{"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":"AS55144","resource_type":"asn","page":"https://rirtracker.com/asn/55144/","statistics_now":{"registry":"ARIN","status":"assigned (dated 2026-11-05)"},"current_holder":{"rir":"ARIN","org":"SakerLink, LLC","handle":"SL-2306","how":"RDAP, looked up 2026-11-08 18:19 UTC"},"rdap_snapshots":[{"resource_type":"asn","start_key":"0000000000000000000000000000d768","end_key":"0000000000000000000000000000d768","captured_at":"2026-11-08T18:19:12+00:00","reason":"24h","authoritative_rir":"ARIN","handle":"AS55144","name":"SAKERLINK","status":"active","org_handle":"SL-2306","org_name":"SakerLink, LLC","registration_date":"2026-11-05T14:35:12-05:00","last_changed_date":"2026-11-05T14:35:12-05:00","rdap_url":"https://rdap.arin.net/registry/autnum/55144"},{"resource_type":"asn","start_key":"0000000000000000000000000000d768","end_key":"0000000000000000000000000000d768","captured_at":"2026-11-08T18:19:11+00:00","reason":"24h","authoritative_rir":"ARIN","handle":"AS55144","name":"SAKERLINK","status":"active","org_handle":"SL-2306","org_name":"SakerLink, LLC","registration_date":"2026-11-05T14:35:12-05:00","last_changed_date":"2026-11-05T14:35:12-05:00","rdap_url":"https://rdap.arin.net/registry/autnum/55144"},{"resource_type":"asn","start_key":"0000000000000000000000000000d768","end_key":"0000000000000000000000000000d768","captured_at":"2026-11-06T18:20:07+00:00","reason":"first","authoritative_rir":"ARIN","handle":"AS55144","name":"SAKERLINK","status":"active","org_handle":"SL-2306","org_name":"SakerLink, LLC","registration_date":"2026-11-05T14:35:12-05:00","last_changed_date":"2026-11-05T14:35:12-05:00","rdap_url":"https://rdap.arin.net/registry/autnum/55144"},{"resource_type":"asn","start_key":"0000000000000000000000000000d768","end_key":"0000000000000000000000000000d768","captured_at":"2026-11-06T18:20:06+00:00","reason":"first","authoritative_rir":"ARIN","handle":"AS55144","name":"SAKERLINK","status":"active","org_handle":"SL-2306","org_name":"SakerLink, LLC","registration_date":"2026-11-05T14:35:12-05:00","last_changed_date":"2026-11-05T14:35:12-05:00","rdap_url":"https://rdap.arin.net/registry/autnum/55144"}],"transfers":[],"events":[{"event_id":"7e4abc09d5a05448","registry":"ARIN","report_date":"2026-11-05","source":"arin_issued","raw_action":"ADD","raw_line":"Add AS55144","resource_type":"asn","resource":"AS55144","start":55144,"end":55144,"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":"2026-11-06T18:23:52+00:00","page":"https://rirtracker.com/asn/55144/#e-7e4abc09d5a05448","report_page":"https://rirtracker.com/arin/reports/2026-11-05/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/55144.json","explanation":"No transfer record matches. ARIN's statistics show it reserved on 2026-11-04 and assigned (dated 2026-11-05) on 2026-11-06. The tracker saw this range removed from registration on 2025-08-11 (AS55144), so it appears to have been issued again from ARIN's pool.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2026-November/006539.html","retrieved_at":"2026-11-06T18:17:05+00:00","summary":"ARIN-Issued report for 2026-11-05: \"Add AS55144\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20261104","retrieved_at":"2026-11-04T18:17:12+00:00","summary":"ARIN delegated statistics 2026-11-04 (produced 2026-11-04T14:00:22+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20261106","retrieved_at":"2026-11-06T18:17:16+00:00","summary":"ARIN delegated statistics 2026-11-06 (produced 2026-11-06T14:00:22+00:00), after the report: assigned (dated 2026-11-05)"}]},{"event_id":"7ee6a61b4b47c876","registry":"ARIN","report_date":"2026-11-05","source":"arin_issued","raw_action":"REMOVE","raw_line":"Remove AS55144","resource_type":"asn","resource":"AS55144","start":55144,"end":55144,"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":"2026-11-06T18:23:52+00:00","page":"https://rirtracker.com/asn/55144/#e-7ee6a61b4b47c876","report_page":"https://rirtracker.com/arin/reports/2026-11-05/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/55144.json","explanation":"ARIN's statistics show it reserved on 2026-11-04 and assigned (dated 2026-11-05) on 2026-11-06. ARIN removed its own pool record for this range as part of issuing it: the same report adds AS55144. The issuance is explained on that line.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2026-November/006539.html","retrieved_at":"2026-11-06T18:17:05+00:00","summary":"ARIN-Issued report for 2026-11-05: \"Remove AS55144\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20261104","retrieved_at":"2026-11-04T18:17:12+00:00","summary":"ARIN delegated statistics 2026-11-04 (produced 2026-11-04T14:00:22+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20261106","retrieved_at":"2026-11-06T18:17:16+00:00","summary":"ARIN delegated statistics 2026-11-06 (produced 2026-11-06T14:00:22+00:00), after the report: assigned (dated 2026-11-05)"}]},{"event_id":"d259ed4768341ae8","registry":"ARIN","report_date":"2025-08-11","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"asn","resource":"AS55144","start":55144,"end":55144,"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":"2026-10-14T00:13:33+00:00","page":"https://rirtracker.com/asn/55144/#e-d259ed4768341ae8","report_page":"https://rirtracker.com/arin/reports/2025-08-11/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/55144.json","observed":"AS55144 assigned on 2025-08-11, reserved on 2025-08-12","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":"2026-02-11","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 2013-03-15) on 2025-08-10 and reserved on 2025-08-12. 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 2026-02-11. 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-20250812.gz","retrieved_at":"2026-10-13T00:04:54+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: AS55144 assigned on 2025-08-11, reserved on 2025-08-12"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20250810.gz","retrieved_at":"2026-10-13T00:04:49+00:00","summary":"ARIN delegated statistics 2025-08-10 (produced 2025-08-10T13:00:50+00:00), before the report: assigned (dated 2013-03-15)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20250812.gz","retrieved_at":"2026-10-13T00:04:54+00:00","summary":"ARIN delegated statistics 2025-08-12 (produced 2025-08-12T13:00:52+00:00), after the report: reserved"}]}],"classification_history":{"7e4abc09d5a05448":[{"raw_change_id":579820,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-11-06T18:23:52+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2026-11-04 and assigned (dated 2026-11-05) on 2026-11-06. The tracker saw this range removed from registration on 2025-08-11 (AS55144), so it appears to have been issued again from ARIN's pool."}],"7ee6a61b4b47c876":[{"raw_change_id":579819,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-11-06T18:23:52+00:00","current":1,"public_explanation":"ARIN's statistics show it reserved on 2026-11-04 and assigned (dated 2026-11-05) on 2026-11-06. ARIN removed its own pool record for this range as part of issuing it: the same report adds AS55144. The issuance is explained on that line."}],"d259ed4768341ae8":[{"raw_change_id":484277,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T06:17:00+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 2013-03-15) on 2025-08-10 and reserved on 2025-08-12. 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 2026-02-11. This does not confirm availability."},{"raw_change_id":484277,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:23:58+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 2013-03-15) on 2025-08-10 and reserved on 2025-08-12. 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 2026-02-11. This does not confirm availability."},{"raw_change_id":484277,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T15:08:07+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 2013-03-15) on 2025-08-10 and reserved on 2025-08-12. 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 2026-02-11. This does not confirm availability."},{"raw_change_id":484277,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:13:33+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 2013-03-15) on 2025-08-10 and reserved on 2025-08-12. 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 2026-02-11. 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."}]},"arin_statistics_now":{"status":"assigned (dated 2026-11-05)"}}