{"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":"173.243.152.0/22","resource_type":"ipv4","page":"https://rirtracker.com/ip/173.243.152.0-173.243.155.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2026-11-06)"},"current_holder":{"rir":"ARIN","org":"Broadband One of the Midwest, Inc.","handle":"BOM-30","how":"RDAP, looked up 2026-11-09 18:17 UTC"},"rdap_snapshots":[{"resource_type":"ipv4","start_key":"000000000000000000000000adf39800","end_key":"000000000000000000000000adf39bff","captured_at":"2026-11-09T18:17:55+00:00","reason":"24h","authoritative_rir":"ARIN","handle":"NET-173-243-152-0-2","name":"BOM-30","status":"active","org_handle":"BOM-30","org_name":"Broadband One of the Midwest, Inc.","registration_date":"2026-11-06T18:48:21-05:00","last_changed_date":"2026-11-06T18:48:21-05:00","rdap_url":"https://rdap.arin.net/registry/ip/173.243.152.0"},{"resource_type":"ipv4","start_key":"000000000000000000000000adf39800","end_key":"000000000000000000000000adf39bff","captured_at":"2026-11-07T18:20:40+00:00","reason":"first","authoritative_rir":"ARIN","handle":"NET-173-243-152-0-1","name":"CATHAY-BANCORP--INC","status":"active","org_handle":"C02754506","org_name":"Cathay Bancorp  Inc","registration_date":"2011-05-12T08:14:24-04:00","last_changed_date":"2026-11-06T18:48:21-05:00","rdap_url":"https://rdap.arin.net/registry/ip/173.243.152.0"}],"transfers":[{"id":134675,"date":"2026-11-06T23:48:21Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Towerstream I, Inc.","recipient_org":"Broadband One of the Midwest, Inc.","range":"173.243.152.0/22","log":"ARIN"}],"events":[{"event_id":"f5aa7558c58ecb31","registry":"ARIN","report_date":"2026-11-06","source":"arin_issued","raw_action":"ADD","raw_line":"Add 173.243.152.0-173.243.155.255","resource_type":"ipv4","resource":"173.243.152.0/22","start":"173.243.152.0","end":"173.243.155.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-ARIN transfer","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Towerstream I, Inc.","recipient_organization":"Broadband One of the Midwest, Inc.","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":true,"classifier_version":"1.4.0","classified_at":"2026-11-07T18:23:57+00:00","page":"https://rirtracker.com/ip/173.243.152.0-173.243.155.255/#e-f5aa7558c58ecb31","report_page":"https://rirtracker.com/arin/reports/2026-11-06/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/173.243.152.0-173.243.155.255.json","piece_of":{"resource":"173.243.144.0/20","page":"https://rirtracker.com/ip/173.243.144.0-173.243.159.255/"},"explanation":"ARIN's transfer log records a transfer from Towerstream I, Inc. (ARIN) to Broadband One of the Midwest, Inc. (ARIN) on 2026-11-06 23:48 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/2026-November/006540.html","retrieved_at":"2026-11-07T18:17:05+00:00","summary":"ARIN-Issued report for 2026-11-06: \"Add 173.243.152.0-173.243.155.255\""},{"type":"transfer","url":"https://ftp.arin.net/pub/stats/arin/transfers/transfers_latest.json","retrieved_at":"2026-11-07T18:17:07+00:00","summary":"Transfer log: RESOURCE_TRANSFER on 2026-11-06 23:48 UTC, Towerstream I, Inc. (ARIN) to Broadband One of the Midwest, Inc. (ARIN); resources moved: 173.243.152.0/22"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20261105","retrieved_at":"2026-11-05T18:17:11+00:00","summary":"ARIN delegated statistics 2026-11-05 (produced 2026-11-05T14:00:22+00:00), before the report: allocated (dated 2010-06-03)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20261107","retrieved_at":"2026-11-07T18:17:13+00:00","summary":"ARIN delegated statistics 2026-11-07 (produced 2026-11-07T14:00:21+00:00), after the report: allocated (dated 2026-11-06)"}]}],"classification_history":{"f5aa7558c58ecb31":[{"raw_change_id":579897,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-11-07T18:23:57+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from Towerstream I, Inc. (ARIN) to Broadband One of the Midwest, Inc. (ARIN) on 2026-11-06 23:48 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 2026-11-06)"}}