{"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":"72.5.0.0/16","resource_type":"ipv4","page":"https://rirtracker.com/ip/72.5.0.0-72.5.255.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2004-09-30), allocated (dated 2023-10-10), allocated (dated 2023-11-01), allocated (dated 2023-11-03), allocated (dated 2024-03-11), allocated (dated 2026-09-24)"},"current_holder":{"rir":"ARIN","org":"Internap Corporation","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":45699,"date":"2026-09-24T21:57:24Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"PF IPV4 Borrower, LLC","recipient_org":"Okta, 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LLC","range":"72.5.36.0/22","log":"ARIN"},{"id":45245,"date":"2026-08-21T17:42:49Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Unitas Global","recipient_org":"PF IPV4 Borrower, LLC","range":"72.5.40.0/23","log":"ARIN"},{"id":45246,"date":"2026-08-21T17:42:49Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Unitas Global","recipient_org":"PF IPV4 Borrower, LLC","range":"72.5.44.0/23","log":"ARIN"},{"id":45247,"date":"2026-08-21T17:42:49Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Unitas Global","recipient_org":"PF IPV4 Borrower, LLC","range":"72.5.100.0/22","log":"ARIN"},{"id":45248,"date":"2026-08-21T17:42:49Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Unitas Global","recipient_org":"PF IPV4 Borrower, 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Inc.","range":"72.5.96.0/22","log":"ARIN"},{"id":33219,"date":"2023-10-10T19:01:07Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Unitas Global","recipient_org":"Amazon.com, Inc.","range":"72.5.116.0/22","log":"ARIN"},{"id":33246,"date":"2023-10-10T19:01:07Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Unitas Global","recipient_org":"Amazon.com, Inc.","range":"72.5.128.0/20","log":"ARIN"},{"id":33220,"date":"2023-10-10T19:01:07Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Unitas Global","recipient_org":"Amazon.com, Inc.","range":"72.5.172.0/22","log":"ARIN"},{"id":33221,"date":"2023-10-10T19:01:07Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Unitas Global","recipient_org":"Amazon.com, Inc.","range":"72.5.220.0/22","log":"ARIN"},{"id":30194,"date":"2023-01-23T17:52:05Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Internap Holding LLC","recipient_org":"Unitas Global","range":"72.5.0.0/17","log":"ARIN"},{"id":30195,"date":"2023-01-23T17:52:05Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Internap Holding LLC","recipient_org":"Unitas Global","range":"72.5.128.0/19","log":"ARIN"},{"id":30196,"date":"2023-01-23T17:52:05Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Internap Holding LLC","recipient_org":"Unitas Global","range":"72.5.164.0/22","log":"ARIN"},{"id":30197,"date":"2023-01-23T17:52:05Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Internap Holding LLC","recipient_org":"Unitas 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Corporation","range":"72.5.0.0/16","log":"ARIN"}],"events":[{"event_id":"d156e518381999c3","registry":"ARIN","report_date":"2018-11-29","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"72.5.0.0/16","start":"72.5.0.0","end":"72.5.255.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Internap Network Services Corporation","recipient_organization":"Internap Corporation","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:42+00:00","page":"https://rirtracker.com/ip/72.5.0.0-72.5.255.255/#e-d156e518381999c3","report_page":"https://rirtracker.com/arin/reports/2018-11-29/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/72.5.0.0-72.5.255.255.json","observed":"Merger/acquisition: Internap Network Services Corporation (ARIN) to Internap Corporation (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Internap Network Services Corporation (ARIN) to Internap Corporation (ARIN) on 2018-11-29 13:45 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 2018-11-29 13:45 UTC, Internap Network Services Corporation (ARIN) to Internap Corporation (ARIN); resources moved: 72.5.0.0/16"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20181128.gz","retrieved_at":"2026-10-12T21:56:23+00:00","summary":"ARIN delegated statistics 2018-11-28 (produced 2018-11-28T06:00:11+00:00), before the report: allocated (dated 2004-09-30)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20181130.gz","retrieved_at":"2026-10-12T21:56:28+00:00","summary":"ARIN delegated statistics 2018-11-30 (produced 2018-11-30T06:00:13+00:00), after the report: allocated (dated 2004-09-30)"}]}],"classification_history":{"d156e518381999c3":[{"raw_change_id":557558,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:42+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Internap Network Services Corporation (ARIN) to Internap Corporation (ARIN) on 2018-11-29 13:45 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 (dated 2004-09-30), allocated (dated 2023-10-10), allocated (dated 2023-11-01), allocated (dated 2023-11-03), allocated (dated 2024-03-11), allocated (dated 2026-09-24)"}}