{"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":"143.223.0.0/16","resource_type":"ipv4","page":"https://rirtracker.com/ip/143.223.0.0-143.223.255.255/","statistics_now":{"registry":"ARIN","status":"allocated (47 records, dated 1990-06-30 to 2026-02-20) (only part of the range)"},"current_holder":{"rir":null,"org":null,"how":null},"rdap_snapshots":[],"transfers":[{"id":42953,"date":"2026-02-20T20:55:36Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"WME","recipient_org":"MARI USA HOLDINGS LLC","range":"143.223.160.0/24","log":"ARIN"},{"id":42874,"date":"2026-02-18T19:26:05Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"WME","recipient_org":"TKO Worldwide, 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Inc.","range":"143.223.82.0/23","log":"ARIN"},{"id":39174,"date":"2025-03-03T13:51:51Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"WME","recipient_org":"IP Pathways, LLC","range":"143.223.142.0/23","log":"ARIN"},{"id":38121,"date":"2024-12-23T15:45:15Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"WME","recipient_org":"FreedomLinx Technologies","range":"143.223.134.0/24","log":"ARIN"},{"id":38114,"date":"2024-12-20T22:08:54Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"WME","recipient_org":"Farmers Mutual Hail Insurance Company of Iowa","range":"143.223.137.0/24","log":"ARIN"},{"id":37391,"date":"2024-12-02T12:49:25Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"WME","recipient_org":"Venn Technology 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NCC","source_org":"WME","recipient_org":"Sensio AS","range":"143.223.177.0/24","log":"ARIN"},{"id":108236,"date":"2024-10-02T19:00:00Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_org":null,"recipient_org":"55 IT Services GmbH","range":"143.223.100.0/24","log":"RIPE NCC"},{"id":36855,"date":"2024-10-02T14:13:59Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_org":"WME","recipient_org":"55 IT Services GmbH ","range":"143.223.100.0/24","log":"ARIN"},{"id":36839,"date":"2024-09-26T20:24:32Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"WME","recipient_org":"New Hope Telephone Cooperative","range":"143.223.64.0/20","log":"ARIN"},{"id":107778,"date":"2024-09-09T19:00:00Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_org":null,"recipient_org":"Proton AG","range":"143.223.96.0/22","log":"RIPE NCC"},{"id":36695,"date":"2024-09-09T14:12:28Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_org":"WME","recipient_org":"Proton AG ","range":"143.223.96.0/22","log":"ARIN"},{"id":36687,"date":"2024-09-06T18:17:39Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"WME","recipient_org":"SCI REMC","range":"143.223.112.0/20","log":"ARIN"},{"id":36577,"date":"2024-09-04T18:59:59Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"WME","recipient_org":"Prinetime Internet Solutions, LLC","range":"143.223.168.0/22","log":"ARIN"},{"id":36438,"date":"2024-08-29T17:08:50Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"WME","recipient_org":"Ovior","range":"143.223.172.0/24","log":"ARIN"},{"id":35333,"date":"2024-04-25T19:58:16Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"WME","recipient_org":"Long Lines Internet","range":"143.223.184.0/21","log":"ARIN"},{"id":35331,"date":"2024-04-25T19:53:45Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"WME","recipient_org":"HyperFiber","range":"143.223.144.0/20","log":"ARIN"},{"id":34732,"date":"2024-03-04T21:09:47Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"WME","recipient_org":"Premier Communications","range":"143.223.32.0/19","log":"ARIN"},{"id":33564,"date":"2023-11-13T18:07:22Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"William Morris Agency, Inc.","recipient_org":"WME","range":"143.223.0.0/16","log":"ARIN"}],"events":[{"event_id":"77bc8a385afc2611","registry":"ARIN","report_date":"2023-11-13","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"143.223.0.0/16","start":"143.223.0.0","end":"143.223.255.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"William Morris Agency, Inc.","recipient_organization":"WME","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:11+00:00","page":"https://rirtracker.com/ip/143.223.0.0-143.223.255.255/#e-77bc8a385afc2611","report_page":"https://rirtracker.com/arin/reports/2023-11-13/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/143.223.0.0-143.223.255.255.json","observed":"Merger/acquisition: William Morris Agency, Inc. (ARIN) to WME (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from William Morris Agency, Inc. (ARIN) to WME (ARIN) on 2023-11-13 18:07 UTC. The registration changed hands; it is not a new allocation from ARIN. ARIN-Issued and ARIN's statistics don't show this change; only the transfer log records it.","evidence":[{"type":"transfer","url":"https://ftp.arin.net/pub/stats/arin/transfers/transfers_latest.json","retrieved_at":"2026-10-13T13:57:20+00:00","summary":"Transfer log: MERGER_ACQUISITION on 2023-11-13 18:07 UTC, William Morris Agency, Inc. (ARIN) to WME (ARIN); resources moved: 143.223.0.0/16"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2023/delegated-arin-extended-20231112.gz","retrieved_at":"2026-10-12T23:30:09+00:00","summary":"ARIN delegated statistics 2023-11-12 (produced 2023-11-12T14:00:33+00:00), before the report: allocated (dated 1990-06-30)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2023/delegated-arin-extended-20231114.gz","retrieved_at":"2026-10-12T23:30:14+00:00","summary":"ARIN delegated statistics 2023-11-14 (produced 2023-11-14T14:00:33+00:00), after the report: allocated (dated 1990-06-30)"}]}],"classification_history":{"77bc8a385afc2611":[{"raw_change_id":569508,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:11+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from William Morris Agency, Inc. (ARIN) to WME (ARIN) on 2023-11-13 18:07 UTC. The registration changed hands; it is not a new allocation from ARIN. ARIN-Issued and ARIN's statistics don't show this change; only the transfer log records it."}]},"arin_statistics_now":{"status":"allocated (47 records, dated 1990-06-30 to 2026-02-20) (only part of the range)"}}