{"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":"AS27256","resource_type":"asn","page":"https://rirtracker.com/asn/27256/","statistics_now":{"registry":"ARIN","status":"assigned (dated 2010-09-21)"},"current_holder":{"rir":"ARIN","org":null,"how":"ARIN's latest statistics"},"rdap_snapshots":[],"transfers":[],"events":[{"event_id":"ed8f3bf2a78f577b","registry":"ARIN","report_date":"2009-09-09","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"asn","resource":"AS27256","start":27256,"end":27256,"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":"2026-10-13T23:55:18+00:00","page":"https://rirtracker.com/asn/27256/#e-ed8f3bf2a78f577b","report_page":"https://rirtracker.com/arin/reports/2009-09-09/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/27256.json","observed":"AS27256 allocated on 2009-09-09, not listed on 2009-09-10","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":"2010-03-09","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 2007-11-26) on 2009-09-08 and not issued on 2009-09-10. (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 2010-03-09. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2009/delegated-arin-20090910.gz","retrieved_at":"2026-10-12T18:54:59+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: AS27256 allocated on 2009-09-09, not listed on 2009-09-10"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2009/delegated-arin-20090908.gz","retrieved_at":"2026-10-12T18:54:54+00:00","summary":"ARIN delegated statistics 2009-09-08, before the report: allocated (dated 2007-11-26)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2009/delegated-arin-20090910.gz","retrieved_at":"2026-10-12T18:54:59+00:00","summary":"ARIN delegated statistics 2009-09-10, after the report: not issued"}]}],"classification_history":{"ed8f3bf2a78f577b":[{"raw_change_id":209059,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:12:10+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 2007-11-26) on 2009-09-08 and not issued on 2009-09-10. (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 2010-03-09. This does not confirm availability."},{"raw_change_id":209059,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:08:43+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 2007-11-26) on 2009-09-08 and not issued on 2009-09-10. (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 2010-03-09. This does not confirm availability."},{"raw_change_id":209059,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:51:41+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 allocated (dated 2007-11-26) on 2009-09-08 and not issued on 2009-09-10. (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 2010-03-09. This does not confirm availability."},{"raw_change_id":209059,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:55:18+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 2007-11-26) on 2009-09-08 and not issued on 2009-09-10. (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 2010-03-09. This does not confirm availability."}]},"arin_statistics_now":{"status":"assigned (dated 2010-09-21)"}}