{"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":"205.220.0.0/17","resource_type":"ipv4","page":"https://rirtracker.com/ip/205.220.0.0-205.220.127.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2024-11-27)"},"current_holder":{"rir":"ARIN","org":"ZSCALER, INC.","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":37383,"date":"2024-11-27T16:41:45Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Hyatt Corporation","recipient_org":"ZSCALER, INC.","range":"205.220.0.0/17","log":"ARIN"},{"id":8469,"date":"2016-12-27T19:22:48Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Regency Systems Solutions","recipient_org":"Hyatt Corporation","range":"205.220.0.0/17","log":"ARIN"}],"events":[{"event_id":"148748b6976d53d8","registry":"ARIN","report_date":"2024-11-27","source":"arin_issued","raw_action":"ADD","raw_line":"Add 205.220.0.0-205.220.127.255","resource_type":"ipv4","resource":"205.220.0.0/17","start":"205.220.0.0","end":"205.220.127.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-ARIN transfer","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Hyatt Corporation","recipient_organization":"ZSCALER, INC.","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:16+00:00","page":"https://rirtracker.com/ip/205.220.0.0-205.220.127.255/#e-148748b6976d53d8","report_page":"https://rirtracker.com/arin/reports/2024-11-27/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/205.220.0.0-205.220.127.255.json","explanation":"ARIN's transfer log records a transfer from Hyatt Corporation (ARIN) to ZSCALER, INC. (ARIN) on 2024-11-27 16:41 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-November/005828.html","retrieved_at":"2026-10-12T18:42:48+00:00","summary":"ARIN-Issued report for 2024-11-27: \"Add 205.220.0.0-205.220.127.255\""},{"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 2024-11-27 16:41 UTC, Hyatt Corporation (ARIN) to ZSCALER, INC. (ARIN); resources moved: 205.220.0.0/17"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20241126.gz","retrieved_at":"2026-10-12T23:50:32+00:00","summary":"ARIN delegated statistics 2024-11-26 (produced 2024-11-26T14:00:54+00:00), before the report: allocated (dated 1995-04-12)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20241128.gz","retrieved_at":"2026-10-12T23:50:37+00:00","summary":"ARIN delegated statistics 2024-11-28 (produced 2024-11-28T14:01:07+00:00), after the report: allocated (dated 2024-11-27)"}]},{"event_id":"8fd3f88b63f6485d","registry":"ARIN","report_date":"2016-12-27","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"205.220.0.0/17","start":"205.220.0.0","end":"205.220.127.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Regency Systems Solutions","recipient_organization":"Hyatt Corporation","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/205.220.0.0-205.220.127.255/#e-8fd3f88b63f6485d","report_page":"https://rirtracker.com/arin/reports/2016-12-27/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/205.220.0.0-205.220.127.255.json","observed":"Merger/acquisition: Regency Systems Solutions (ARIN) to Hyatt Corporation (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Regency Systems Solutions (ARIN) to Hyatt Corporation (ARIN) on 2016-12-27 19:22 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 2016-12-27 19:22 UTC, Regency Systems Solutions (ARIN) to Hyatt Corporation (ARIN); resources moved: 205.220.0.0/17"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2016/delegated-arin-extended-20161226.gz","retrieved_at":"2026-10-12T21:21:24+00:00","summary":"ARIN delegated statistics 2016-12-26 (produced 2016-12-26T06:09:47+00:00), before the report: assigned (dated 1995-04-12)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2016/delegated-arin-extended-20161228.gz","retrieved_at":"2026-10-12T21:21:29+00:00","summary":"ARIN delegated statistics 2016-12-28 (produced 2016-12-28T06:09:51+00:00), after the report: assigned (dated 1995-04-12)"}]}],"classification_history":{"148748b6976d53d8":[{"raw_change_id":190594,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T04:04:07+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Hyatt Corporation (ARIN) to ZSCALER, INC. (ARIN) on 2024-11-27 16:41 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":190594,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:07:52+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Hyatt Corporation (ARIN) to ZSCALER, INC. (ARIN) on 2024-11-27 16:41 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":190594,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:50:45+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Hyatt Corporation (ARIN) to ZSCALER, INC. (ARIN) on 2024-11-27 16:41 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":190594,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:16+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from Hyatt Corporation (ARIN) to ZSCALER, INC. (ARIN) on 2024-11-27 16:41 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."}],"8fd3f88b63f6485d":[{"raw_change_id":551266,"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 Regency Systems Solutions (ARIN) to Hyatt Corporation (ARIN) on 2016-12-27 19:22 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 2024-11-27)"}}