{"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":"216.153.28.0/22","resource_type":"ipv4","page":"https://rirtracker.com/ip/216.153.28.0-216.153.31.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2024-01-05)"},"current_holder":{"rir":"ARIN","org":"Audacy","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":34053,"date":"2024-01-05T20:14:40Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Sicur1, LLC","recipient_org":"Audacy","range":"216.153.28.0/22","log":"ARIN"},{"id":29357,"date":"2022-10-07T15:51:25Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"The Nexus Group, Inc.","recipient_org":"Sicur1, LLC","range":"216.153.28.0/22","log":"ARIN"}],"events":[{"event_id":"b025e944c91993f5","registry":"ARIN","report_date":"2024-01-05","source":"arin_issued","raw_action":"ADD","raw_line":"Add 216.153.28.0-216.153.31.255","resource_type":"ipv4","resource":"216.153.28.0/22","start":"216.153.28.0","end":"216.153.31.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-ARIN transfer","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Sicur1, LLC","recipient_organization":"Audacy","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:53:56+00:00","page":"https://rirtracker.com/ip/216.153.28.0-216.153.31.255/#e-b025e944c91993f5","report_page":"https://rirtracker.com/arin/reports/2024-01-05/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/216.153.28.0-216.153.31.255.json","explanation":"ARIN's transfer log records a transfer from Sicur1, LLC (ARIN) to Audacy (ARIN) on 2024-01-05 20:14 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/2024-January/005502.html","retrieved_at":"2026-10-12T18:42:27+00:00","summary":"ARIN-Issued report for 2024-01-05: \"Add 216.153.28.0-216.153.31.255\""},{"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 2024-01-05 20:14 UTC, Sicur1, LLC (ARIN) to Audacy (ARIN); resources moved: 216.153.28.0/22"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20240104.gz","retrieved_at":"2026-10-12T23:32:59+00:00","summary":"ARIN delegated statistics 2024-01-04 (produced 2024-01-04T14:00:34+00:00), before the report: allocated (dated 2022-10-07)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20240106.gz","retrieved_at":"2026-10-12T23:33:04+00:00","summary":"ARIN delegated statistics 2024-01-06 (produced 2024-01-06T14:00:34+00:00), after the report: allocated (dated 2024-01-05)"}]},{"event_id":"ac3fa09ccc464549","registry":"ARIN","report_date":"2022-10-07","source":"arin_issued","raw_action":"ADD","raw_line":"Add 216.153.28.0-216.153.31.255","resource_type":"ipv4","resource":"216.153.28.0/22","start":"216.153.28.0","end":"216.153.31.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-ARIN transfer","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"The Nexus Group, Inc.","recipient_organization":"Sicur1, LLC","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:53:30+00:00","page":"https://rirtracker.com/ip/216.153.28.0-216.153.31.255/#e-ac3fa09ccc464549","report_page":"https://rirtracker.com/arin/reports/2022-10-07/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/216.153.28.0-216.153.31.255.json","piece_of":{"resource":"216.153.0.0/17","page":"https://rirtracker.com/ip/216.153.0.0-216.153.127.255/"},"explanation":"ARIN's transfer log records a transfer from The Nexus Group, Inc. (ARIN) to Sicur1, LLC (ARIN) on 2022-10-07 15:51 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/2022-October/005047.html","retrieved_at":"2026-10-12T18:41:55+00:00","summary":"ARIN-Issued report for 2022-10-07: \"Add 216.153.28.0-216.153.31.255\""},{"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 2022-10-07 15:51 UTC, The Nexus Group, Inc. (ARIN) to Sicur1, LLC (ARIN); resources moved: 216.153.28.0/22"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2022/delegated-arin-extended-20221006.gz","retrieved_at":"2026-10-12T23:08:50+00:00","summary":"ARIN delegated statistics 2022-10-06 (produced 2022-10-06T13:00:10+00:00), before the report: allocated (dated 1998-12-09)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2022/delegated-arin-extended-20221008.gz","retrieved_at":"2026-10-12T23:09:05+00:00","summary":"ARIN delegated statistics 2022-10-08 (produced 2022-10-08T13:00:11+00:00), after the report: allocated (dated 2022-10-07)"}]}],"classification_history":{"b025e944c91993f5":[{"raw_change_id":184929,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T04:00:49+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Sicur1, LLC (ARIN) to Audacy (ARIN) on 2024-01-05 20:14 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":184929,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:07:37+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Sicur1, LLC (ARIN) to Audacy (ARIN) on 2024-01-05 20:14 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":184929,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:50:28+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Sicur1, LLC (ARIN) to Audacy (ARIN) on 2024-01-05 20:14 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":184929,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:53:56+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from Sicur1, LLC (ARIN) to Audacy (ARIN) on 2024-01-05 20:14 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."}],"ac3fa09ccc464549":[{"raw_change_id":178523,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T03:57:09+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from The Nexus Group, Inc. (ARIN) to Sicur1, LLC (ARIN) on 2022-10-07 15:51 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":178523,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:07:18+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from The Nexus Group, Inc. (ARIN) to Sicur1, LLC (ARIN) on 2022-10-07 15:51 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":178523,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:50:07+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from The Nexus Group, Inc. (ARIN) to Sicur1, LLC (ARIN) on 2022-10-07 15:51 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":178523,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:53:30+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from The Nexus Group, Inc. (ARIN) to Sicur1, LLC (ARIN) on 2022-10-07 15:51 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 2024-01-05)"}}