{"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":"131.149.0.0/16","resource_type":"ipv4","page":"https://rirtracker.com/ip/131.149.0.0-131.149.255.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2017-11-27), allocated (dated 2025-08-22), allocated (dated 2025-09-02), allocated (dated 2025-09-04), allocated (dated 2025-09-10), allocated (dated 2025-09-12), allocated (dated 2026-11-04)"},"current_holder":{"rir":null,"org":null,"how":null},"rdap_snapshots":[],"transfers":[{"id":134591,"date":"2026-11-04T22:42:38Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Charter Communications LLC","recipient_org":"Render","range":"131.149.160.0/19","log":"ARIN"},{"id":134590,"date":"2026-11-04T22:39:28Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Charter Communications LLC","recipient_org":"Cascade Access, LLC","range":"131.149.0.0/19","log":"ARIN"},{"id":41282,"date":"2025-09-12T16:26:20Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Charter Communications LLC","recipient_org":"Xpress Data, Inc.","range":"131.149.244.0/22","log":"ARIN"},{"id":41243,"date":"2025-09-10T18:19:43Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Charter Communications LLC","recipient_org":"SyncWave, LLC","range":"131.149.52.0/22","log":"ARIN"},{"id":41231,"date":"2025-09-09T15:27:16Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"APNIC","source_org":"Charter Communications LLC","recipient_org":"Leap Telecommunications Pty Ltd","range":"131.149.248.0/22","log":"ARIN"},{"id":131245,"date":"2025-09-09T07:04:01Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"APNIC","source_org":"CC04","recipient_org":"Leap Telecommunications Pty Ltd","range":"131.149.248.0/22","log":"APNIC"},{"id":41219,"date":"2025-09-04T18:50:22Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Charter Communications LLC","recipient_org":"Notion Labs, Inc.","range":"131.149.232.0/21","log":"ARIN"},{"id":41195,"date":"2025-09-02T11:51:45Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Charter Communications LLC","recipient_org":"CivicPlus, LLC","range":"131.149.240.0/22","log":"ARIN"},{"id":41150,"date":"2025-08-22T19:27:36Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Charter Communications LLC","recipient_org":"White River Connect","range":"131.149.224.0/21","log":"ARIN"},{"id":11456,"date":"2017-11-27T15:01:18Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Northern Telecom Canada Ltd.","recipient_org":"Charter Communications","range":"131.149.0.0/16","log":"ARIN"}],"events":[{"event_id":"23afb6657f29630f","registry":"ARIN","report_date":"2017-11-27","source":"arin_issued","raw_action":"ADD","raw_line":"Add 131.149.0.0-131.149.255.255","resource_type":"ipv4","resource":"131.149.0.0/16","start":"131.149.0.0","end":"131.149.255.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-ARIN transfer","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Northern Telecom Canada Ltd.","recipient_organization":"Charter Communications","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:52:00+00:00","page":"https://rirtracker.com/ip/131.149.0.0-131.149.255.255/#e-23afb6657f29630f","report_page":"https://rirtracker.com/arin/reports/2017-11-27/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/131.149.0.0-131.149.255.255.json","explanation":"ARIN's transfer log records a transfer from Northern Telecom Canada Ltd. (ARIN) to Charter Communications (ARIN) on 2017-11-27 15:01 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/2017-November/003274.html","retrieved_at":"2026-10-12T18:39:51+00:00","summary":"ARIN-Issued report for 2017-11-27: \"Add 131.149.0.0-131.149.255.255\""},{"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 2017-11-27 15:01 UTC, Northern Telecom Canada Ltd. (ARIN) to Charter Communications (ARIN); resources moved: 131.149.0.0/16"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20171126.gz","retrieved_at":"2026-10-12T21:37:57+00:00","summary":"ARIN delegated statistics 2017-11-26 (produced 2017-11-26T06:08:28+00:00), before the report: assigned (dated 1988-11-23)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20171128.gz","retrieved_at":"2026-10-12T21:38:02+00:00","summary":"ARIN delegated statistics 2017-11-28 (produced 2017-11-28T06:09:49+00:00), after the report: allocated (dated 2017-11-27)"}]}],"classification_history":{"23afb6657f29630f":[{"raw_change_id":152215,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T03:39:39+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Northern Telecom Canada Ltd. (ARIN) to Charter Communications (ARIN) on 2017-11-27 15:01 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":152215,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:06:10+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Northern Telecom Canada Ltd. (ARIN) to Charter Communications (ARIN) on 2017-11-27 15:01 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":152215,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:48:51+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Northern Telecom Canada Ltd. (ARIN) to Charter Communications (ARIN) on 2017-11-27 15:01 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":152215,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:52:00+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from Northern Telecom Canada Ltd. (ARIN) to Charter Communications (ARIN) on 2017-11-27 15:01 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 2017-11-27), allocated (dated 2025-08-22), allocated (dated 2025-09-02), allocated (dated 2025-09-04), allocated (dated 2025-09-10), allocated (dated 2025-09-12), allocated (dated 2026-11-04)"}}