before the report: allocated (dated 2001-06-18)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2013/delegated-arin-20130227.gz","retrieved_at":"2026-10-12T19:55:18+00:00","summary":"ARIN delegated statistics 2013-02-27, after the report: not issued"}]}],"classification_history":{"b72e2075039c5314":[{"raw_change_id":192047,"classification_code":"RESTORED","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:05:06+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2025-01-27 and assigned (dated 2025-01-28) on 2025-01-29. The tracker saw it removed from registration on 2024-10-07 (113 days earlier), and it is back with the same holder record it had before, so it went back to its previous holder rather than to a new one: most likely a suspension lifted, a reinstatement or a correction."},{"raw_change_id":192047,"classification_code":"RESTORED","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:07:56+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2025-01-27 and assigned (dated 2025-01-28) on 2025-01-29. The tracker saw it removed from registration on 2024-10-07 (113 days earlier), and it is back with the same holder record it had before, so it went back to its previous holder rather than to a new one: most likely a suspension lifted, a reinstatement or a correction."},{"raw_change_id":192047,"classification_code":"RESTORED","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:50:49+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2025-01-27 and assigned (dated 2025-01-28) on 2025-01-29. The tracker saw it removed from registration on 2024-10-07 (113 days earlier), and it is back with the same holder record it had before, so it went back to its previous holder rather than to a new one: most likely a suspension lifted, a reinstatement or a correction."},{"raw_change_id":192047,"classification_code":"RESTORED","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:21+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2025-01-27 and assigned (dated 2025-01-28) on 2025-01-29. The tracker saw it removed from registration on 2024-10-07 (113 days earlier), and it is back with the same holder record it had before, so it went back to its previous holder rather than to a new one: most likely a suspension lifted, a reinstatement or a correction."}],"9cbbeea10ee664bc":[{"raw_change_id":192040,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:05:06+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2025-01-27 and assigned (dated 2025-01-28) on 2025-01-29. ARIN removed its own pool record for this range as part of issuing it: the same report adds AS21763. The issuance is explained on that line."},{"raw_change_id":192040,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:07:56+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2025-01-27 and assigned (dated 2025-01-28) on 2025-01-29. ARIN removed its own pool record for this range as part of issuing it: the same report adds AS21763. The issuance is explained on that line."},{"raw_change_id":192040,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:50:49+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2025-01-27 and assigned (dated 2025-01-28) on 2025-01-29. ARIN removed its own pool record for this range as part of issuing it: the same report adds AS21763. The issuance is explained on that line."},{"raw_change_id":192040,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:21+00:00","current":1,"public_explanation":"ARIN's statistics show it reserved on 2025-01-27 and assigned (dated 2025-01-28) on 2025-01-29. ARIN removed its own pool record for this range as part of issuing it: the same report adds AS21763. The issuance is explained on that line."}],"9a0fc862bc45b89d":[{"raw_change_id":470857,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T06:10:01+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 2013-05-28) on 2024-10-06 and reserved on 2024-10-08. 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 2025-04-07. This does not confirm availability."},{"raw_change_id":470857,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:23:08+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 2013-05-28) on 2024-10-06 and reserved on 2024-10-08. 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 2025-04-07. This does not confirm availability."},{"raw_change_id":470857,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T15:07:14+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 2013-05-28) on 2024-10-06 and reserved on 2024-10-08. 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 2025-04-07. This does not confirm availability."},{"raw_change_id":470857,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:12:29+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 2013-05-28) on 2024-10-06 and reserved on 2024-10-08. 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 2025-04-07. This does not confirm availability. Since mid-2024, ARIN has released many ASNs within two months, before the 6 calendar months were up, so the release can come sooner."}],"13f1f94415625772":[{"raw_change_id":255494,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:33:26+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 2001-06-18) on 2013-02-25 and not issued on 2013-02-27. (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 2013-08-26. This does not confirm availability."},{"raw_change_id":255494,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:11:03+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 2001-06-18) on 2013-02-25 and not issued on 2013-02-27. (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 2013-08-26. This does not confirm availability."},{"raw_change_id":255494,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:54:14+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 allocated (dated 2001-06-18) on 2013-02-25 and not issued on 2013-02-27. (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 2013-08-26. This does not confirm availability."},{"raw_change_id":255494,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:57:59+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 2001-06-18) on 2013-02-25 and not issued on 2013-02-27. (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 2013-08-26. This does not confirm availability."}]},"arin_statistics_now":{"status":"assigned (dated 2025-01-28)"}}