{"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":"52.129.0.0/21","resource_type":"ipv4","page":"https://rirtracker.com/ip/52.129.0.0-52.129.7.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2016-02-02)"},"current_holder":{"rir":"ARIN","org":"Grande Communications Networks, LLC","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":29679,"date":"2022-11-22T17:50:17Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"ETS TELEPHONE COMPANY, INC.","recipient_org":"Grande Communications Networks, LLC","range":"52.129.0.0/21","log":"ARIN"},{"id":6419,"date":"2016-02-02T19:45:44Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"E.I. du Pont de Nemours and Co., Inc.","recipient_org":"ETS TELEPHONE COMPANY, INC.","range":"52.129.0.0/21","log":"ARIN"}],"events":[{"event_id":"afbf3d2ca38be6e4","registry":"ARIN","report_date":"2022-11-22","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"52.129.0.0/21","start":"52.129.0.0","end":"52.129.7.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"ETS TELEPHONE COMPANY, INC.","recipient_organization":"Grande Communications Networks, LLC","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:05+00:00","page":"https://rirtracker.com/ip/52.129.0.0-52.129.7.255/#e-afbf3d2ca38be6e4","report_page":"https://rirtracker.com/arin/reports/2022-11-22/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/52.129.0.0-52.129.7.255.json","observed":"Merger/acquisition: ETS TELEPHONE COMPANY, INC. (ARIN) to Grande Communications Networks, LLC (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from ETS TELEPHONE COMPANY, INC. (ARIN) to Grande Communications Networks, LLC (ARIN) on 2022-11-22 17:50 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 2022-11-22 17:50 UTC, ETS TELEPHONE COMPANY, INC. (ARIN) to Grande Communications Networks, LLC (ARIN); resources moved: 52.129.0.0/21"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2022/delegated-arin-extended-20221121.gz","retrieved_at":"2026-10-12T23:11:24+00:00","summary":"ARIN delegated statistics 2022-11-21 (produced 2022-11-21T14:00:10+00:00), before the report: allocated (dated 2016-02-02)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2022/delegated-arin-extended-20221123.gz","retrieved_at":"2026-10-12T23:11:29+00:00","summary":"ARIN delegated statistics 2022-11-23 (produced 2022-11-23T14:00:10+00:00), after the report: allocated (dated 2016-02-02)"}]},{"event_id":"7b98b921480552c9","registry":"ARIN","report_date":"2016-02-02","source":"arin_issued","raw_action":"ADD","raw_line":"Add 52.129.0.0-52.129.7.255","resource_type":"ipv4","resource":"52.129.0.0/21","start":"52.129.0.0","end":"52.129.7.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-ARIN transfer","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"E.I. du Pont de Nemours and Co., Inc.","recipient_organization":"ETS TELEPHONE COMPANY, INC.","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:51:32+00:00","page":"https://rirtracker.com/ip/52.129.0.0-52.129.7.255/#e-7b98b921480552c9","report_page":"https://rirtracker.com/arin/reports/2016-02-02/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/52.129.0.0-52.129.7.255.json","piece_of":{"resource":"52.0.0.0/8","page":"https://rirtracker.com/ip/52.0.0.0-52.255.255.255/"},"explanation":"ARIN's transfer log records a transfer from E.I. du Pont de Nemours and Co., Inc. (ARIN) to ETS TELEPHONE COMPANY, INC. (ARIN) on 2016-02-02 19:45 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/2016-February/002609.html","retrieved_at":"2026-10-12T18:39:06+00:00","summary":"ARIN-Issued report for 2016-02-02: \"Add 52.129.0.0-52.129.7.255\""},{"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 2016-02-02 19:45 UTC, E.I. du Pont de Nemours and Co., Inc. (ARIN) to ETS TELEPHONE COMPANY, INC. (ARIN); resources moved: 52.129.0.0/21"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2016/delegated-arin-extended-20160201.gz","retrieved_at":"2026-10-12T21:05:24+00:00","summary":"ARIN delegated statistics 2016-02-01 (produced 2016-02-01T06:03:44+00:00), before the report: assigned (dated 1991-12-19)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2016/delegated-arin-extended-20160203.gz","retrieved_at":"2026-10-12T21:05:29+00:00","summary":"ARIN delegated statistics 2016-02-03 (produced 2016-02-03T06:04:50+00:00), after the report: allocated (dated 2016-02-02)"}]}],"classification_history":{"afbf3d2ca38be6e4":[{"raw_change_id":566727,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:05+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from ETS TELEPHONE COMPANY, INC. (ARIN) to Grande Communications Networks, LLC (ARIN) on 2022-11-22 17:50 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."}],"7b98b921480552c9":[{"raw_change_id":140764,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T03:34:46+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from E.I. du Pont de Nemours and Co., Inc. (ARIN) to ETS TELEPHONE COMPANY, INC. (ARIN) on 2016-02-02 19:45 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":140764,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:05:49+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from E.I. du Pont de Nemours and Co., Inc. (ARIN) to ETS TELEPHONE COMPANY, INC. (ARIN) on 2016-02-02 19:45 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":140764,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:48:26+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from E.I. du Pont de Nemours and Co., Inc. (ARIN) to ETS TELEPHONE COMPANY, INC. (ARIN) on 2016-02-02 19:45 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":140764,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:51:32+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from E.I. du Pont de Nemours and Co., Inc. (ARIN) to ETS TELEPHONE COMPANY, INC. (ARIN) on 2016-02-02 19:45 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 2016-02-02)"}}