{"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":"167.99.0.0/16","resource_type":"ipv4","page":"https://rirtracker.com/ip/167.99.0.0-167.99.255.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2017-11-10)"},"current_holder":{"rir":"ARIN","org":"DigitalOcean, LLC","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":11330,"date":"2017-11-10T15:41:30Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Texas Health Resources","recipient_org":"DigitalOcean, LLC","range":"167.99.0.0/16","log":"ARIN"},{"id":11246,"date":"2017-11-01T12:50:19Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Harris Methodist Health Services","recipient_org":"Texas Health Resources","range":"167.99.0.0/16","log":"ARIN"}],"events":[{"event_id":"2beb8c4b8de4daa9","registry":"ARIN","report_date":"2017-11-10","source":"arin_issued","raw_action":"ADD","raw_line":"Add 167.99.0.0-167.99.255.255","resource_type":"ipv4","resource":"167.99.0.0/16","start":"167.99.0.0","end":"167.99.255.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-ARIN transfer","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Texas Health Resources","recipient_organization":"DigitalOcean, LLC","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:51:59+00:00","page":"https://rirtracker.com/ip/167.99.0.0-167.99.255.255/#e-2beb8c4b8de4daa9","report_page":"https://rirtracker.com/arin/reports/2017-11-10/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/167.99.0.0-167.99.255.255.json","explanation":"ARIN's transfer log records a transfer from Texas Health Resources (ARIN) to DigitalOcean, LLC (ARIN) on 2017-11-10 15:41 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/2017-November/003257.html","retrieved_at":"2026-10-12T18:39:51+00:00","summary":"ARIN-Issued report for 2017-11-10: \"Add 167.99.0.0-167.99.255.255\""},{"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 2017-11-10 15:41 UTC, Texas Health Resources (ARIN) to DigitalOcean, LLC (ARIN); resources moved: 167.99.0.0/16"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20171109.gz","retrieved_at":"2026-10-12T21:37:01+00:00","summary":"ARIN delegated statistics 2017-11-09 (produced 2017-11-09T06:10:56+00:00), before the report: assigned (dated 1993-05-25)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20171111.gz","retrieved_at":"2026-10-12T21:37:15+00:00","summary":"ARIN delegated statistics 2017-11-11 (produced 2017-11-11T06:11:04+00:00), after the report: allocated (dated 2017-11-10)"}]},{"event_id":"10f5bafaf9848de7","registry":"ARIN","report_date":"2017-11-01","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"167.99.0.0/16","start":"167.99.0.0","end":"167.99.255.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Harris Methodist Health Services","recipient_organization":"Texas Health Resources","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:32+00:00","page":"https://rirtracker.com/ip/167.99.0.0-167.99.255.255/#e-10f5bafaf9848de7","report_page":"https://rirtracker.com/arin/reports/2017-11-01/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/167.99.0.0-167.99.255.255.json","observed":"Merger/acquisition: Harris Methodist Health Services (ARIN) to Texas Health Resources (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Harris Methodist Health Services (ARIN) to Texas Health Resources (ARIN) on 2017-11-01 12:50 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 2017-11-01 12:50 UTC, Harris Methodist Health Services (ARIN) to Texas Health Resources (ARIN); resources moved: 167.99.0.0/16"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20171031.gz","retrieved_at":"2026-10-12T21:36:40+00:00","summary":"ARIN delegated statistics 2017-10-31 (produced 2017-10-31T05:10:37+00:00), before the report: assigned (dated 1993-05-25)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20171102.gz","retrieved_at":"2026-10-12T21:36:45+00:00","summary":"ARIN delegated statistics 2017-11-02 (produced 2017-11-02T05:09:50+00:00), after the report: assigned (dated 1993-05-25)"}]}],"classification_history":{"2beb8c4b8de4daa9":[{"raw_change_id":152072,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T03:39:34+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Texas Health Resources (ARIN) to DigitalOcean, LLC (ARIN) on 2017-11-10 15:41 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":152072,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:06:10+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Texas Health Resources (ARIN) to DigitalOcean, LLC (ARIN) on 2017-11-10 15:41 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":152072,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:48:50+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Texas Health Resources (ARIN) to DigitalOcean, LLC (ARIN) on 2017-11-10 15:41 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":152072,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:51:59+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from Texas Health Resources (ARIN) to DigitalOcean, LLC (ARIN) on 2017-11-10 15:41 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."}],"10f5bafaf9848de7":[{"raw_change_id":553275,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:32+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Harris Methodist Health Services (ARIN) to Texas Health Resources (ARIN) on 2017-11-01 12:50 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 2017-11-10)"}}