{"classifier_version":"1.0.0","generated":"2026-10-10T14:39:54+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":"168.151.160.0/20","resource_type":"ipv4","page":"https://rirtracker.com/ip/168.151.160.0-168.151.175.255/","arin_statistics_now":{"file_date":"2026-10-10","status":"allocated (dated 2026-04-01)"},"current_holder":{"rir":"ARIN","org":"Dryden Fiber","how":"ARIN's statistics for 2026-10-10 and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":43357,"date":"2026-04-01T11:28:20Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Big Sky Services, Inc.","recipient_org":"Dryden Fiber","range":"168.151.160.0/20"},{"id":41671,"date":"2025-10-10T20:04:39Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Intelligence Network, Inc.","recipient_org":"Big Sky Services, Inc.","range":"168.151.160.0/20"}],"events":[{"event_id":"a500a5963dd3ee59","report_date":"2026-04-01","source":"arin_issued","raw_action":"ADD","raw_line":"Add 168.151.160.0-168.151.175.255","resource_type":"ipv4","resource":"168.151.160.0/20","start":"168.151.160.0","end":"168.151.175.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-ARIN transfer","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Big Sky Services, Inc.","recipient_organization":"Dryden Fiber","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.0.0","classified_at":"2026-10-09T19:28:19+00:00","page":"https://rirtracker.com/ip/168.151.160.0-168.151.175.255/#e-a500a5963dd3ee59","evidence_url":"https://rirtracker.com/api/v1/events/a500a5963dd3ee59.json","explanation":"ARIN's transfer log records a transfer from Big Sky Services, Inc. (ARIN) to Dryden Fiber (ARIN) on 2026-04-01 11:28 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2026-April/006319.html","retrieved_at":"2026-10-09T18:53:59+00:00","summary":"ARIN-Issued report for 2026-04-01: \"Add 168.151.160.0-168.151.175.255\""},{"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 2026-04-01 11:28 UTC, Big Sky Services, Inc. (ARIN) to Dryden Fiber (ARIN); resources moved: 168.151.160.0/20"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260331","retrieved_at":"2026-10-09T18:59:07+00:00","summary":"ARIN delegated statistics 2026-03-31 (produced 2026-03-31T13:00:39+00:00), before the report: allocated (dated 1994-04-04)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260402","retrieved_at":"2026-10-09T18:59:14+00:00","summary":"ARIN delegated statistics 2026-04-02 (produced 2026-04-02T13:00:39+00:00), after the report: allocated (dated 2026-04-01)"}]}],"classification_history":{"a500a5963dd3ee59":[{"raw_change_id":1430,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.0.0","classified_at":"2026-10-09T19:28:19+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from Big Sky Services, Inc. (ARIN) to Dryden Fiber (ARIN) on 2026-04-01 11:28 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."}]}}