{"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":"146.168.0.0/16","resource_type":"ipv4","page":"https://rirtracker.com/ip/146.168.0.0-146.168.255.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2017-12-27)"},"current_holder":{"rir":"ARIN","org":"Atlantic Broadband Finance, LLC","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":11706,"date":"2017-12-27T12:21:33Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Alliant Techsystems Operations LLC","recipient_org":"Atlantic Broadband Finance, LLC","range":"146.168.0.0/16","log":"ARIN"},{"id":8208,"date":"2016-11-08T17:40:56Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Alliant Techsystems, Inc.","recipient_org":"Alliant Techsystems Operations LLC","range":"146.168.0.0/16","log":"ARIN"}],"events":[{"event_id":"0c9441d2bf5dd2b1","registry":"ARIN","report_date":"2017-12-27","source":"arin_issued","raw_action":"ADD","raw_line":"Add 146.168.0.0-146.168.255.255","resource_type":"ipv4","resource":"146.168.0.0/16","start":"146.168.0.0","end":"146.168.255.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-ARIN transfer","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Alliant Techsystems Operations LLC","recipient_organization":"Atlantic Broadband Finance, LLC","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:52:02+00:00","page":"https://rirtracker.com/ip/146.168.0.0-146.168.255.255/#e-0c9441d2bf5dd2b1","report_page":"https://rirtracker.com/arin/reports/2017-12-27/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/146.168.0.0-146.168.255.255.json","explanation":"ARIN's transfer log records a transfer from Alliant Techsystems Operations LLC (ARIN) to Atlantic Broadband Finance, LLC (ARIN) on 2017-12-27 12:21 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/2017-December/003304.html","retrieved_at":"2026-10-12T18:39:53+00:00","summary":"ARIN-Issued report for 2017-12-27: \"Add 146.168.0.0-146.168.255.255\""},{"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 2017-12-27 12:21 UTC, Alliant Techsystems Operations LLC (ARIN) to Atlantic Broadband Finance, LLC (ARIN); resources moved: 146.168.0.0/16"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20171226.gz","retrieved_at":"2026-10-12T21:39:21+00:00","summary":"ARIN delegated statistics 2017-12-26 (produced 2017-12-26T06:09:44+00:00), before the report: assigned (dated 1991-02-21)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20171228.gz","retrieved_at":"2026-10-12T21:39:26+00:00","summary":"ARIN delegated statistics 2017-12-28 (produced 2017-12-28T06:09:22+00:00), after the report: allocated (dated 2017-12-27)"}]},{"event_id":"fc271ec1f208b23c","registry":"ARIN","report_date":"2016-11-08","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"146.168.0.0/16","start":"146.168.0.0","end":"146.168.255.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Alliant Techsystems, Inc.","recipient_organization":"Alliant Techsystems Operations LLC","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:27+00:00","page":"https://rirtracker.com/ip/146.168.0.0-146.168.255.255/#e-fc271ec1f208b23c","report_page":"https://rirtracker.com/arin/reports/2016-11-08/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/146.168.0.0-146.168.255.255.json","observed":"Merger/acquisition: Alliant Techsystems, Inc. (ARIN) to Alliant Techsystems Operations LLC (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Alliant Techsystems, Inc. (ARIN) to Alliant Techsystems Operations LLC (ARIN) on 2016-11-08 17:40 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 2016-11-08 17:40 UTC, Alliant Techsystems, Inc. (ARIN) to Alliant Techsystems Operations LLC (ARIN); resources moved: 146.168.0.0/16"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2016/delegated-arin-extended-20161107.gz","retrieved_at":"2026-10-12T21:18:58+00:00","summary":"ARIN delegated statistics 2016-11-07 (produced 2016-11-07T06:08:47+00:00), before the report: assigned (dated 1991-02-21)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2016/delegated-arin-extended-20161109.gz","retrieved_at":"2026-10-12T21:19:04+00:00","summary":"ARIN delegated statistics 2016-11-09 (produced 2016-11-09T06:09:28+00:00), after the report: assigned (dated 1991-02-21)"}]}],"classification_history":{"0c9441d2bf5dd2b1":[{"raw_change_id":152549,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T03:39:55+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Alliant Techsystems Operations LLC (ARIN) to Atlantic Broadband Finance, LLC (ARIN) on 2017-12-27 12:21 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":152549,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:06:11+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Alliant Techsystems Operations LLC (ARIN) to Atlantic Broadband Finance, LLC (ARIN) on 2017-12-27 12:21 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":152549,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:48:52+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Alliant Techsystems Operations LLC (ARIN) to Atlantic Broadband Finance, LLC (ARIN) on 2017-12-27 12:21 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":152549,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:52:02+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from Alliant Techsystems Operations LLC (ARIN) to Atlantic Broadband Finance, LLC (ARIN) on 2017-12-27 12:21 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."}],"fc271ec1f208b23c":[{"raw_change_id":551125,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:27+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Alliant Techsystems, Inc. (ARIN) to Alliant Techsystems Operations LLC (ARIN) on 2016-11-08 17:40 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 2017-12-27)"}}