{"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":"AS53766","resource_type":"asn","page":"https://rirtracker.com/asn/53766/","statistics_now":{"registry":"ARIN","status":"assigned (dated 2014-06-12)"},"current_holder":{"rir":"ARIN","org":"Arista Networks, Inc.","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":4896,"date":"2026-01-13T19:37:38Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Avago Technologies U.S. Inc.","recipient_org":"Arista Networks, Inc.","range":"AS53766","log":"ARIN"},{"id":4775,"date":"2025-11-14T17:15:51Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"VMWare, LLC","recipient_org":"Avago Technologies U.S. Inc.","range":"AS53766","log":"ARIN"},{"id":2524,"date":"2021-07-22T16:28:45Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"VeloCloud Networks, Inc.","recipient_org":"VMWare, Inc.","range":"AS53766","log":"ARIN"}],"events":[{"event_id":"759c3dd9b5d4656c","registry":"ARIN","report_date":"2026-01-13","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"asn","resource":"AS53766","start":53766,"end":53766,"classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Avago Technologies U.S. Inc.","recipient_organization":"Arista Networks, Inc.","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:25+00:00","page":"https://rirtracker.com/asn/53766/#e-759c3dd9b5d4656c","report_page":"https://rirtracker.com/arin/reports/2026-01-13/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/53766.json","observed":"Merger/acquisition: Avago Technologies U.S. Inc. (ARIN) to Arista Networks, Inc. (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Avago Technologies U.S. Inc. (ARIN) to Arista Networks, Inc. (ARIN) on 2026-01-13 19:37 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 2026-01-13 19:37 UTC, Avago Technologies U.S. Inc. (ARIN) to Arista Networks, Inc. (ARIN); resources moved: AS53766"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260112","retrieved_at":"2026-10-09T18:54:51+00:00","summary":"ARIN delegated statistics 2026-01-12 (produced 2026-01-12T14:00:47+00:00), before the report: assigned (dated 2014-06-12)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260114","retrieved_at":"2026-10-09T18:54:57+00:00","summary":"ARIN delegated statistics 2026-01-14 (produced 2026-01-14T14:00:47+00:00), after the report: assigned (dated 2014-06-12)"}]},{"event_id":"8489ea40adcaf4d6","registry":"ARIN","report_date":"2025-11-14","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"asn","resource":"AS53766","start":53766,"end":53766,"classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"VMWare, LLC","recipient_organization":"Avago Technologies U.S. Inc.","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:24+00:00","page":"https://rirtracker.com/asn/53766/#e-8489ea40adcaf4d6","report_page":"https://rirtracker.com/arin/reports/2025-11-14/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/53766.json","observed":"Merger/acquisition: VMWare, LLC (ARIN) to Avago Technologies U.S. Inc. (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from VMWare, LLC (ARIN) to Avago Technologies U.S. Inc. (ARIN) on 2025-11-14 17:15 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 2025-11-14 17:15 UTC, VMWare, LLC (ARIN) to Avago Technologies U.S. Inc. (ARIN); resources moved: AS53766"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20251113.gz","retrieved_at":"2026-10-13T00:10:06+00:00","summary":"ARIN delegated statistics 2025-11-13 (produced 2025-11-13T14:00:46+00:00), before the report: assigned (dated 2014-06-12)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20251115.gz","retrieved_at":"2026-10-13T00:10:21+00:00","summary":"ARIN delegated statistics 2025-11-15 (produced 2025-11-15T14:00:50+00:00), after the report: assigned (dated 2014-06-12)"}]},{"event_id":"96249c03d51bdc5d","registry":"ARIN","report_date":"2021-07-22","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"asn","resource":"AS53766","start":53766,"end":53766,"classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"VeloCloud Networks, Inc.","recipient_organization":"VMWare, Inc.","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:57+00:00","page":"https://rirtracker.com/asn/53766/#e-96249c03d51bdc5d","report_page":"https://rirtracker.com/arin/reports/2021-07-22/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/53766.json","observed":"Merger/acquisition: VeloCloud Networks, Inc. (ARIN) to VMWare, Inc. (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from VeloCloud Networks, Inc. (ARIN) to VMWare, Inc. (ARIN) on 2021-07-22 16:28 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 2021-07-22 16:28 UTC, VeloCloud Networks, Inc. (ARIN) to VMWare, Inc. (ARIN); resources moved: AS53766"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2021/delegated-arin-extended-20210721.gz","retrieved_at":"2026-10-12T22:46:07+00:00","summary":"ARIN delegated statistics 2021-07-21 (produced 2021-07-21T14:00:13+00:00), before the report: assigned (dated 2014-06-12)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2021/delegated-arin-extended-20210723.gz","retrieved_at":"2026-10-12T22:46:11+00:00","summary":"ARIN delegated statistics 2021-07-23 (produced 2021-07-23T14:00:13+00:00), after the report: assigned (dated 2014-06-12)"}]},{"event_id":"c0bb206a0d227651","registry":"ARIN","report_date":"2013-11-12","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"asn","resource":"AS53766","start":53766,"end":53766,"classification":"REMOVED_REASON_UNKNOWN","classification_label":"Removed (return, revocation or reclamation not publicly distinguishable)","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"Possible future reissue candidate after hold","inventory_effect_code":"HOLD_CANDIDATE","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:58:37+00:00","page":"https://rirtracker.com/asn/53766/#e-c0bb206a0d227651","report_page":"https://rirtracker.com/arin/reports/2013-11-12/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/53766.json","observed":"AS53766 assigned on 2013-11-12, reserved on 2013-11-13","hold":{"hold_rule_source_url":"https://www.arin.net/resources/guide/request/#reissuing-returned-revoked-and-reclaimed-resources","hold_rule_months":6,"estimated_hold_end":"2014-05-12","availability_statement":"Possible reissue candidate after this date; not confirmed available"},"explanation":"Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it assigned (dated 2011-05-13) on 2013-11-11 and reserved on 2013-11-13. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed ASNs for 6 calendar months before reissuing them, so the estimated hold end is 2014-05-12. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2013/delegated-arin-extended-20131113.gz","retrieved_at":"2026-10-12T20:07:29+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: AS53766 assigned on 2013-11-12, reserved on 2013-11-13"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2013/delegated-arin-extended-20131111.gz","retrieved_at":"2026-10-12T20:07:24+00:00","summary":"ARIN delegated statistics 2013-11-11 (produced 2013-11-11T06:06:42+00:00), before the report: assigned (dated 2011-05-13)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2013/delegated-arin-extended-20131113.gz","retrieved_at":"2026-10-12T20:07:29+00:00","summary":"ARIN delegated statistics 2013-11-13 (produced 2013-11-13T06:06:21+00:00), after the report: reserved"}]}],"classification_history":{"759c3dd9b5d4656c":[{"raw_change_id":575287,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:25+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Avago Technologies U.S. Inc. (ARIN) to Arista Networks, Inc. (ARIN) on 2026-01-13 19:37 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."}],"8489ea40adcaf4d6":[{"raw_change_id":574837,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:24+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from VMWare, LLC (ARIN) to Avago Technologies U.S. Inc. (ARIN) on 2025-11-14 17:15 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."}],"96249c03d51bdc5d":[{"raw_change_id":563617,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:57+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from VeloCloud Networks, Inc. (ARIN) to VMWare, Inc. (ARIN) on 2021-07-22 16:28 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."}],"c0bb206a0d227651":[{"raw_change_id":266198,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:39:03+00:00","current":0,"public_explanation":"Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it assigned (dated 2011-05-13) on 2013-11-11 and reserved on 2013-11-13. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed ASNs for 6 calendar months before reissuing them, so the earliest estimated hold expiration is 2014-05-12. This does not confirm availability."},{"raw_change_id":266198,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:11:36+00:00","current":0,"public_explanation":"Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it assigned (dated 2011-05-13) on 2013-11-11 and reserved on 2013-11-13. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed ASNs for 6 calendar months before reissuing them, so the earliest estimated hold expiration is 2014-05-12. This does not confirm availability."},{"raw_change_id":266198,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:54:50+00:00","current":0,"public_explanation":"Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it assigned (dated 2011-05-13) on 2013-11-11 and reserved on 2013-11-13. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed ASNs for 6 calendar months before reissuing them, so the earliest estimated hold expiration is 2014-05-12. This does not confirm availability."},{"raw_change_id":266198,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:58:37+00:00","current":1,"public_explanation":"Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it assigned (dated 2011-05-13) on 2013-11-11 and reserved on 2013-11-13. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed ASNs for 6 calendar months before reissuing them, so the estimated hold end is 2014-05-12. This does not confirm availability."}]},"arin_statistics_now":{"status":"assigned (dated 2014-06-12)"}}