{"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":"66.81.240.0/20","resource_type":"ipv4","page":"https://rirtracker.com/ip/66.81.240.0-66.81.255.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2020-06-29)"},"current_holder":{"rir":"ARIN","org":"RingCentral Inc","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":20950,"date":"2020-06-29T15:35:53Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"O1.com","recipient_org":"RingCentral Inc","range":"66.81.240.0/20","log":"ARIN"}],"events":[{"event_id":"9b098ada2fa4fb31","registry":"ARIN","report_date":"2020-06-29","source":"arin_issued","raw_action":"ADD","raw_line":"Add 66.81.240.0-66.81.255.255","resource_type":"ipv4","resource":"66.81.240.0/20","start":"66.81.240.0","end":"66.81.255.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-ARIN transfer","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"O1.com","recipient_organization":"RingCentral Inc","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:52:52+00:00","page":"https://rirtracker.com/ip/66.81.240.0-66.81.255.255/#e-9b098ada2fa4fb31","report_page":"https://rirtracker.com/arin/reports/2020-06-29/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/66.81.240.0-66.81.255.255.json","explanation":"ARIN's transfer log records a transfer from O1.com (ARIN) to RingCentral Inc (ARIN) on 2020-06-29 15:35 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/2020-June/004217.html","retrieved_at":"2026-10-12T18:40:56+00:00","summary":"ARIN-Issued report for 2020-06-29: \"Add 66.81.240.0-66.81.255.255\""},{"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 2020-06-29 15:35 UTC, O1.com (ARIN) to RingCentral Inc (ARIN); resources moved: 66.81.240.0/20"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2020/delegated-arin-extended-20200628.gz","retrieved_at":"2026-10-12T22:26:24+00:00","summary":"ARIN delegated statistics 2020-06-28 (produced 2020-06-28T14:00:13+00:00), before the report: allocated (dated 2012-02-13)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2020/delegated-arin-extended-20200630.gz","retrieved_at":"2026-10-12T22:26:29+00:00","summary":"ARIN delegated statistics 2020-06-30 (produced 2020-06-30T14:00:13+00:00), after the report: allocated (dated 2020-06-29)"}]},{"event_id":"5969ecf132ef3cb6","registry":"ARIN","report_date":"2012-02-13","source":"arin_issued","raw_action":"ADD","raw_line":"Add 66.81.240.0-66.81.255.255","resource_type":"ipv4","resource":"66.81.240.0/20","start":"66.81.240.0","end":"66.81.255.255","classification":"UNRESOLVED","classification_label":"Unresolved change","confidence":"OBSERVED_ONLY","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"Inventory effect unknown","inventory_effect_code":"UNKNOWN","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:50:58+00:00","page":"https://rirtracker.com/ip/66.81.240.0-66.81.255.255/#e-5969ecf132ef3cb6","report_page":"https://rirtracker.com/arin/reports/2012-02-13/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/66.81.240.0-66.81.255.255.json","explanation":"No transfer record matches. ARIN's statistics show it allocated (dated 2001-02-28) on 2012-02-12 and allocated (dated 2012-02-13) on 2012-02-14. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registration was replaced with one for a different holder record, and public sources don't say why (a transfer not yet logged, a return and reissue, or an organization record change).","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2012-February/001159.html","retrieved_at":"2026-10-12T18:37:25+00:00","summary":"ARIN-Issued report for 2012-02-13: \"Add 66.81.240.0-66.81.255.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2012/delegated-arin-20120212.gz","retrieved_at":"2026-10-12T19:31:48+00:00","summary":"ARIN delegated statistics 2012-02-12, before the report: allocated (dated 2001-02-28)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2012/delegated-arin-20120214.gz","retrieved_at":"2026-10-12T19:31:53+00:00","summary":"ARIN delegated statistics 2012-02-14, after the report: allocated (dated 2012-02-13)"}]}],"classification_history":{"9b098ada2fa4fb31":[{"raw_change_id":166109,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T03:48:41+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from O1.com (ARIN) to RingCentral Inc (ARIN) on 2020-06-29 15:35 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":166109,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:06:49+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from O1.com (ARIN) to RingCentral Inc (ARIN) on 2020-06-29 15:35 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":166109,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:49:34+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from O1.com (ARIN) to RingCentral Inc (ARIN) on 2020-06-29 15:35 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":166109,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:52:52+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from O1.com (ARIN) to RingCentral Inc (ARIN) on 2020-06-29 15:35 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."}],"5969ecf132ef3cb6":[{"raw_change_id":125490,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.0","classified_at":"2026-10-13T03:16:16+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it allocated (dated 2001-02-28) on 2012-02-12 and allocated (dated 2012-02-13) on 2012-02-14. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registration was replaced with one for a different holder record, and public sources don't say why (a transfer not yet logged, a return and reissue, or an organization record change)."},{"raw_change_id":125490,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.1","classified_at":"2026-10-13T08:05:23+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it allocated (dated 2001-02-28) on 2012-02-12 and allocated (dated 2012-02-13) on 2012-02-14. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registration was replaced with one for a different holder record, and public sources don't say why (a transfer not yet logged, a return and reissue, or an organization record change)."},{"raw_change_id":125490,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.2","classified_at":"2026-10-13T14:47:57+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it allocated (dated 2001-02-28) on 2012-02-12 and allocated (dated 2012-02-13) on 2012-02-14. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registration was replaced with one for a different holder record, and public sources don't say why (a transfer not yet logged, a return and reissue, or an organization record change)."},{"raw_change_id":125490,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.4.0","classified_at":"2026-10-13T23:50:58+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it allocated (dated 2001-02-28) on 2012-02-12 and allocated (dated 2012-02-13) on 2012-02-14. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registration was replaced with one for a different holder record, and public sources don't say why (a transfer not yet logged, a return and reissue, or an organization record change)."}]},"arin_statistics_now":{"status":"allocated (dated 2020-06-29)"}}