{"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":"AS920","resource_type":"asn","page":"https://rirtracker.com/asn/920/","statistics_now":{"registry":"ARIN","status":"reserved"},"current_holder":{"rir":"ARIN","org":null,"how":"ARIN's latest statistics"},"rdap_snapshots":[{"resource_type":"asn","start_key":"00000000000000000000000000000398","end_key":"00000000000000000000000000000398","captured_at":"2026-11-06T18:21:56+00:00","reason":"watch","authoritative_rir":"ARIN","rdap_url":"https://rdap.arin.net/registry/autnum/920","error":"not registered (RDAP 404)"},{"resource_type":"asn","start_key":"00000000000000000000000000000398","end_key":"00000000000000000000000000000398","captured_at":"2026-10-30T18:20:18+00:00","reason":"watch","authoritative_rir":"ARIN","rdap_url":"https://rdap.arin.net/registry/autnum/920","error":"not registered (RDAP 404)"},{"resource_type":"asn","start_key":"00000000000000000000000000000398","end_key":"00000000000000000000000000000398","captured_at":"2026-10-27T18:25:37+00:00","reason":"watch","authoritative_rir":"ARIN","rdap_url":"https://rdap.arin.net/registry/autnum/920","error":"not registered (RDAP 404)"},{"resource_type":"asn","start_key":"00000000000000000000000000000398","end_key":"00000000000000000000000000000398","captured_at":"2026-10-21T18:42:22+00:00","reason":"watch","authoritative_rir":"ARIN","rdap_url":"https://rdap.arin.net/registry/autnum/920","error":"not registered (RDAP 404)"},{"resource_type":"asn","start_key":"00000000000000000000000000000398","end_key":"00000000000000000000000000000398","captured_at":"2026-10-14T18:23:41+00:00","reason":"watch","authoritative_rir":"ARIN","rdap_url":"https://rdap.arin.net/registry/autnum/920","error":"not registered (RDAP 404)"},{"resource_type":"asn","start_key":"00000000000000000000000000000398","end_key":"00000000000000000000000000000398","captured_at":"2026-10-12T17:40:28+00:00","reason":"watch","authoritative_rir":"ARIN","rdap_url":"https://rdap.arin.net/registry/autnum/920","error":"not registered (RDAP 404)"}],"transfers":[],"events":[{"event_id":"9d0a516b5f779dbd","registry":"ARIN","report_date":"2025-11-17","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"asn","resource":"AS920","start":920,"end":920,"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":"2026-10-14T00:13:51+00:00","page":"https://rirtracker.com/asn/920/#e-9d0a516b5f779dbd","report_page":"https://rirtracker.com/arin/reports/2025-11-17/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/920.json","observed":"AS920 assigned on 2025-11-17, reserved on 2025-11-18","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":"2026-05-17","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 2022-06-13) on 2025-11-16 and reserved on 2025-11-18. 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 2026-05-17. 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/2025/delegated-arin-extended-20251118.gz","retrieved_at":"2026-10-13T00:10:29+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: AS920 assigned on 2025-11-17, reserved on 2025-11-18"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20251116.gz","retrieved_at":"2026-10-13T00:10:24+00:00","summary":"ARIN delegated statistics 2025-11-16 (produced 2025-11-16T14:00:48+00:00), before the report: assigned (dated 2022-06-13)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20251118.gz","retrieved_at":"2026-10-13T00:10:29+00:00","summary":"ARIN delegated statistics 2025-11-18 (produced 2025-11-18T14:00:48+00:00), after the report: reserved"}]},{"event_id":"d810f038ace1cf59","registry":"ARIN","report_date":"2022-06-13","source":"arin_issued","raw_action":"ADD","raw_line":"Add AS920","resource_type":"asn","resource":"AS920","start":920,"end":920,"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":"2026-10-13T23:53:24+00:00","page":"https://rirtracker.com/asn/920/#e-d810f038ace1cf59","report_page":"https://rirtracker.com/arin/reports/2022-06-13/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/920.json","explanation":"No transfer record matches. ARIN's statistics show it available on 2022-06-12 and assigned (dated 2022-06-13) on 2022-06-14. 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/2022-June/004931.html","retrieved_at":"2026-10-12T18:41:47+00:00","summary":"ARIN-Issued report for 2022-06-13: \"Add AS920\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2022/delegated-arin-extended-20220612.gz","retrieved_at":"2026-10-12T23:02:49+00:00","summary":"ARIN delegated statistics 2022-06-12 (produced 2022-06-12T13:00:08+00:00), before the report: available"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2022/delegated-arin-extended-20220614.gz","retrieved_at":"2026-10-12T23:02:54+00:00","summary":"ARIN delegated statistics 2022-06-14 (produced 2022-06-14T13:00:09+00:00), after the report: assigned (dated 2022-06-13)"}]}],"classification_history":{"9d0a516b5f779dbd":[{"raw_change_id":488706,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T06:19:41+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 2022-06-13) on 2025-11-16 and reserved on 2025-11-18. 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 2026-05-17. This does not confirm availability."},{"raw_change_id":488706,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:24:11+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 2022-06-13) on 2025-11-16 and reserved on 2025-11-18. 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 2026-05-17. This does not confirm availability."},{"raw_change_id":488706,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T15:08:22+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 2022-06-13) on 2025-11-16 and reserved on 2025-11-18. 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 2026-05-17. This does not confirm availability."},{"raw_change_id":488706,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:13:51+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 2022-06-13) on 2025-11-16 and reserved on 2025-11-18. 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 2026-05-17. 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."}],"d810f038ace1cf59":[{"raw_change_id":176780,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:56:09+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2022-06-12 and assigned (dated 2022-06-13) on 2022-06-14. The tracker saw this range released from hold on 2022-06-07 (AS886-AS1100), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":176780,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:07:14+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2022-06-12 and assigned (dated 2022-06-13) on 2022-06-14. The tracker saw this range released from hold on 2022-06-07 (AS886-AS1100), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":176780,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:50:02+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2022-06-12 and assigned (dated 2022-06-13) on 2022-06-14. The tracker saw this range released from hold on 2022-06-07 (AS886-AS1100), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":176780,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:53:24+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2022-06-12 and assigned (dated 2022-06-13) on 2022-06-14. 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":"reserved"}}