{"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":"147.139.0.0/16","resource_type":"ipv4","page":"https://rirtracker.com/ip/147.139.0.0-147.139.255.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2016-12-19)"},"current_holder":{"rir":"ARIN","org":"Alibaba.com LLC","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":8420,"date":"2016-12-19T17:59:23Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Sonus Networks Inc","recipient_org":"Alibaba.com LLC","range":"147.139.0.0/16","log":"ARIN"}],"events":[{"event_id":"ed8c4e6aed0b73ac","registry":"ARIN","report_date":"2016-12-19","source":"arin_issued","raw_action":"ADD","raw_line":"Add 147.139.0.0-147.139.255.255","resource_type":"ipv4","resource":"147.139.0.0/16","start":"147.139.0.0","end":"147.139.255.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-ARIN transfer","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Sonus Networks Inc","recipient_organization":"Alibaba.com LLC","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:51:40+00:00","page":"https://rirtracker.com/ip/147.139.0.0-147.139.255.255/#e-ed8c4e6aed0b73ac","report_page":"https://rirtracker.com/arin/reports/2016-12-19/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/147.139.0.0-147.139.255.255.json","explanation":"ARIN's transfer log records a transfer from Sonus Networks Inc (ARIN) to Alibaba.com LLC (ARIN) on 2016-12-19 17:59 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-December/002930.html","retrieved_at":"2026-10-12T18:39:27+00:00","summary":"ARIN-Issued report for 2016-12-19: \"Add 147.139.0.0-147.139.255.255\""},{"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 2016-12-19 17:59 UTC, Sonus Networks Inc (ARIN) to Alibaba.com LLC (ARIN); resources moved: 147.139.0.0/16"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2016/delegated-arin-extended-20161218.gz","retrieved_at":"2026-10-12T21:20:57+00:00","summary":"ARIN delegated statistics 2016-12-18 (produced 2016-12-18T06:10:52+00:00), before the report: assigned (dated 1991-04-09)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2016/delegated-arin-extended-20161220.gz","retrieved_at":"2026-10-12T21:21:02+00:00","summary":"ARIN delegated statistics 2016-12-20 (produced 2016-12-20T06:09:08+00:00), after the report: assigned (dated 2016-12-19)"}]}],"classification_history":{"ed8c4e6aed0b73ac":[{"raw_change_id":147047,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T03:36:40+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Sonus Networks Inc (ARIN) to Alibaba.com LLC (ARIN) on 2016-12-19 17:59 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":147047,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:05:55+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Sonus Networks Inc (ARIN) to Alibaba.com LLC (ARIN) on 2016-12-19 17:59 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":147047,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:48:34+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Sonus Networks Inc (ARIN) to Alibaba.com LLC (ARIN) on 2016-12-19 17:59 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":147047,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:51:40+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from Sonus Networks Inc (ARIN) to Alibaba.com LLC (ARIN) on 2016-12-19 17:59 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 2016-12-19)"}}