{"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":"144.125.0.0/16","resource_type":"ipv4","page":"https://rirtracker.com/ip/144.125.0.0-144.125.255.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2025-03-12)"},"current_holder":{"rir":"ARIN","org":"Palo Alto Networks, Inc","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":39323,"date":"2025-03-12T20:31:54Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"The Robert W. Woodruff Library of the Atlanta University Center, Inc.","recipient_org":"Palo Alto Networks, Inc","range":"144.125.0.0/16","log":"ARIN"},{"id":34841,"date":"2024-03-11T12:22:08Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Atlanta University Center, Inc.","recipient_org":"The Robert W. Woodruff Library of the Atlanta University Center, Inc.","range":"144.125.0.0/16","log":"ARIN"}],"events":[{"event_id":"4c758f426f5fae11","registry":"ARIN","report_date":"2025-03-12","source":"arin_issued","raw_action":"ADD","raw_line":"Add 144.125.0.0-144.125.255.255","resource_type":"ipv4","resource":"144.125.0.0/16","start":"144.125.0.0","end":"144.125.255.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-ARIN transfer","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"The Robert W. Woodruff Library of the Atlanta University Center, Inc.","recipient_organization":"Palo Alto Networks, Inc","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:24+00:00","page":"https://rirtracker.com/ip/144.125.0.0-144.125.255.255/#e-4c758f426f5fae11","report_page":"https://rirtracker.com/arin/reports/2025-03-12/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/144.125.0.0-144.125.255.255.json","explanation":"ARIN's transfer log records a transfer from The Robert W. Woodruff Library of the Atlanta University Center, Inc. (ARIN) to Palo Alto Networks, Inc (ARIN) on 2025-03-12 20:31 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/2025-March/005933.html","retrieved_at":"2026-10-12T18:42:57+00:00","summary":"ARIN-Issued report for 2025-03-12: \"Add 144.125.0.0-144.125.255.255\""},{"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 2025-03-12 20:31 UTC, The Robert W. Woodruff Library of the Atlanta University Center, Inc. (ARIN) to Palo Alto Networks, Inc (ARIN); resources moved: 144.125.0.0/16"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20250311.gz","retrieved_at":"2026-10-12T23:56:14+00:00","summary":"ARIN delegated statistics 2025-03-11 (produced 2025-03-11T13:01:06+00:00), before the report: allocated (dated 1990-12-05)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20250313.gz","retrieved_at":"2026-10-12T23:56:20+00:00","summary":"ARIN delegated statistics 2025-03-13 (produced 2025-03-13T13:01:07+00:00), after the report: allocated (dated 2025-03-12)"}]},{"event_id":"8ab628d8d3ab4a9d","registry":"ARIN","report_date":"2024-03-11","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"144.125.0.0/16","start":"144.125.0.0","end":"144.125.255.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Atlanta University Center, Inc.","recipient_organization":"The Robert W. Woodruff Library of the Atlanta University Center, Inc.","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:14+00:00","page":"https://rirtracker.com/ip/144.125.0.0-144.125.255.255/#e-8ab628d8d3ab4a9d","report_page":"https://rirtracker.com/arin/reports/2024-03-11/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/144.125.0.0-144.125.255.255.json","observed":"Merger/acquisition: Atlanta University Center, Inc. (ARIN) to The Robert W. Woodruff Library of the Atlanta University Center, Inc. (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Atlanta University Center, Inc. (ARIN) to The Robert W. Woodruff Library of the Atlanta University Center, Inc. (ARIN) on 2024-03-11 12:22 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 2024-03-11 12:22 UTC, Atlanta University Center, Inc. (ARIN) to The Robert W. Woodruff Library of the Atlanta University Center, Inc. (ARIN); resources moved: 144.125.0.0/16"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20240310.gz","retrieved_at":"2026-10-12T23:36:36+00:00","summary":"ARIN delegated statistics 2024-03-10 (produced 2024-03-10T13:00:44+00:00), before the report: allocated (dated 1990-12-05)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20240312.gz","retrieved_at":"2026-10-12T23:36:41+00:00","summary":"ARIN delegated statistics 2024-03-12 (produced 2024-03-12T13:00:43+00:00), after the report: allocated (dated 1990-12-05)"}]}],"classification_history":{"4c758f426f5fae11":[{"raw_change_id":192870,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T04:05:40+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from The Robert W. Woodruff Library of the Atlanta University Center, Inc. (ARIN) to Palo Alto Networks, Inc (ARIN) on 2025-03-12 20:31 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":192870,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:07:58+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from The Robert W. Woodruff Library of the Atlanta University Center, Inc. (ARIN) to Palo Alto Networks, Inc (ARIN) on 2025-03-12 20:31 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":192870,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:50:51+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from The Robert W. Woodruff Library of the Atlanta University Center, Inc. (ARIN) to Palo Alto Networks, Inc (ARIN) on 2025-03-12 20:31 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":192870,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:24+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from The Robert W. Woodruff Library of the Atlanta University Center, Inc. (ARIN) to Palo Alto Networks, Inc (ARIN) on 2025-03-12 20:31 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."}],"8ab628d8d3ab4a9d":[{"raw_change_id":570530,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:14+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Atlanta University Center, Inc. (ARIN) to The Robert W. Woodruff Library of the Atlanta University Center, Inc. (ARIN) on 2024-03-11 12:22 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."}]},"arin_statistics_now":{"status":"allocated (dated 2025-03-12)"}}