{"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":"35.248.0.0/13","resource_type":"ipv4","page":"https://rirtracker.com/ip/35.248.0.0-35.255.255.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2012-08-30), allocated (dated 2025-01-14)"},"current_holder":{"rir":"ARIN","org":"Level 3 Parent, LLC","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":38485,"date":"2025-01-14T12:07:48Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Level 3 Parent, LLC","recipient_org":"Google LLC","range":"35.252.0.0/14","log":"ARIN"},{"id":27112,"date":"2022-03-08T21:23:48Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"tw telecom holdings, inc.","recipient_org":"Level 3 Parent, LLC","range":"35.248.0.0/13","log":"ARIN"},{"id":5390,"date":"2012-08-30T16:45:00Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Merit Network Inc.","recipient_org":"tw telecom holdings, inc.","range":"35.248.0.0/13","log":"ARIN"}],"events":[{"event_id":"aa22a6c2460f10fa","registry":"ARIN","report_date":"2022-03-08","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"35.248.0.0/13","start":"35.248.0.0","end":"35.255.255.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"tw telecom holdings, inc.","recipient_organization":"Level 3 Parent, LLC","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:00+00:00","page":"https://rirtracker.com/ip/35.248.0.0-35.255.255.255/#e-aa22a6c2460f10fa","report_page":"https://rirtracker.com/arin/reports/2022-03-08/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/35.248.0.0-35.255.255.255.json","observed":"Merger/acquisition: tw telecom holdings, inc. (ARIN) to Level 3 Parent, LLC (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from tw telecom holdings, inc. (ARIN) to Level 3 Parent, LLC (ARIN) on 2022-03-08 21:23 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 2022-03-08 21:23 UTC, tw telecom holdings, inc. (ARIN) to Level 3 Parent, LLC (ARIN); resources moved: 35.248.0.0/13"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2022/delegated-arin-extended-20220307.gz","retrieved_at":"2026-10-12T22:57:55+00:00","summary":"ARIN delegated statistics 2022-03-07 (produced 2022-03-07T14:00:10+00:00), before the report: allocated (dated 2012-08-30)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2022/delegated-arin-extended-20220309.gz","retrieved_at":"2026-10-12T22:58:00+00:00","summary":"ARIN delegated statistics 2022-03-09 (produced 2022-03-09T14:00:11+00:00), after the report: allocated (dated 2012-08-30)"}]},{"event_id":"ac7003794c1ad22c","registry":"ARIN","report_date":"2012-08-30","source":"arin_issued","raw_action":"ADD","raw_line":"Add 35.248.0.0-35.255.255.255","resource_type":"ipv4","resource":"35.248.0.0/13","start":"35.248.0.0","end":"35.255.255.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-ARIN transfer","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Merit Network Inc.","recipient_organization":"tw telecom holdings, inc.","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:51:00+00:00","page":"https://rirtracker.com/ip/35.248.0.0-35.255.255.255/#e-ac7003794c1ad22c","report_page":"https://rirtracker.com/arin/reports/2012-08-30/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/35.248.0.0-35.255.255.255.json","piece_of":{"resource":"35.0.0.0/8","page":"https://rirtracker.com/ip/35.0.0.0-35.255.255.255/"},"explanation":"ARIN's transfer log records a transfer from Merit Network Inc. (ARIN) to tw telecom holdings, inc. (ARIN) on 2012-08-30 16:45 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/2012-August/001358.html","retrieved_at":"2026-10-12T18:37:37+00:00","summary":"ARIN-Issued report for 2012-08-30: \"Add 35.248.0.0-35.255.255.255\""},{"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 2012-08-30 16:45 UTC, Merit Network Inc. (ARIN) to tw telecom holdings, inc. (ARIN); resources moved: 35.248.0.0/13"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2012/delegated-arin-20120829.gz","retrieved_at":"2026-10-12T19:47:49+00:00","summary":"ARIN delegated statistics 2012-08-29, before the report: allocated (dated 1994-04-01)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2012/delegated-arin-20120831.gz","retrieved_at":"2026-10-12T19:47:53+00:00","summary":"ARIN delegated statistics 2012-08-31, after the report: allocated (dated 2012-08-30)"}]}],"classification_history":{"aa22a6c2460f10fa":[{"raw_change_id":564888,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:00+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from tw telecom holdings, inc. (ARIN) to Level 3 Parent, LLC (ARIN) on 2022-03-08 21:23 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."}],"ac7003794c1ad22c":[{"raw_change_id":126895,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T03:18:07+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Merit Network Inc. (ARIN) to tw telecom holdings, inc. (ARIN) on 2012-08-30 16:45 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":126895,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:05:25+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Merit Network Inc. (ARIN) to tw telecom holdings, inc. (ARIN) on 2012-08-30 16:45 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":126895,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:48:00+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Merit Network Inc. (ARIN) to tw telecom holdings, inc. (ARIN) on 2012-08-30 16:45 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":126895,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:51:00+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from Merit Network Inc. (ARIN) to tw telecom holdings, inc. (ARIN) on 2012-08-30 16:45 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 2012-08-30), allocated (dated 2025-01-14)"}}