{"classifier_version":"1.1.0","generated":"2026-10-10T17:51:29+00:00","documentation":"https://rirtracker.com/api/","disclaimer":"This site independently analyzes publicly available Internet number-resource records. It is not affiliated with or endorsed by the American Registry for Internet Numbers (ARIN), the RIPE Network Coordination Centre (RIPE NCC), the Number Resource Organization (NRO), or any 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":"AS20522","resource_type":"asn","page":"https://rirtracker.com/asn/20522/","statistics_now":{"registry":"RIPE NCC","file_date":"2026-10-09","status":"available"},"current_holder":{"rir":null,"org":null,"how":null},"rdap_snapshots":[],"transfers":[],"events":[{"event_id":"4886e14214888308","registry":"RIPE NCC","report_date":"2026-09-22","source":"statistics","raw_action":"RELEASED","raw_line":null,"resource_type":"asn","resource":"AS20522","start":20522,"end":20522,"classification":"HOLD_RELEASED","classification_label":"Released from hold (RIPE NCC lists it as 'available')","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"RIPE NCC's statistics now list it as 'available'; reissue not confirmed","inventory_effect_code":"RELEASED","provisional":false,"classifier_version":"1.1.0","classified_at":"2026-10-10T17:51:27+00:00","page":"https://rirtracker.com/asn/20522/#e-4886e14214888308","report_page":"https://rirtracker.com/ripe/reports/2026-09-22/","evidence_url":"https://rirtracker.com/api/v1/events/4886e14214888308.json","observed":"AS20522 reserved on 2026-09-21, available on 2026-09-22","explanation":"RIPE NCC's statistics show it reserved on 2026-09-21 and available on 2026-09-22. RIPE NCC moved it from its reserved (held) records to the status it calls 'available'. The tracker saw it removed from registration on 2026-03-26, 180 days earlier. That is RIPE NCC's own label: whether and when it is reissued is not confirmed.","evidence":[{"type":"statistics_diff","url":"https://ftp.ripe.net/pub/stats/ripencc/2026/delegated-ripencc-extended-20260922.bz2","retrieved_at":"2026-10-10T17:38:30+00:00","summary":"Found by comparing RIPE NCC's daily statistics: AS20522 reserved on 2026-09-21, available on 2026-09-22"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2026/delegated-ripencc-extended-20260921.bz2","retrieved_at":"2026-10-10T17:38:27+00:00","summary":"RIPE NCC delegated statistics 2026-09-21 (produced 2026-09-21T21:59:59+00:00), before the change: reserved"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2026/delegated-ripencc-extended-20260922.bz2","retrieved_at":"2026-10-10T17:38:30+00:00","summary":"RIPE NCC delegated statistics 2026-09-22 (produced 2026-09-22T21:59:59+00:00), after the change: available"}]},{"event_id":"ce42aaa06f81a63c","registry":"RIPE NCC","report_date":"2026-03-26","source":"statistics","raw_action":"REMOVED","raw_line":null,"resource_type":"asn","resource":"AS20522","start":20522,"end":20522,"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":"1.1.0","classified_at":"2026-10-10T17:51:08+00:00","page":"https://rirtracker.com/asn/20522/#e-ce42aaa06f81a63c","report_page":"https://rirtracker.com/ripe/reports/2026-03-26/","evidence_url":"https://rirtracker.com/api/v1/events/ce42aaa06f81a63c.json","observed":"AS20522 allocated on 2026-03-25, reserved on 2026-03-26","explanation":"Removed from active registration. The tracker found it by comparing RIPE NCC's daily statistics. RIPE NCC's statistics show it allocated (dated 2001-03-22) on 2026-03-25 and reserved on 2026-03-26. Public sources do not distinguish a voluntary return, revocation, or reclamation. RIPE NCC publishes no fixed period for which it holds returned ASNs before reissuing them, so the tracker gives no estimate. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.ripe.net/pub/stats/ripencc/2026/delegated-ripencc-extended-20260326.bz2","retrieved_at":"2026-10-10T17:29:04+00:00","summary":"Found by comparing RIPE NCC's daily statistics: AS20522 allocated on 2026-03-25, reserved on 2026-03-26"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2026/delegated-ripencc-extended-20260325.bz2","retrieved_at":"2026-10-10T17:29:01+00:00","summary":"RIPE NCC delegated statistics 2026-03-25 (produced 2026-03-25T22:59:59+00:00), before the change: allocated (dated 2001-03-22)"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2026/delegated-ripencc-extended-20260326.bz2","retrieved_at":"2026-10-10T17:29:04+00:00","summary":"RIPE NCC delegated statistics 2026-03-26 (produced 2026-03-26T22:59:59+00:00), after the change: reserved"}]}],"classification_history":{"4886e14214888308":[{"raw_change_id":21531,"classification_code":"HOLD_RELEASED","confidence":"STRONG_INFERENCE","classifier_version":"1.1.0","classified_at":"2026-10-10T17:51:27+00:00","current":1,"public_explanation":"RIPE NCC's statistics show it reserved on 2026-09-21 and available on 2026-09-22. RIPE NCC moved it from its reserved (held) records to the status it calls 'available'. The tracker saw it removed from registration on 2026-03-26, 180 days earlier. That is RIPE NCC's own label: whether and when it is reissued is not confirmed."}],"ce42aaa06f81a63c":[{"raw_change_id":16261,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.1.0","classified_at":"2026-10-10T17:51:08+00:00","current":1,"public_explanation":"Removed from active registration. The tracker found it by comparing RIPE NCC's daily statistics. RIPE NCC's statistics show it allocated (dated 2001-03-22) on 2026-03-25 and reserved on 2026-03-26. Public sources do not distinguish a voluntary return, revocation, or reclamation. RIPE NCC publishes no fixed period for which it holds returned ASNs before reissuing them, so the tracker gives no estimate. This does not confirm availability."}]},"arin_statistics_now":{"file_date":"2026-10-10","status":"not listed"}}