{"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":"161.188.0.0/16","resource_type":"ipv4","page":"https://rirtracker.com/ip/161.188.0.0-161.188.255.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 1993-01-21), allocated (dated 2020-12-29), allocated (dated 2022-09-12)"},"current_holder":{"rir":"ARIN","org":"The Philadelphia Inquirer, LLC","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":36542,"date":"2024-08-30T16:28:21Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"ACT, Inc.","recipient_org":"Impact Asset Corp.","range":"161.188.210.0/24","log":"ARIN"},{"id":35748,"date":"2024-05-31T18:43:38Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Amazon Technologies Inc.","recipient_org":"Amazon.com, 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Inc.","range":"161.188.214.0/23","log":"ARIN"},{"id":35753,"date":"2024-05-31T18:43:38Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Amazon Technologies Inc.","recipient_org":"Amazon.com, Inc.","range":"161.188.224.0/20","log":"ARIN"},{"id":29160,"date":"2022-09-12T21:49:20Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Amazon Technologies Inc.","recipient_org":"ACT, Inc.","range":"161.188.210.0/24","log":"ARIN"},{"id":22365,"date":"2020-12-29T22:22:01Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"The Philadelphia Inquirer, LLC","recipient_org":"Amazon Technologies Inc.","range":"161.188.0.0/17","log":"ARIN"},{"id":22366,"date":"2020-12-29T22:22:01Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"The Philadelphia Inquirer, LLC","recipient_org":"Amazon Technologies Inc.","range":"161.188.128.0/18","log":"ARIN"},{"id":22367,"date":"2020-12-29T22:22:01Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"The Philadelphia Inquirer, LLC","recipient_org":"Amazon Technologies Inc.","range":"161.188.192.0/21","log":"ARIN"},{"id":22368,"date":"2020-12-29T22:22:01Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"The Philadelphia Inquirer, LLC","recipient_org":"Amazon Technologies Inc.","range":"161.188.200.0/22","log":"ARIN"},{"id":22369,"date":"2020-12-29T22:22:01Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"The Philadelphia Inquirer, LLC","recipient_org":"Amazon Technologies Inc.","range":"161.188.205.0/24","log":"ARIN"},{"id":22370,"date":"2020-12-29T22:22:01Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"The Philadelphia Inquirer, LLC","recipient_org":"Amazon Technologies 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Inc.","range":"161.188.214.0/23","log":"ARIN"},{"id":22377,"date":"2020-12-29T22:22:01Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"The Philadelphia Inquirer, LLC","recipient_org":"Amazon Technologies Inc.","range":"161.188.216.0/21","log":"ARIN"},{"id":22376,"date":"2020-12-29T22:22:01Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"The Philadelphia Inquirer, LLC","recipient_org":"Amazon Technologies Inc.","range":"161.188.224.0/20","log":"ARIN"},{"id":22375,"date":"2020-12-29T22:22:01Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"The Philadelphia Inquirer, LLC","recipient_org":"Amazon Technologies Inc.","range":"161.188.240.0/21","log":"ARIN"},{"id":22374,"date":"2020-12-29T22:22:01Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"The Philadelphia Inquirer, LLC","recipient_org":"Amazon Technologies Inc.","range":"161.188.248.0/22","log":"ARIN"},{"id":22373,"date":"2020-12-29T22:22:01Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"The Philadelphia Inquirer, LLC","recipient_org":"Amazon Technologies Inc.","range":"161.188.252.0/23","log":"ARIN"},{"id":22372,"date":"2020-12-29T22:22:01Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"The Philadelphia Inquirer, LLC","recipient_org":"Amazon Technologies Inc.","range":"161.188.254.0/24","log":"ARIN"},{"id":22207,"date":"2020-12-07T23:22:01Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Philadelphia Newspapers, Inc.","recipient_org":"The Philadelphia Inquirer, LLC","range":"161.188.0.0/16","log":"ARIN"}],"events":[{"event_id":"f0e7a7af19b2bfda","registry":"ARIN","report_date":"2020-12-07","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"161.188.0.0/16","start":"161.188.0.0","end":"161.188.255.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Philadelphia Newspapers, Inc.","recipient_organization":"The Philadelphia Inquirer, LLC","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:52+00:00","page":"https://rirtracker.com/ip/161.188.0.0-161.188.255.255/#e-f0e7a7af19b2bfda","report_page":"https://rirtracker.com/arin/reports/2020-12-07/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/161.188.0.0-161.188.255.255.json","observed":"Merger/acquisition: Philadelphia Newspapers, Inc. (ARIN) to The Philadelphia Inquirer, LLC (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Philadelphia Newspapers, Inc. (ARIN) to The Philadelphia Inquirer, LLC (ARIN) on 2020-12-07 23:22 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 2020-12-07 23:22 UTC, Philadelphia Newspapers, Inc. (ARIN) to The Philadelphia Inquirer, LLC (ARIN); resources moved: 161.188.0.0/16"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2020/delegated-arin-extended-20201206.gz","retrieved_at":"2026-10-12T22:34:39+00:00","summary":"ARIN delegated statistics 2020-12-06 (produced 2020-12-06T15:00:14+00:00), before the report: assigned (dated 1993-01-21)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2020/delegated-arin-extended-20201208.gz","retrieved_at":"2026-10-12T22:34:44+00:00","summary":"ARIN delegated statistics 2020-12-08 (produced 2020-12-08T15:00:13+00:00), after the report: assigned (dated 1993-01-21)"}]}],"classification_history":{"f0e7a7af19b2bfda":[{"raw_change_id":561451,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:52+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Philadelphia Newspapers, Inc. (ARIN) to The Philadelphia Inquirer, LLC (ARIN) on 2020-12-07 23:22 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 1993-01-21), allocated (dated 2020-12-29), allocated (dated 2022-09-12)"}}