{"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":"192.147.250.0/24","resource_type":"ipv4","page":"https://rirtracker.com/ip/192.147.250.0-192.147.250.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2020-07-27)"},"current_holder":{"rir":"ARIN","org":"Maryland Live! Casino","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":21153,"date":"2020-07-27T18:26:03Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Rogue Wave Software","recipient_org":"Maryland Live! Casino","range":"192.147.250.0/24","log":"ARIN"},{"id":20734,"date":"2020-05-18T19:32:04Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Visual Numerics, INC.","recipient_org":"Rogue Wave Software","range":"192.147.250.0/24","log":"ARIN"}],"events":[{"event_id":"bb11793f457701db","registry":"ARIN","report_date":"2020-07-27","source":"arin_issued","raw_action":"ADD","raw_line":"Add 192.147.250.0-192.147.250.255","resource_type":"ipv4","resource":"192.147.250.0/24","start":"192.147.250.0","end":"192.147.250.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-ARIN transfer","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Rogue Wave Software","recipient_organization":"Maryland Live! Casino","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:52:54+00:00","page":"https://rirtracker.com/ip/192.147.250.0-192.147.250.255/#e-bb11793f457701db","report_page":"https://rirtracker.com/arin/reports/2020-07-27/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/192.147.250.0-192.147.250.255.json","explanation":"ARIN's transfer log records a transfer from Rogue Wave Software (ARIN) to Maryland Live! Casino (ARIN) on 2020-07-27 18:26 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/004245.html","retrieved_at":"2026-10-12T18:40:58+00:00","summary":"ARIN-Issued report for 2020-07-27: \"Add 192.147.250.0-192.147.250.255\""},{"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 2020-07-27 18:26 UTC, Rogue Wave Software (ARIN) to Maryland Live! Casino (ARIN); resources moved: 192.147.250.0/24"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2020/delegated-arin-extended-20200726.gz","retrieved_at":"2026-10-12T22:27:42+00:00","summary":"ARIN delegated statistics 2020-07-26 (produced 2020-07-26T14:00:13+00:00), before the report: assigned (dated 1992-02-25)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2020/delegated-arin-extended-20200728.gz","retrieved_at":"2026-10-12T22:27:46+00:00","summary":"ARIN delegated statistics 2020-07-28 (produced 2020-07-28T14:00:12+00:00), after the report: allocated (dated 2020-07-27)"}]},{"event_id":"887a665c5f2e03b8","registry":"ARIN","report_date":"2020-05-18","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"192.147.250.0/24","start":"192.147.250.0","end":"192.147.250.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Visual Numerics, INC.","recipient_organization":"Rogue Wave Software","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:50+00:00","page":"https://rirtracker.com/ip/192.147.250.0-192.147.250.255/#e-887a665c5f2e03b8","report_page":"https://rirtracker.com/arin/reports/2020-05-18/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/192.147.250.0-192.147.250.255.json","observed":"Merger/acquisition: Visual Numerics, INC. (ARIN) to Rogue Wave Software (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Visual Numerics, INC. (ARIN) to Rogue Wave Software (ARIN) on 2020-05-18 19:32 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 2020-05-18 19:32 UTC, Visual Numerics, INC. (ARIN) to Rogue Wave Software (ARIN); resources moved: 192.147.250.0/24"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2020/delegated-arin-extended-20200517.gz","retrieved_at":"2026-10-12T22:24:11+00:00","summary":"ARIN delegated statistics 2020-05-17 (produced 2020-05-17T14:00:12+00:00), before the report: assigned (dated 1992-02-25)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2020/delegated-arin-extended-20200519.gz","retrieved_at":"2026-10-12T22:24:16+00:00","summary":"ARIN delegated statistics 2020-05-19 (produced 2020-05-19T14:00:14+00:00), after the report: assigned (dated 1992-02-25)"}]}],"classification_history":{"bb11793f457701db":[{"raw_change_id":166715,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T03:49:08+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Rogue Wave Software (ARIN) to Maryland Live! Casino (ARIN) on 2020-07-27 18:26 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":166715,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:06:51+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Rogue Wave Software (ARIN) to Maryland Live! Casino (ARIN) on 2020-07-27 18:26 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":166715,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:49:36+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Rogue Wave Software (ARIN) to Maryland Live! Casino (ARIN) on 2020-07-27 18:26 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":166715,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:52:54+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from Rogue Wave Software (ARIN) to Maryland Live! Casino (ARIN) on 2020-07-27 18:26 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."}],"887a665c5f2e03b8":[{"raw_change_id":560518,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:50+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Visual Numerics, INC. (ARIN) to Rogue Wave Software (ARIN) on 2020-05-18 19:32 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 2020-07-27)"}}