{"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":"158.120.192.0/19","resource_type":"ipv4","page":"https://rirtracker.com/ip/158.120.192.0-158.120.223.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2021-04-29)"},"current_holder":{"rir":"ARIN","org":"ACE Fiber","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":24525,"date":"2021-04-29T21:36:01Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"City of Colorado Springs","recipient_org":"ACE Fiber","range":"158.120.192.0/19","log":"ARIN"}],"events":[{"event_id":"4dd85eaa91282444","registry":"ARIN","report_date":"2021-04-29","source":"arin_issued","raw_action":"ADD","raw_line":"Add 158.120.192.0-158.120.223.255","resource_type":"ipv4","resource":"158.120.192.0/19","start":"158.120.192.0","end":"158.120.223.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-ARIN transfer","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"City of Colorado Springs","recipient_organization":"ACE Fiber","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:53:08+00:00","page":"https://rirtracker.com/ip/158.120.192.0-158.120.223.255/#e-4dd85eaa91282444","report_page":"https://rirtracker.com/arin/reports/2021-04-29/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/158.120.192.0-158.120.223.255.json","piece_of":{"resource":"158.120.0.0/16","page":"https://rirtracker.com/ip/158.120.0.0-158.120.255.255/"},"explanation":"ARIN's transfer log records a transfer from City of Colorado Springs (ARIN) to ACE Fiber (ARIN) on 2021-04-29 21:36 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/2021-April/004521.html","retrieved_at":"2026-10-12T18:41:17+00:00","summary":"ARIN-Issued report for 2021-04-29: \"Add 158.120.192.0-158.120.223.255\""},{"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 2021-04-29 21:36 UTC, City of Colorado Springs (ARIN) to ACE Fiber (ARIN); resources moved: 158.120.192.0/19"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2021/delegated-arin-extended-20210428.gz","retrieved_at":"2026-10-12T22:41:55+00:00","summary":"ARIN delegated statistics 2021-04-28 (produced 2021-04-28T14:00:14+00:00), before the report: assigned (dated 1992-02-28)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2021/delegated-arin-extended-20210430.gz","retrieved_at":"2026-10-12T22:42:00+00:00","summary":"ARIN delegated statistics 2021-04-30 (produced 2021-04-30T14:00:13+00:00), after the report: allocated (dated 2021-04-29)"}]}],"classification_history":{"4dd85eaa91282444":[{"raw_change_id":171201,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T03:52:19+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from City of Colorado Springs (ARIN) to ACE Fiber (ARIN) on 2021-04-29 21:36 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":171201,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:07:01+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from City of Colorado Springs (ARIN) to ACE Fiber (ARIN) on 2021-04-29 21:36 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":171201,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:49:48+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from City of Colorado Springs (ARIN) to ACE Fiber (ARIN) on 2021-04-29 21:36 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":171201,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:53:08+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from City of Colorado Springs (ARIN) to ACE Fiber (ARIN) on 2021-04-29 21:36 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 2021-04-29)"}}