{"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":"143.55.176.0/20","resource_type":"ipv4","page":"https://rirtracker.com/ip/143.55.176.0-143.55.191.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2020-07-08)"},"current_holder":{"rir":"ARIN","org":"Rocket Limited Partnership","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":42789,"date":"2026-02-10T23:01:53Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Rocket, LLC","recipient_org":"Rocket Limited Partnership","range":"143.55.176.0/20","log":"ARIN"},{"id":39180,"date":"2025-03-03T19:20:07Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Quicken Loans, LLC","recipient_org":"Rocket, LLC","range":"143.55.176.0/20","log":"ARIN"},{"id":20990,"date":"2020-07-08T20:44:08Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Fashion Institute of Technology","recipient_org":"Quicken Loans, LLC","range":"143.55.176.0/20","log":"ARIN"}],"events":[{"event_id":"84f5d2f3c5968baf","registry":"ARIN","report_date":"2026-02-10","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"143.55.176.0/20","start":"143.55.176.0","end":"143.55.191.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Rocket, LLC","recipient_organization":"Rocket Limited Partnership","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:26+00:00","page":"https://rirtracker.com/ip/143.55.176.0-143.55.191.255/#e-84f5d2f3c5968baf","report_page":"https://rirtracker.com/arin/reports/2026-02-10/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/143.55.176.0-143.55.191.255.json","observed":"Merger/acquisition: Rocket, LLC (ARIN) to Rocket Limited Partnership (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Rocket, LLC (ARIN) to Rocket Limited Partnership (ARIN) on 2026-02-10 23:01 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 2026-02-10 23:01 UTC, Rocket, LLC (ARIN) to Rocket Limited Partnership (ARIN); resources moved: 143.55.176.0/20"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260209","retrieved_at":"2026-10-09T18:56:21+00:00","summary":"ARIN delegated statistics 2026-02-09 (produced 2026-02-09T14:00:51+00:00), before the report: allocated (dated 2020-07-08)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260211","retrieved_at":"2026-10-09T18:56:28+00:00","summary":"ARIN delegated statistics 2026-02-11 (produced 2026-02-11T14:00:50+00:00), after the report: allocated (dated 2020-07-08)"}]},{"event_id":"024b679ac7c913fb","registry":"ARIN","report_date":"2025-03-03","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"143.55.176.0/20","start":"143.55.176.0","end":"143.55.191.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Quicken Loans, LLC","recipient_organization":"Rocket, LLC","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:20+00:00","page":"https://rirtracker.com/ip/143.55.176.0-143.55.191.255/#e-024b679ac7c913fb","report_page":"https://rirtracker.com/arin/reports/2025-03-03/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/143.55.176.0-143.55.191.255.json","observed":"Merger/acquisition: Quicken Loans, LLC (ARIN) to Rocket, LLC (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Quicken Loans, LLC (ARIN) to Rocket, LLC (ARIN) on 2025-03-03 19:20 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 2025-03-03 19:20 UTC, Quicken Loans, LLC (ARIN) to Rocket, LLC (ARIN); resources moved: 143.55.176.0/20"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20250302.gz","retrieved_at":"2026-10-12T23:55:41+00:00","summary":"ARIN delegated statistics 2025-03-02 (produced 2025-03-02T14:01:06+00:00), before the report: allocated (dated 2020-07-08)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20250304.gz","retrieved_at":"2026-10-12T23:55:46+00:00","summary":"ARIN delegated statistics 2025-03-04 (produced 2025-03-04T14:01:06+00:00), after the report: allocated (dated 2020-07-08)"}]},{"event_id":"16d1b45ba8367878","registry":"ARIN","report_date":"2020-07-08","source":"arin_issued","raw_action":"ADD","raw_line":"Add 143.55.176.0-143.55.191.255","resource_type":"ipv4","resource":"143.55.176.0/20","start":"143.55.176.0","end":"143.55.191.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-ARIN transfer","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Fashion Institute of Technology","recipient_organization":"Quicken Loans, LLC","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:52:53+00:00","page":"https://rirtracker.com/ip/143.55.176.0-143.55.191.255/#e-16d1b45ba8367878","report_page":"https://rirtracker.com/arin/reports/2020-07-08/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/143.55.176.0-143.55.191.255.json","piece_of":{"resource":"143.55.0.0/16","page":"https://rirtracker.com/ip/143.55.0.0-143.55.255.255/"},"explanation":"ARIN's transfer log records a transfer from Fashion Institute of Technology (ARIN) to Quicken Loans, LLC (ARIN) on 2020-07-08 20:44 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/2020-July/004226.html","retrieved_at":"2026-10-12T18:40:58+00:00","summary":"ARIN-Issued report for 2020-07-08: \"Add 143.55.176.0-143.55.191.255\""},{"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 2020-07-08 20:44 UTC, Fashion Institute of Technology (ARIN) to Quicken Loans, LLC (ARIN); resources moved: 143.55.176.0/20"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2020/delegated-arin-extended-20200707.gz","retrieved_at":"2026-10-12T22:26:53+00:00","summary":"ARIN delegated statistics 2020-07-07 (produced 2020-07-07T14:00:13+00:00), before the report: assigned (dated 1990-08-28)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2020/delegated-arin-extended-20200709.gz","retrieved_at":"2026-10-12T22:26:58+00:00","summary":"ARIN delegated statistics 2020-07-09 (produced 2020-07-09T14:00:13+00:00), after the report: assigned (dated 2020-07-08)"}]}],"classification_history":{"84f5d2f3c5968baf":[{"raw_change_id":575388,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:26+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Rocket, LLC (ARIN) to Rocket Limited Partnership (ARIN) on 2026-02-10 23:01 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."}],"024b679ac7c913fb":[{"raw_change_id":573057,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:20+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Quicken Loans, LLC (ARIN) to Rocket, LLC (ARIN) on 2025-03-03 19:20 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."}],"16d1b45ba8367878":[{"raw_change_id":166334,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T03:48:53+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Fashion Institute of Technology (ARIN) to Quicken Loans, LLC (ARIN) on 2020-07-08 20:44 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":166334,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:06:50+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Fashion Institute of Technology (ARIN) to Quicken Loans, LLC (ARIN) on 2020-07-08 20:44 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":166334,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:49:35+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Fashion Institute of Technology (ARIN) to Quicken Loans, LLC (ARIN) on 2020-07-08 20:44 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":166334,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:52:53+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from Fashion Institute of Technology (ARIN) to Quicken Loans, LLC (ARIN) on 2020-07-08 20:44 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 2020-07-08)"}}