{"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":"137.239.224.0/19","resource_type":"ipv4","page":"https://rirtracker.com/ip/137.239.224.0-137.239.255.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2021-05-19)"},"current_holder":{"rir":"ARIN","org":"Dobson Technologies - Transport and Telecom Solutions, LLC","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":24678,"date":"2021-05-19T21:25:52Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Chaney Systems, Inc.","recipient_org":"Dobson Technologies - Transport and Telecom Solutions, LLC","range":"137.239.224.0/19","log":"ARIN"}],"events":[{"event_id":"0be5c11a19c5e07d","registry":"ARIN","report_date":"2021-05-19","source":"arin_issued","raw_action":"ADD","raw_line":"Add 137.239.224.0-137.239.255.255","resource_type":"ipv4","resource":"137.239.224.0/19","start":"137.239.224.0","end":"137.239.255.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-ARIN transfer","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Chaney Systems, Inc.","recipient_organization":"Dobson Technologies - Transport and Telecom Solutions, LLC","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:53:09+00:00","page":"https://rirtracker.com/ip/137.239.224.0-137.239.255.255/#e-0be5c11a19c5e07d","report_page":"https://rirtracker.com/arin/reports/2021-05-19/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/137.239.224.0-137.239.255.255.json","piece_of":{"resource":"137.239.0.0/16","page":"https://rirtracker.com/ip/137.239.0.0-137.239.255.255/"},"explanation":"ARIN's transfer log records a transfer from Chaney Systems, Inc. (ARIN) to Dobson Technologies - Transport and Telecom Solutions, LLC (ARIN) on 2021-05-19 21:25 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/2021-May/004541.html","retrieved_at":"2026-10-12T18:41:19+00:00","summary":"ARIN-Issued report for 2021-05-19: \"Add 137.239.224.0-137.239.255.255\""},{"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: RESOURCE_TRANSFER on 2021-05-19 21:25 UTC, Chaney Systems, Inc. (ARIN) to Dobson Technologies - Transport and Telecom Solutions, LLC (ARIN); resources moved: 137.239.224.0/19"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2021/delegated-arin-extended-20210518.gz","retrieved_at":"2026-10-12T22:42:52+00:00","summary":"ARIN delegated statistics 2021-05-18 (produced 2021-05-18T14:00:12+00:00), before the report: assigned (dated 1990-01-16)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2021/delegated-arin-extended-20210520.gz","retrieved_at":"2026-10-12T22:42:57+00:00","summary":"ARIN delegated statistics 2021-05-20 (produced 2021-05-20T14:00:12+00:00), after the report: allocated (dated 2021-05-19)"}]}],"classification_history":{"0be5c11a19c5e07d":[{"raw_change_id":171407,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T03:52:30+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Chaney Systems, Inc. (ARIN) to Dobson Technologies - Transport and Telecom Solutions, LLC (ARIN) on 2021-05-19 21:25 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":171407,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:07:02+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Chaney Systems, Inc. (ARIN) to Dobson Technologies - Transport and Telecom Solutions, LLC (ARIN) on 2021-05-19 21:25 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":171407,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:49:49+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Chaney Systems, Inc. (ARIN) to Dobson Technologies - Transport and Telecom Solutions, LLC (ARIN) on 2021-05-19 21:25 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":171407,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:53:09+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from Chaney Systems, Inc. (ARIN) to Dobson Technologies - Transport and Telecom Solutions, LLC (ARIN) on 2021-05-19 21:25 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."}]},"arin_statistics_now":{"status":"allocated (dated 2021-05-19)"}}