{"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":"AS37537","resource_type":"asn","page":"https://rirtracker.com/asn/37537/","statistics_now":{"registry":"AFRINIC","status":"reserved"},"current_holder":{"rir":"AFRINIC","org":null,"how":"AFRINIC's latest statistics"},"rdap_snapshots":[],"transfers":[],"events":[{"event_id":"48ccb0fb817a2720","registry":"AFRINIC","report_date":"2024-02-27","source":"statistics","raw_action":"REMOVED","raw_line":null,"resource_type":"asn","resource":"AS37537","start":37537,"end":37537,"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":"2026-10-14T00:17:24+00:00","page":"https://rirtracker.com/asn/37537/#e-48ccb0fb817a2720","report_page":"https://rirtracker.com/afrinic/reports/2024-02-27/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/37537.json","observed":"AS37537 allocated on 2024-02-27, reserved on 2024-02-28","explanation":"Removed from active registration. The tracker found it by comparing AFRINIC's daily statistics. AFRINIC's statistics show it allocated (dated 2012-12-19) on 2024-02-27 and reserved on 2024-02-28. Public sources do not distinguish a voluntary return, revocation, or reclamation. AFRINIC 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.afrinic.net/pub/stats/afrinic/2024/delegated-afrinic-extended-20240228","retrieved_at":"2026-10-13T01:13:37+00:00","summary":"Found by comparing AFRINIC's daily statistics: AS37537 allocated on 2024-02-27, reserved on 2024-02-28"},{"type":"delegated_before","url":"https://ftp.afrinic.net/pub/stats/afrinic/2024/delegated-afrinic-extended-20240227","retrieved_at":"2026-10-13T01:13:32+00:00","summary":"AFRINIC delegated statistics 2024-02-27, before the change: allocated (dated 2012-12-19)"},{"type":"delegated_after","url":"https://ftp.afrinic.net/pub/stats/afrinic/2024/delegated-afrinic-extended-20240228","retrieved_at":"2026-10-13T01:13:37+00:00","summary":"AFRINIC delegated statistics 2024-02-28, after the change: reserved"}]},{"event_id":"4374c58747c608d7","registry":"AFRINIC","report_date":"2012-12-19","source":"statistics","raw_action":"ADDED","raw_line":null,"resource_type":"asn","resource":"AS37537","start":37537,"end":37537,"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 AFRINIC-controlled inventory","inventory_effect_code":"ISSUED","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:44+00:00","page":"https://rirtracker.com/asn/37537/#e-4374c58747c608d7","report_page":"https://rirtracker.com/afrinic/reports/2012-12-19/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/37537.json","observed":"AS37537 available on 2012-12-19, allocated on 2012-12-20","explanation":"No transfer record matches. AFRINIC's statistics show it available on 2012-12-19 and allocated (dated 2012-12-19) on 2012-12-20. It moved from AFRINIC's unissued pool to an active registration dated around that day, so it appears to be newly issued by AFRINIC.","evidence":[{"type":"statistics_diff","url":"https://ftp.afrinic.net/pub/stats/afrinic/2012/delegated-afrinic-extended-20121220","retrieved_at":"2026-10-12T18:43:06+00:00","summary":"Found by comparing AFRINIC's daily statistics: AS37537 available on 2012-12-19, allocated on 2012-12-20"},{"type":"delegated_before","url":"https://ftp.afrinic.net/pub/stats/afrinic/2012/delegated-afrinic-extended-20121219","retrieved_at":"2026-10-12T18:43:01+00:00","summary":"AFRINIC delegated statistics 2012-12-19, before the change: available"},{"type":"delegated_after","url":"https://ftp.afrinic.net/pub/stats/afrinic/2012/delegated-afrinic-extended-20121220","retrieved_at":"2026-10-12T18:43:06+00:00","summary":"AFRINIC delegated statistics 2012-12-20, after the change: allocated (dated 2012-12-19)"}]}],"classification_history":{"48ccb0fb817a2720":[{"raw_change_id":532360,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T06:40:23+00:00","current":0,"public_explanation":"Removed from active registration. The tracker found it by comparing AFRINIC's daily statistics. AFRINIC's statistics show it allocated (dated 2012-12-19) on 2024-02-27 and reserved on 2024-02-28. Public sources do not distinguish a voluntary return, revocation, or reclamation. AFRINIC publishes no fixed period for which it holds returned ASNs before reissuing them, so the tracker gives no estimate. This does not confirm availability."},{"raw_change_id":532360,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:27:04+00:00","current":0,"public_explanation":"Removed from active registration. The tracker found it by comparing AFRINIC's daily statistics. AFRINIC's statistics show it allocated (dated 2012-12-19) on 2024-02-27 and reserved on 2024-02-28. Public sources do not distinguish a voluntary return, revocation, or reclamation. AFRINIC publishes no fixed period for which it holds returned ASNs before reissuing them, so the tracker gives no estimate. This does not confirm availability."},{"raw_change_id":532360,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T15:11:27+00:00","current":0,"public_explanation":"Removed from active registration. The tracker found it by comparing AFRINIC's daily statistics. AFRINIC's statistics show it allocated (dated 2012-12-19) on 2024-02-27 and reserved on 2024-02-28. Public sources do not distinguish a voluntary return, revocation, or reclamation. AFRINIC publishes no fixed period for which it holds returned ASNs before reissuing them, so the tracker gives no estimate. This does not confirm availability."},{"raw_change_id":532360,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:17:24+00:00","current":1,"public_explanation":"Removed from active registration. The tracker found it by comparing AFRINIC's daily statistics. AFRINIC's statistics show it allocated (dated 2012-12-19) on 2024-02-27 and reserved on 2024-02-28. Public sources do not distinguish a voluntary return, revocation, or reclamation. AFRINIC publishes no fixed period for which it holds returned ASNs before reissuing them, so the tracker gives no estimate. This does not confirm availability."}],"4374c58747c608d7":[{"raw_change_id":199057,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:09:11+00:00","current":0,"public_explanation":"No transfer record matches. AFRINIC's statistics show it available on 2012-12-19 and allocated (dated 2012-12-19) on 2012-12-20. It moved from AFRINIC's unissued pool to an active registration dated around that day, so it appears to be newly issued by AFRINIC."},{"raw_change_id":199057,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:08:13+00:00","current":0,"public_explanation":"No transfer record matches. AFRINIC's statistics show it available on 2012-12-19 and allocated (dated 2012-12-19) on 2012-12-20. It moved from AFRINIC's unissued pool to an active registration dated around that day, so it appears to be newly issued by AFRINIC."},{"raw_change_id":199057,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:51:09+00:00","current":0,"public_explanation":"No transfer record matches. AFRINIC's statistics show it available on 2012-12-19 and allocated (dated 2012-12-19) on 2012-12-20. It moved from AFRINIC's unissued pool to an active registration dated around that day, so it appears to be newly issued by AFRINIC."},{"raw_change_id":199057,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:44+00:00","current":1,"public_explanation":"No transfer record matches. AFRINIC's statistics show it available on 2012-12-19 and allocated (dated 2012-12-19) on 2012-12-20. It moved from AFRINIC's unissued pool to an active registration dated around that day, so it appears to be newly issued by AFRINIC."}]},"arin_statistics_now":{"status":"not listed"}}