{"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":"147.81.0.0/16","resource_type":"ipv4","page":"https://rirtracker.com/ip/147.81.0.0-147.81.255.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2023-05-10)"},"current_holder":{"rir":"ARIN","org":"Hawaiian Telcom Services Company, Inc.","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":31907,"date":"2023-05-10T17:25:14Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"SAIC","recipient_org":"Hawaiian Telcom Services Company, Inc.","range":"147.81.0.0/16","log":"ARIN"},{"id":21181,"date":"2020-08-04T13:09:33Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"TASC","recipient_org":"SAIC","range":"147.81.0.0/16","log":"ARIN"}],"events":[{"event_id":"03376b8262238e2a","registry":"ARIN","report_date":"2023-05-10","source":"arin_issued","raw_action":"ADD","raw_line":"Add 147.81.0.0-147.81.255.255","resource_type":"ipv4","resource":"147.81.0.0/16","start":"147.81.0.0","end":"147.81.255.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-ARIN transfer","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"SAIC","recipient_organization":"Hawaiian Telcom Services Company, Inc.","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:53:42+00:00","page":"https://rirtracker.com/ip/147.81.0.0-147.81.255.255/#e-03376b8262238e2a","report_page":"https://rirtracker.com/arin/reports/2023-05-10/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/147.81.0.0-147.81.255.255.json","explanation":"ARIN's transfer log records a transfer from SAIC (ARIN) to Hawaiian Telcom Services Company, Inc. (ARIN) on 2023-05-10 17:25 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/2023-May/005262.html","retrieved_at":"2026-10-12T18:42:10+00:00","summary":"ARIN-Issued report for 2023-05-10: \"Add 147.81.0.0-147.81.255.255\""},{"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 2023-05-10 17:25 UTC, SAIC (ARIN) to Hawaiian Telcom Services Company, Inc. (ARIN); resources moved: 147.81.0.0/16"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2023/delegated-arin-extended-20230509.gz","retrieved_at":"2026-10-12T23:20:20+00:00","summary":"ARIN delegated statistics 2023-05-09 (produced 2023-05-09T13:00:11+00:00), before the report: allocated (dated 1991-07-16)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2023/delegated-arin-extended-20230511.gz","retrieved_at":"2026-10-12T23:20:25+00:00","summary":"ARIN delegated statistics 2023-05-11 (produced 2023-05-11T13:00:10+00:00), after the report: allocated (dated 2023-05-10)"}]},{"event_id":"aea8c54fd2943e2e","registry":"ARIN","report_date":"2020-08-04","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"147.81.0.0/16","start":"147.81.0.0","end":"147.81.255.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"TASC","recipient_organization":"SAIC","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:50+00:00","page":"https://rirtracker.com/ip/147.81.0.0-147.81.255.255/#e-aea8c54fd2943e2e","report_page":"https://rirtracker.com/arin/reports/2020-08-04/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/147.81.0.0-147.81.255.255.json","observed":"Merger/acquisition: TASC (ARIN) to SAIC (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from TASC (ARIN) to SAIC (ARIN) on 2020-08-04 13:09 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 2020-08-04 13:09 UTC, TASC (ARIN) to SAIC (ARIN); resources moved: 147.81.0.0/16"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2020/delegated-arin-extended-20200803.gz","retrieved_at":"2026-10-12T22:28:11+00:00","summary":"ARIN delegated statistics 2020-08-03 (produced 2020-08-03T14:00:14+00:00), before the report: assigned (dated 1991-07-16)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2020/delegated-arin-extended-20200805.gz","retrieved_at":"2026-10-12T22:28:16+00:00","summary":"ARIN delegated statistics 2020-08-05 (produced 2020-08-05T14:00:13+00:00), after the report: assigned (dated 1991-07-16)"}]}],"classification_history":{"03376b8262238e2a":[{"raw_change_id":181600,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T03:59:06+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from SAIC (ARIN) to Hawaiian Telcom Services Company, Inc. (ARIN) on 2023-05-10 17:25 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":181600,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:07:27+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from SAIC (ARIN) to Hawaiian Telcom Services Company, Inc. (ARIN) on 2023-05-10 17:25 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":181600,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:50:17+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from SAIC (ARIN) to Hawaiian Telcom Services Company, Inc. (ARIN) on 2023-05-10 17:25 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":181600,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:53:42+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from SAIC (ARIN) to Hawaiian Telcom Services Company, Inc. (ARIN) on 2023-05-10 17:25 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."}],"aea8c54fd2943e2e":[{"raw_change_id":560769,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:50+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from TASC (ARIN) to SAIC (ARIN) on 2020-08-04 13:09 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 2023-05-10)"}}