{"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":"173.195.104.0/23","resource_type":"ipv4","page":"https://rirtracker.com/ip/173.195.104.0-173.195.105.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2019-09-03)"},"current_holder":{"rir":"ARIN","org":"24/7 Systems and Networks Inc.","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":42146,"date":"2025-12-04T14:22:15Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Vrev Ltd.","recipient_org":"24/7 Systems and Networks Inc.","range":"173.195.104.0/23","log":"ARIN"}],"events":[{"event_id":"669002a1ee9b70a9","registry":"ARIN","report_date":"2025-12-04","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"173.195.104.0/23","start":"173.195.104.0","end":"173.195.105.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Vrev Ltd.","recipient_organization":"24/7 Systems and Networks Inc.","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:25+00:00","page":"https://rirtracker.com/ip/173.195.104.0-173.195.105.255/#e-669002a1ee9b70a9","report_page":"https://rirtracker.com/arin/reports/2025-12-04/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/173.195.104.0-173.195.105.255.json","observed":"Merger/acquisition: Vrev Ltd. (ARIN) to 24/7 Systems and Networks Inc. (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Vrev Ltd. (ARIN) to 24/7 Systems and Networks Inc. (ARIN) on 2025-12-04 14:22 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 2025-12-04 14:22 UTC, Vrev Ltd. (ARIN) to 24/7 Systems and Networks Inc. (ARIN); resources moved: 173.195.104.0/23"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20251203.gz","retrieved_at":"2026-10-13T00:11:18+00:00","summary":"ARIN delegated statistics 2025-12-03 (produced 2025-12-03T14:00:48+00:00), before the report: allocated (dated 2019-09-03)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20251205.gz","retrieved_at":"2026-10-13T00:11:23+00:00","summary":"ARIN delegated statistics 2025-12-05 (produced 2025-12-05T14:00:48+00:00), after the report: allocated (dated 2019-09-03)"}]},{"event_id":"91f76b053308e319","registry":"ARIN","report_date":"2019-09-03","source":"arin_issued","raw_action":"ADD","raw_line":"Add 173.195.104.0-173.195.105.255","resource_type":"ipv4","resource":"173.195.104.0/23","start":"173.195.104.0","end":"173.195.105.255","classification":"APPARENT_REISSUANCE","classification_label":"Apparent reissuance of previously removed resource","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"Likely issued from ARIN-controlled inventory","inventory_effect_code":"ISSUED","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:52:35+00:00","page":"https://rirtracker.com/ip/173.195.104.0-173.195.105.255/#e-91f76b053308e319","report_page":"https://rirtracker.com/arin/reports/2019-09-03/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/173.195.104.0-173.195.105.255.json","explanation":"No transfer record matches. ARIN's statistics show it reserved on 2019-09-02 and allocated (dated 2019-09-03) on 2019-09-04. The tracker saw this range released from hold on 2019-08-29 (173.195.104.0-173.195.105.255), so it appears to have been issued again from ARIN's pool.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2019-September/003918.html","retrieved_at":"2026-10-12T18:40:37+00:00","summary":"ARIN-Issued report for 2019-09-03: \"Add 173.195.104.0-173.195.105.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2019/delegated-arin-extended-20190902.gz","retrieved_at":"2026-10-12T22:10:35+00:00","summary":"ARIN delegated statistics 2019-09-02 (produced 2019-09-02T14:00:16+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2019/delegated-arin-extended-20190904.gz","retrieved_at":"2026-10-12T22:10:40+00:00","summary":"ARIN delegated statistics 2019-09-04 (produced 2019-09-04T14:00:17+00:00), after the report: allocated (dated 2019-09-03)"}]},{"event_id":"a68ff8b65bf4f79c","registry":"ARIN","report_date":"2019-09-03","source":"arin_issued","raw_action":"REMOVE","raw_line":"Remove 173.195.104.0-173.195.105.255","resource_type":"ipv4","resource":"173.195.104.0/23","start":"173.195.104.0","end":"173.195.105.255","classification":"POOL_RECORD_CHANGE","classification_label":"Change to ARIN's own pool record","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"Part of the issuance reported the same day","inventory_effect_code":"PAIRED","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:52:35+00:00","page":"https://rirtracker.com/ip/173.195.104.0-173.195.105.255/#e-a68ff8b65bf4f79c","report_page":"https://rirtracker.com/arin/reports/2019-09-03/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/173.195.104.0-173.195.105.255.json","explanation":"ARIN's statistics show it reserved on 2019-09-02 and allocated (dated 2019-09-03) on 2019-09-04. ARIN removed its own pool record for this range as part of issuing it: the same report adds 173.195.104.0-173.195.105.255. The issuance is explained on that line.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2019-September/003918.html","retrieved_at":"2026-10-12T18:40:37+00:00","summary":"ARIN-Issued report for 2019-09-03: \"Remove 173.195.104.0-173.195.105.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2019/delegated-arin-extended-20190902.gz","retrieved_at":"2026-10-12T22:10:35+00:00","summary":"ARIN delegated statistics 2019-09-02 (produced 2019-09-02T14:00:16+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2019/delegated-arin-extended-20190904.gz","retrieved_at":"2026-10-12T22:10:40+00:00","summary":"ARIN delegated statistics 2019-09-04 (produced 2019-09-04T14:00:17+00:00), after the report: allocated (dated 2019-09-03)"}]},{"event_id":"4653da24584f1b49","registry":"ARIN","report_date":"2019-08-29","source":"arin_issued","raw_action":"REMOVE","raw_line":"Remove 173.195.104.0-173.195.105.255","resource_type":"ipv4","resource":"173.195.104.0/23","start":"173.195.104.0","end":"173.195.105.255","classification":"NO_MATERIAL_CHANGE","classification_label":"No substantive resource change found","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:52:35+00:00","page":"https://rirtracker.com/ip/173.195.104.0-173.195.105.255/#e-4653da24584f1b49","report_page":"https://rirtracker.com/arin/reports/2019-08-29/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/173.195.104.0-173.195.105.255.json","explanation":"ARIN-Issued lists it as \"Remove\", but ARIN's statistics show the same record before and after (reserved).","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2019-August/003913.html","retrieved_at":"2026-10-12T18:40:35+00:00","summary":"ARIN-Issued report for 2019-08-29: \"Remove 173.195.104.0-173.195.105.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2019/delegated-arin-extended-20190828.gz","retrieved_at":"2026-10-12T22:10:14+00:00","summary":"ARIN delegated statistics 2019-08-28 (produced 2019-08-28T14:00:16+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2019/delegated-arin-extended-20190830.gz","retrieved_at":"2026-10-12T22:10:27+00:00","summary":"ARIN delegated statistics 2019-08-30 (produced 2019-08-30T14:00:17+00:00), after the report: reserved"}]}],"classification_history":{"669002a1ee9b70a9":[{"raw_change_id":574916,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:25+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Vrev Ltd. (ARIN) to 24/7 Systems and Networks Inc. (ARIN) on 2025-12-04 14:22 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."}],"91f76b053308e319":[{"raw_change_id":161359,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:45:33+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2019-09-02 and allocated (dated 2019-09-03) on 2019-09-04. The tracker saw this range released from hold on 2019-08-29 (173.195.104.0-173.195.105.255), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":161359,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:06:37+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2019-09-02 and allocated (dated 2019-09-03) on 2019-09-04. The tracker saw this range released from hold on 2019-08-29 (173.195.104.0-173.195.105.255), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":161359,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:49:20+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2019-09-02 and allocated (dated 2019-09-03) on 2019-09-04. The tracker saw this range released from hold on 2019-08-29 (173.195.104.0-173.195.105.255), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":161359,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:52:35+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2019-09-02 and allocated (dated 2019-09-03) on 2019-09-04. The tracker saw this range released from hold on 2019-08-29 (173.195.104.0-173.195.105.255), so it appears to have been issued again from ARIN's pool."}],"a68ff8b65bf4f79c":[{"raw_change_id":161346,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:45:32+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2019-09-02 and allocated (dated 2019-09-03) on 2019-09-04. ARIN removed its own pool record for this range as part of issuing it: the same report adds 173.195.104.0-173.195.105.255. The issuance is explained on that line."},{"raw_change_id":161346,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:06:37+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2019-09-02 and allocated (dated 2019-09-03) on 2019-09-04. ARIN removed its own pool record for this range as part of issuing it: the same report adds 173.195.104.0-173.195.105.255. The issuance is explained on that line."},{"raw_change_id":161346,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:49:20+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2019-09-02 and allocated (dated 2019-09-03) on 2019-09-04. ARIN removed its own pool record for this range as part of issuing it: the same report adds 173.195.104.0-173.195.105.255. The issuance is explained on that line."},{"raw_change_id":161346,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:52:35+00:00","current":1,"public_explanation":"ARIN's statistics show it reserved on 2019-09-02 and allocated (dated 2019-09-03) on 2019-09-04. ARIN removed its own pool record for this range as part of issuing it: the same report adds 173.195.104.0-173.195.105.255. The issuance is explained on that line."}],"4653da24584f1b49":[{"raw_change_id":161162,"classification_code":"NO_MATERIAL_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:45:24+00:00","current":0,"public_explanation":"ARIN-Issued lists it as \"Remove\", but ARIN's statistics show the same record before and after (reserved)."},{"raw_change_id":161162,"classification_code":"NO_MATERIAL_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:06:37+00:00","current":0,"public_explanation":"ARIN-Issued lists it as \"Remove\", but ARIN's statistics show the same record before and after (reserved)."},{"raw_change_id":161162,"classification_code":"NO_MATERIAL_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:49:20+00:00","current":0,"public_explanation":"ARIN-Issued lists it as \"Remove\", but ARIN's statistics show the same record before and after (reserved)."},{"raw_change_id":161162,"classification_code":"NO_MATERIAL_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:52:35+00:00","current":1,"public_explanation":"ARIN-Issued lists it as \"Remove\", but ARIN's statistics show the same record before and after (reserved)."}]},"arin_statistics_now":{"status":"allocated (dated 2019-09-03)"}}