{"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":"137.83.13.0/24","resource_type":"ipv4","page":"https://rirtracker.com/ip/137.83.13.0-137.83.13.255/","arin_statistics_now":{"file_date":"2026-10-09","status":"allocated (dated 2026-08-06)"},"current_holder":{"rir":"ARIN","org":"Cleveland Browns","how":"ARIN's statistics for 2026-10-09 and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":45065,"date":"2026-08-06T19:11:34Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Momentum Telecom, Inc.","recipient_org":"Cleveland Browns","range":"137.83.13.0/24"},{"id":28477,"date":"2022-07-06T20:27:19Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"DCT Telecom Group, Inc.","recipient_org":"Momentum Telecom, Inc.","range":"137.83.13.0/24"},{"id":18621,"date":"2019-08-14T14:17:16Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Northeast Technology Solutions, LLC","recipient_org":"DCT Telecom Group, Inc.","range":"137.83.13.0/24"},{"id":16521,"date":"2018-12-05T13:45:14Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"OMNOVA Solutions Inc","recipient_org":"Northeast Technology Solutions, LLC","range":"137.83.0.0/16"}],"events":[{"event_id":"83b435aa7e159d56","report_date":"2026-08-06","source":"arin_issued","raw_action":"ADD","raw_line":"Add 137.83.13.0-137.83.13.255","resource_type":"ipv4","resource":"137.83.13.0/24","start":"137.83.13.0","end":"137.83.13.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-ARIN transfer","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Momentum Telecom, Inc.","recipient_organization":"Cleveland Browns","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.0.0","classified_at":"2026-10-09T19:28:23+00:00","page":"https://rirtracker.com/ip/137.83.13.0-137.83.13.255/#e-83b435aa7e159d56","evidence_url":"https://rirtracker.com/api/v1/events/83b435aa7e159d56.json","explanation":"ARIN's transfer log records a transfer from Momentum Telecom, Inc. (ARIN) to Cleveland Browns (ARIN) on 2026-08-06 19:11 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-August/006449.html","retrieved_at":"2026-10-09T18:54:07+00:00","summary":"ARIN-Issued report for 2026-08-06: \"Add 137.83.13.0-137.83.13.255\""},{"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 2026-08-06 19:11 UTC, Momentum Telecom, Inc. (ARIN) to Cleveland Browns (ARIN); resources moved: 137.83.13.0/24"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260805","retrieved_at":"2026-10-09T19:05:37+00:00","summary":"ARIN delegated statistics 2026-08-05 (produced 2026-08-05T13:00:20+00:00), before the report: allocated (dated 2019-08-14)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260807","retrieved_at":"2026-10-09T19:05:43+00:00","summary":"ARIN delegated statistics 2026-08-07 (produced 2026-08-07T13:00:20+00:00), after the report: allocated (dated 2026-08-06)"}]}],"classification_history":{"83b435aa7e159d56":[{"raw_change_id":4135,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.0.0","classified_at":"2026-10-09T19:28:23+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from Momentum Telecom, Inc. (ARIN) to Cleveland Browns (ARIN) on 2026-08-06 19:11 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."}]}}