{"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":"173.252.128.0/18","resource_type":"ipv4","page":"https://rirtracker.com/ip/173.252.128.0-173.252.191.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2010-09-16), allocated (dated 2023-04-13), allocated (dated 2023-05-25), allocated (dated 2024-03-04), allocated (dated 2025-11-19)"},"current_holder":{"rir":null,"org":null,"how":null},"rdap_snapshots":[],"transfers":[{"id":117108,"date":"2025-12-09T19:00:00Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_org":null,"recipient_org":"Core IP Solutions LLC","range":"173.252.145.0/24","log":"RIPE NCC"},{"id":117109,"date":"2025-12-09T19:00:00Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_org":null,"recipient_org":"Core IP Solutions LLC","range":"173.252.160.0/24","log":"RIPE NCC"},{"id":117110,"date":"2025-12-09T19:00:00Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_org":null,"recipient_org":"Core IP Solutions LLC","range":"173.252.166.0/24","log":"RIPE NCC"},{"id":42185,"date":"2025-12-09T16:50:58Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_org":"BroadbandONE, LLC","recipient_org":"Core IP Solutions LLC","range":"173.252.145.0/24","log":"ARIN"},{"id":42184,"date":"2025-12-09T16:50:58Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_org":"BroadbandONE, LLC","recipient_org":"Core IP Solutions LLC","range":"173.252.160.0/24","log":"ARIN"},{"id":42186,"date":"2025-12-09T16:50:58Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_org":"BroadbandONE, LLC","recipient_org":"Core IP Solutions LLC","range":"173.252.166.0/24","log":"ARIN"},{"id":42065,"date":"2025-11-19T12:39:52Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"BroadbandONE, LLC","recipient_org":"IntelliVoice","range":"173.252.136.0/24","log":"ARIN"},{"id":34727,"date":"2024-03-04T18:28:35Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Sungard Availability Network Solutions, Inc.","recipient_org":"Luxottica of America Inc.","range":"173.252.128.0/23","log":"ARIN"},{"id":32014,"date":"2023-05-25T12:47:10Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Sungard Availability Network Solutions, Inc.","recipient_org":"SANTA CLARA VALLEY WATER DISTRICT PUBLIC FACILITIES FINANCING CORPORATION","range":"173.252.143.0/24","log":"ARIN"},{"id":31254,"date":"2023-04-13T16:11:47Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Sungard Availability Network Solutions, Inc.","recipient_org":"OrangeHost","range":"173.252.167.0/24","log":"ARIN"},{"id":31253,"date":"2023-04-13T16:09:26Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Sungard Availability Network Solutions, Inc.","recipient_org":"2024 Rayford Road, L.P.","range":"173.252.144.0/24","log":"ARIN"},{"id":30456,"date":"2023-02-07T20:36:52Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Sungard Availability Network Solutions, Inc.","recipient_org":"BroadbandONE, LLC","range":"173.252.130.0/23","log":"ARIN"},{"id":30457,"date":"2023-02-07T20:36:52Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Sungard Availability Network Solutions, Inc.","recipient_org":"BroadbandONE, LLC","range":"173.252.132.0/23","log":"ARIN"},{"id":30458,"date":"2023-02-07T20:36:52Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Sungard Availability Network Solutions, Inc.","recipient_org":"BroadbandONE, LLC","range":"173.252.134.0/23","log":"ARIN"},{"id":30459,"date":"2023-02-07T20:36:52Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Sungard Availability Network Solutions, Inc.","recipient_org":"BroadbandONE, LLC","range":"173.252.136.0/23","log":"ARIN"},{"id":30460,"date":"2023-02-07T20:36:52Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Sungard Availability Network Solutions, Inc.","recipient_org":"BroadbandONE, LLC","range":"173.252.138.0/23","log":"ARIN"},{"id":30461,"date":"2023-02-07T20:36:52Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Sungard Availability Network Solutions, Inc.","recipient_org":"BroadbandONE, LLC","range":"173.252.140.0/23","log":"ARIN"},{"id":30462,"date":"2023-02-07T20:36:52Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Sungard Availability Network Solutions, Inc.","recipient_org":"BroadbandONE, LLC","range":"173.252.142.0/24","log":"ARIN"},{"id":30463,"date":"2023-02-07T20:36:52Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Sungard Availability Network Solutions, Inc.","recipient_org":"BroadbandONE, LLC","range":"173.252.145.0/24","log":"ARIN"},{"id":30464,"date":"2023-02-07T20:36:52Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Sungard Availability Network Solutions, Inc.","recipient_org":"BroadbandONE, LLC","range":"173.252.146.0/23","log":"ARIN"},{"id":30465,"date":"2023-02-07T20:36:52Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Sungard Availability Network Solutions, Inc.","recipient_org":"BroadbandONE, LLC","range":"173.252.148.0/23","log":"ARIN"},{"id":30466,"date":"2023-02-07T20:36:52Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Sungard Availability Network Solutions, Inc.","recipient_org":"BroadbandONE, LLC","range":"173.252.150.0/23","log":"ARIN"},{"id":30467,"date":"2023-02-07T20:36:52Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Sungard Availability Network Solutions, Inc.","recipient_org":"BroadbandONE, LLC","range":"173.252.152.0/22","log":"ARIN"},{"id":30468,"date":"2023-02-07T20:36:52Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Sungard Availability Network Solutions, Inc.","recipient_org":"BroadbandONE, LLC","range":"173.252.156.0/23","log":"ARIN"},{"id":30469,"date":"2023-02-07T20:36:52Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Sungard Availability Network Solutions, Inc.","recipient_org":"BroadbandONE, LLC","range":"173.252.158.0/23","log":"ARIN"},{"id":30470,"date":"2023-02-07T20:36:52Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Sungard Availability Network Solutions, Inc.","recipient_org":"BroadbandONE, LLC","range":"173.252.160.0/22","log":"ARIN"},{"id":30471,"date":"2023-02-07T20:36:52Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Sungard Availability Network Solutions, Inc.","recipient_org":"BroadbandONE, LLC","range":"173.252.164.0/23","log":"ARIN"},{"id":30472,"date":"2023-02-07T20:36:52Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Sungard Availability Network Solutions, Inc.","recipient_org":"BroadbandONE, LLC","range":"173.252.166.0/24","log":"ARIN"},{"id":30473,"date":"2023-02-07T20:36:52Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Sungard Availability Network Solutions, Inc.","recipient_org":"BroadbandONE, LLC","range":"173.252.168.0/23","log":"ARIN"},{"id":30474,"date":"2023-02-07T20:36:52Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Sungard Availability Network Solutions, Inc.","recipient_org":"BroadbandONE, LLC","range":"173.252.170.0/23","log":"ARIN"},{"id":30475,"date":"2023-02-07T20:36:52Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Sungard Availability Network Solutions, Inc.","recipient_org":"BroadbandONE, LLC","range":"173.252.172.0/23","log":"ARIN"},{"id":30476,"date":"2023-02-07T20:36:52Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Sungard Availability Network Solutions, Inc.","recipient_org":"BroadbandONE, LLC","range":"173.252.174.0/23","log":"ARIN"},{"id":30477,"date":"2023-02-07T20:36:52Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Sungard Availability Network Solutions, Inc.","recipient_org":"BroadbandONE, LLC","range":"173.252.176.0/22","log":"ARIN"},{"id":30515,"date":"2023-02-07T20:36:52Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Sungard Availability Network Solutions, Inc.","recipient_org":"BroadbandONE, LLC","range":"173.252.180.0/23","log":"ARIN"},{"id":30516,"date":"2023-02-07T20:36:52Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Sungard Availability Network Solutions, Inc.","recipient_org":"BroadbandONE, LLC","range":"173.252.182.0/23","log":"ARIN"},{"id":30517,"date":"2023-02-07T20:36:52Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Sungard Availability Network Solutions, Inc.","recipient_org":"BroadbandONE, LLC","range":"173.252.184.0/23","log":"ARIN"},{"id":30518,"date":"2023-02-07T20:36:52Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Sungard Availability Network Solutions, Inc.","recipient_org":"BroadbandONE, LLC","range":"173.252.186.0/23","log":"ARIN"},{"id":30519,"date":"2023-02-07T20:36:52Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Sungard Availability Network Solutions, Inc.","recipient_org":"BroadbandONE, LLC","range":"173.252.188.0/23","log":"ARIN"},{"id":30520,"date":"2023-02-07T20:36:52Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Sungard Availability Network Solutions, Inc.","recipient_org":"BroadbandONE, LLC","range":"173.252.190.0/23","log":"ARIN"}],"events":[{"event_id":"eaabe03806b5ff72","registry":"ARIN","report_date":"2010-09-16","source":"arin_issued","raw_action":"ADD","raw_line":"Add 173.252.128.0-173.252.191.255","resource_type":"ipv4","resource":"173.252.128.0/18","start":"173.252.128.0","end":"173.252.191.255","classification":"APPARENT_NEW_ISSUANCE","classification_label":"Apparent new issuance","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":"2026-10-13T23:50:50+00:00","page":"https://rirtracker.com/ip/173.252.128.0-173.252.191.255/#e-eaabe03806b5ff72","report_page":"https://rirtracker.com/arin/reports/2010-09-16/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/173.252.128.0-173.252.191.255.json","explanation":"No transfer record matches. ARIN's statistics show it not issued on 2010-09-15 and allocated (dated 2010-09-16) on 2010-09-17. (Until 2013-03-05, ARIN's statistics list only what's issued.) It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2010-September/000640.html","retrieved_at":"2026-10-12T18:36:49+00:00","summary":"ARIN-Issued report for 2010-09-16: \"Add 173.252.128.0-173.252.191.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2010/delegated-arin-20100915.gz","retrieved_at":"2026-10-12T19:10:20+00:00","summary":"ARIN delegated statistics 2010-09-15, before the report: not issued"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2010/delegated-arin-20100917.gz","retrieved_at":"2026-10-12T19:10:24+00:00","summary":"ARIN delegated statistics 2010-09-17, after the report: allocated (dated 2010-09-16)"}]}],"classification_history":{"eaabe03806b5ff72":[{"raw_change_id":121804,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:12:36+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it not issued on 2010-09-15 and allocated (dated 2010-09-16) on 2010-09-17. (Until 2013-03-05, ARIN's statistics list only what's issued.) It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN."},{"raw_change_id":121804,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:05:17+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it not issued on 2010-09-15 and allocated (dated 2010-09-16) on 2010-09-17. (Until 2013-03-05, ARIN's statistics list only what's issued.) It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN."},{"raw_change_id":121804,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:47:50+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it not issued on 2010-09-15 and allocated (dated 2010-09-16) on 2010-09-17. (Until 2013-03-05, ARIN's statistics list only what's issued.) It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN."},{"raw_change_id":121804,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:50:50+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it not issued on 2010-09-15 and allocated (dated 2010-09-16) on 2010-09-17. (Until 2013-03-05, ARIN's statistics list only what's issued.) It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN."}]},"arin_statistics_now":{"status":"allocated (dated 2010-09-16), allocated (dated 2023-04-13), allocated (dated 2023-05-25), allocated (dated 2024-03-04), allocated (dated 2025-11-19)"}}