{"classifier_version":"1.0.0","generated":"2026-10-09T21:19:22+00:00","documentation":"https://rirtracker.com/api/","disclaimer":"This site independently analyzes publicly available Internet number-resource records. It is not affiliated with or endorsed by the American Registry for Internet Numbers (ARIN), the Number Resource Organization (NRO), or any 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":"206.15.48.0/20","resource_type":"ipv4","page":"https://rirtracker.com/ip/206.15.48.0-206.15.63.255/","arin_statistics_now":{"file_date":"2026-10-09","status":"not listed"},"current_holder":{"rir":"RIPE NCC","org":"Contrust Solutions S.R.L","how":"the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":44720,"date":"2026-07-14T14:35:32Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_org":"SirsiDynix","recipient_org":"Contrust Solutions S.R.L","range":"206.15.48.0/20"},{"id":33531,"date":"2023-11-08T14:00:12Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Data Research Associates, Inc.","recipient_org":"SirsiDynix","range":"206.15.32.0/19"}],"events":[{"event_id":"57b36e49590660f9","report_date":"2026-07-14","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"ipv4","resource":"206.15.48.0/20","start":"206.15.48.0","end":"206.15.63.255","classification":"INTER_RIR_TRANSFER_OUT","classification_label":"Inter-RIR transfer out of ARIN","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_organization":"SirsiDynix","recipient_organization":"Contrust Solutions S.R.L","inventory_effect":"Transferred out of ARIN administration; not offered to ARIN applicants","inventory_effect_code":"TRANSFER_OUT","provisional":false,"classifier_version":"1.0.0","classified_at":"2026-10-09T19:28:31+00:00","page":"https://rirtracker.com/ip/206.15.48.0-206.15.63.255/#e-57b36e49590660f9","evidence_url":"https://rirtracker.com/api/v1/events/57b36e49590660f9.json","piece_of":{"resource":"206.15.32.0/19","page":"https://rirtracker.com/ip/206.15.32.0-206.15.63.255/"},"explanation":"ARIN's transfer log records a transfer from SirsiDynix (ARIN) to Contrust Solutions S.R.L (RIPE NCC) on 2026-07-14 14:35 UTC: it left ARIN for RIPE NCC. ARIN-Issued didn't list this change; it is not a new allocation and is not offered to ARIN applicants.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260715","retrieved_at":"2026-10-09T19:04:30+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 206.15.48.0/20 allocated on 2026-07-14, not listed on 2026-07-15"},{"type":"transfer","url":"https://ftp.arin.net/pub/stats/arin/transfers/transfers_latest.json","retrieved_at":"2026-10-09T18:54:15+00:00","summary":"Transfer log: RESOURCE_TRANSFER on 2026-07-14 14:35 UTC, SirsiDynix (ARIN) to Contrust Solutions S.R.L (RIPE NCC); resources moved: 206.15.48.0/20"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260713","retrieved_at":"2026-10-09T19:04:23+00:00","summary":"ARIN delegated statistics 2026-07-13 (produced 2026-07-13T09:00:22+00:00), before the report: allocated (dated 1995-05-19)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260715","retrieved_at":"2026-10-09T19:04:30+00:00","summary":"ARIN delegated statistics 2026-07-15 (produced 2026-07-15T09:00:21+00:00), after the report: not listed"}]}],"classification_history":{"57b36e49590660f9":[{"raw_change_id":7158,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.0.0","classified_at":"2026-10-09T19:28:31+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from SirsiDynix (ARIN) to Contrust Solutions S.R.L (RIPE NCC) on 2026-07-14 14:35 UTC: it left ARIN for RIPE NCC. ARIN-Issued didn't list this change; it is not a new allocation and is not offered to ARIN applicants."}]}}