{"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":"AS25164","resource_type":"asn","page":"https://rirtracker.com/asn/25164/","statistics_now":{"registry":"RIPE NCC","status":"allocated (dated 2002-08-16)"},"current_holder":{"rir":"RIPE NCC","org":"Flughafen Zurich AG","how":"The RIPE NCC's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":62354,"date":"2019-02-06T19:00:00Z","type":"MERGER_ACQUISITION","source_rir":"RIPE NCC","recipient_rir":"RIPE NCC","source_org":"APT Airport Technologies AG","recipient_org":"Flughafen Zurich AG","range":"AS25164","log":"RIPE NCC"}],"events":[{"event_id":"bce71b9d8e2689e9","registry":"RIPE NCC","report_date":"2019-02-06","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"asn","resource":"AS25164","start":25164,"end":25164,"classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"RIPE NCC","recipient_rir":"RIPE NCC","source_organization":"APT Airport Technologies AG","recipient_organization":"Flughafen Zurich AG","inventory_effect":"No effect on RIPE NCC applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:47:47+00:00","page":"https://rirtracker.com/asn/25164/#e-bce71b9d8e2689e9","report_page":"https://rirtracker.com/ripe/reports/2019-02-06/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/25164.json","observed":"Merger/acquisition: APT Airport Technologies AG (RIPE NCC) to Flughafen Zurich AG (RIPE NCC)","explanation":"The RIPE NCC's transfer log records a merger, acquisition or reorganization from APT Airport Technologies AG (RIPE NCC) to Flughafen Zurich AG (RIPE NCC) on 2019-02-06 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC.","evidence":[{"type":"transfer","url":"https://ftp.ripe.net/pub/stats/ripencc/transfers/transfers_latest.json","retrieved_at":"2026-10-13T21:49:37+00:00","summary":"Transfer log: MERGER_ACQUISITION on 2019-02-06 19:00 UTC, APT Airport Technologies AG (RIPE NCC) to Flughafen Zurich AG (RIPE NCC); resources moved: AS25164"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2019/delegated-ripencc-extended-20190205.bz2","retrieved_at":"2026-10-12T22:03:38+00:00","summary":"RIPE NCC delegated statistics 2019-02-05 (produced 2019-02-05T22:59:59+00:00), before the change: allocated (dated 2002-08-16)"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2019/delegated-ripencc-extended-20190206.bz2","retrieved_at":"2026-10-12T22:03:41+00:00","summary":"RIPE NCC delegated statistics 2019-02-06 (produced 2019-02-06T22:59:59+00:00), after the change: allocated (dated 2002-08-16)"}]}],"classification_history":{"bce71b9d8e2689e9":[{"raw_change_id":61768,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T02:46:36+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a merger, acquisition or reorganization from APT Airport Technologies AG (RIPE NCC) to Flughafen Zurich AG (RIPE NCC) on 2019-02-06 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC."},{"raw_change_id":61768,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:02:51+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a merger, acquisition or reorganization from APT Airport Technologies AG (RIPE NCC) to Flughafen Zurich AG (RIPE NCC) on 2019-02-06 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC."},{"raw_change_id":61768,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:45:07+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a merger, acquisition or reorganization from APT Airport Technologies AG (RIPE NCC) to Flughafen Zurich AG (RIPE NCC) on 2019-02-06 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC."},{"raw_change_id":61768,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:47:47+00:00","current":1,"public_explanation":"The RIPE NCC's transfer log records a merger, acquisition or reorganization from APT Airport Technologies AG (RIPE NCC) to Flughafen Zurich AG (RIPE NCC) on 2019-02-06 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC."}]},"arin_statistics_now":{"status":"not listed"}}