{"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":"70.144.0.0/12","resource_type":"ipv4","page":"https://rirtracker.com/ip/70.144.0.0-70.159.255.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2004-07-28), allocated (dated 2019-12-11), allocated (dated 2025-12-12)"},"current_holder":{"rir":"ARIN","org":"AT&T Corp.","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":42233,"date":"2025-12-12T19:25:15Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"AT&T Enterprises, LLC","recipient_org":"Greeneville Energy Authority","range":"70.145.0.0/16","log":"ARIN"},{"id":37667,"date":"2024-12-05T15:41:57Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"AT&T Corp.","recipient_org":"AT&T Enterprises, LLC","range":"70.144.0.0/13","log":"ARIN"},{"id":37668,"date":"2024-12-05T15:41:57Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"AT&T Corp.","recipient_org":"AT&T Enterprises, LLC","range":"70.154.0.0/15","log":"ARIN"},{"id":37669,"date":"2024-12-05T15:41:57Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"AT&T Corp.","recipient_org":"AT&T Enterprises, LLC","range":"70.158.0.0/15","log":"ARIN"},{"id":19485,"date":"2019-12-11T17:19:15Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"AT&T Corp.","recipient_org":"Microsoft Corporation","range":"70.152.0.0/15","log":"ARIN"},{"id":19486,"date":"2019-12-11T17:19:15Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"AT&T Corp.","recipient_org":"Microsoft Corporation","range":"70.156.0.0/15","log":"ARIN"},{"id":14408,"date":"2018-09-10T16:42:34Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"BellSouth.net Inc.","recipient_org":"AT&T Corp.","range":"70.144.0.0/12","log":"ARIN"}],"events":[{"event_id":"978f0906cba6d185","registry":"ARIN","report_date":"2018-09-10","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"70.144.0.0/12","start":"70.144.0.0","end":"70.159.255.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"BellSouth.net Inc.","recipient_organization":"AT&T Corp.","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:38+00:00","page":"https://rirtracker.com/ip/70.144.0.0-70.159.255.255/#e-978f0906cba6d185","report_page":"https://rirtracker.com/arin/reports/2018-09-10/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/70.144.0.0-70.159.255.255.json","observed":"Merger/acquisition: BellSouth.net Inc. (ARIN) to AT&T Corp. (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from BellSouth.net Inc. (ARIN) to AT&T Corp. (ARIN) on 2018-09-10 16:42 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 2018-09-10 16:42 UTC, BellSouth.net Inc. (ARIN) to AT&T Corp. (ARIN); resources moved: 70.144.0.0/12"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20180909.gz","retrieved_at":"2026-10-12T21:52:13+00:00","summary":"ARIN delegated statistics 2018-09-09 (produced 2018-09-09T05:00:16+00:00), before the report: allocated (dated 2004-07-28)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20180911.gz","retrieved_at":"2026-10-12T21:52:18+00:00","summary":"ARIN delegated statistics 2018-09-11 (produced 2018-09-11T05:00:17+00:00), after the report: allocated (dated 2004-07-28)"}]}],"classification_history":{"978f0906cba6d185":[{"raw_change_id":555642,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:38+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from BellSouth.net Inc. (ARIN) to AT&T Corp. (ARIN) on 2018-09-10 16:42 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 2004-07-28), allocated (dated 2019-12-11), allocated (dated 2025-12-12)"}}