{"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":"139.144.0.0/16","resource_type":"ipv4","page":"https://rirtracker.com/ip/139.144.0.0-139.144.255.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2021-06-15)"},"current_holder":{"rir":"ARIN","org":"Akamai Technologies, Inc.","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":29892,"date":"2022-12-13T19:47:13Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Linode","recipient_org":"Akamai Technologies, Inc.","range":"139.144.0.0/16","log":"ARIN"},{"id":24857,"date":"2021-06-15T19:16:33Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Advanced Technology Center","recipient_org":"Linode","range":"139.144.0.0/16","log":"ARIN"},{"id":21793,"date":"2020-10-27T20:36:50Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"eWorkplace Solutions, Inc.","recipient_org":"Advanced Technology Center","range":"139.144.0.0/16","log":"ARIN"}],"events":[{"event_id":"f891afdcd8f78be7","registry":"ARIN","report_date":"2022-12-13","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"139.144.0.0/16","start":"139.144.0.0","end":"139.144.255.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Linode","recipient_organization":"Akamai Technologies, Inc.","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:05+00:00","page":"https://rirtracker.com/ip/139.144.0.0-139.144.255.255/#e-f891afdcd8f78be7","report_page":"https://rirtracker.com/arin/reports/2022-12-13/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/139.144.0.0-139.144.255.255.json","observed":"Merger/acquisition: Linode (ARIN) to Akamai Technologies, Inc. (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Linode (ARIN) to Akamai Technologies, Inc. (ARIN) on 2022-12-13 19:47 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 2022-12-13 19:47 UTC, Linode (ARIN) to Akamai Technologies, Inc. (ARIN); resources moved: 139.144.0.0/16"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2022/delegated-arin-extended-20221212.gz","retrieved_at":"2026-10-12T23:12:26+00:00","summary":"ARIN delegated statistics 2022-12-12 (produced 2022-12-12T14:00:11+00:00), before the report: allocated (dated 2021-06-15)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2022/delegated-arin-extended-20221214.gz","retrieved_at":"2026-10-12T23:12:31+00:00","summary":"ARIN delegated statistics 2022-12-14 (produced 2022-12-14T14:00:10+00:00), after the report: allocated (dated 2021-06-15)"}]},{"event_id":"5031566360d5391d","registry":"ARIN","report_date":"2021-06-15","source":"arin_issued","raw_action":"ADD","raw_line":"Add 139.144.0.0-139.144.255.255","resource_type":"ipv4","resource":"139.144.0.0/16","start":"139.144.0.0","end":"139.144.255.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-ARIN transfer","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Advanced Technology Center","recipient_organization":"Linode","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:53:10+00:00","page":"https://rirtracker.com/ip/139.144.0.0-139.144.255.255/#e-5031566360d5391d","report_page":"https://rirtracker.com/arin/reports/2021-06-15/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/139.144.0.0-139.144.255.255.json","explanation":"ARIN's transfer log records a transfer from Advanced Technology Center (ARIN) to Linode (ARIN) on 2021-06-15 19:16 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/2021-June/004568.html","retrieved_at":"2026-10-12T18:41:21+00:00","summary":"ARIN-Issued report for 2021-06-15: \"Add 139.144.0.0-139.144.255.255\""},{"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 2021-06-15 19:16 UTC, Advanced Technology Center (ARIN) to Linode (ARIN); resources moved: 139.144.0.0/16"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2021/delegated-arin-extended-20210614.gz","retrieved_at":"2026-10-12T22:44:13+00:00","summary":"ARIN delegated statistics 2021-06-14 (produced 2021-06-14T14:00:13+00:00), before the report: assigned (dated 1990-03-15)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2021/delegated-arin-extended-20210616.gz","retrieved_at":"2026-10-12T22:44:18+00:00","summary":"ARIN delegated statistics 2021-06-16 (produced 2021-06-16T14:00:13+00:00), after the report: allocated (dated 2021-06-15)"}]},{"event_id":"dfa7a238426d6f4c","registry":"ARIN","report_date":"2020-10-27","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"139.144.0.0/16","start":"139.144.0.0","end":"139.144.255.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"eWorkplace Solutions, Inc.","recipient_organization":"Advanced Technology Center","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:51+00:00","page":"https://rirtracker.com/ip/139.144.0.0-139.144.255.255/#e-dfa7a238426d6f4c","report_page":"https://rirtracker.com/arin/reports/2020-10-27/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/139.144.0.0-139.144.255.255.json","observed":"Merger/acquisition: eWorkplace Solutions, Inc. (ARIN) to Advanced Technology Center (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from eWorkplace Solutions, Inc. (ARIN) to Advanced Technology Center (ARIN) on 2020-10-27 20:36 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 2020-10-27 20:36 UTC, eWorkplace Solutions, Inc. (ARIN) to Advanced Technology Center (ARIN); resources moved: 139.144.0.0/16"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2020/delegated-arin-extended-20201026.gz","retrieved_at":"2026-10-12T22:32:29+00:00","summary":"ARIN delegated statistics 2020-10-26 (produced 2020-10-26T14:00:13+00:00), before the report: assigned (dated 1990-03-15)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2020/delegated-arin-extended-20201028.gz","retrieved_at":"2026-10-12T22:32:34+00:00","summary":"ARIN delegated statistics 2020-10-28 (produced 2020-10-28T14:00:13+00:00), after the report: assigned (dated 1990-03-15)"}]}],"classification_history":{"f891afdcd8f78be7":[{"raw_change_id":566864,"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 Linode (ARIN) to Akamai Technologies, Inc. (ARIN) on 2022-12-13 19:47 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."}],"5031566360d5391d":[{"raw_change_id":171673,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T03:52:41+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Advanced Technology Center (ARIN) to Linode (ARIN) on 2021-06-15 19:16 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":171673,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:07:03+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Advanced Technology Center (ARIN) to Linode (ARIN) on 2021-06-15 19:16 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":171673,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:49:49+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Advanced Technology Center (ARIN) to Linode (ARIN) on 2021-06-15 19:16 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":171673,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:53:10+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from Advanced Technology Center (ARIN) to Linode (ARIN) on 2021-06-15 19:16 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."}],"dfa7a238426d6f4c":[{"raw_change_id":561176,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:51+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from eWorkplace Solutions, Inc. (ARIN) to Advanced Technology Center (ARIN) on 2020-10-27 20:36 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 2021-06-15)"}}