{"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":"AS6576","resource_type":"asn","page":"https://rirtracker.com/asn/6576/","statistics_now":{"registry":"ARIN","status":"assigned (dated 2013-09-24)"},"current_holder":{"rir":"ARIN","org":"Metro Communications Company","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":5028,"date":"2026-04-10T19:41:42Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"SUMMIT COMMUNICATIONS SYSTEM, INC.","recipient_org":"Metro Communications Company","range":"AS6576","log":"ARIN"}],"events":[{"event_id":"237e71b7ce56d99f","registry":"ARIN","report_date":"2026-04-10","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"asn","resource":"AS6576","start":6576,"end":6576,"classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"SUMMIT COMMUNICATIONS SYSTEM, INC.","recipient_organization":"Metro Communications Company","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:27+00:00","page":"https://rirtracker.com/asn/6576/#e-237e71b7ce56d99f","report_page":"https://rirtracker.com/arin/reports/2026-04-10/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/6576.json","observed":"Merger/acquisition: SUMMIT COMMUNICATIONS SYSTEM, INC. (ARIN) to Metro Communications Company (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from SUMMIT COMMUNICATIONS SYSTEM, INC. (ARIN) to Metro Communications Company (ARIN) on 2026-04-10 19:41 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 2026-04-10 19:41 UTC, SUMMIT COMMUNICATIONS SYSTEM, INC. (ARIN) to Metro Communications Company (ARIN); resources moved: AS6576"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260409","retrieved_at":"2026-10-09T18:59:37+00:00","summary":"ARIN delegated statistics 2026-04-09 (produced 2026-04-09T13:00:39+00:00), before the report: assigned (dated 2013-09-24)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260411","retrieved_at":"2026-10-09T18:59:44+00:00","summary":"ARIN delegated statistics 2026-04-11 (produced 2026-04-11T13:00:39+00:00), after the report: assigned (dated 2013-09-24)"}]},{"event_id":"37ca04424130ee41","registry":"ARIN","report_date":"2013-06-25","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"asn","resource":"AS6576","start":6576,"end":6576,"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":"2026-10-13T23:58:14+00:00","page":"https://rirtracker.com/asn/6576/#e-37ca04424130ee41","report_page":"https://rirtracker.com/arin/reports/2013-06-25/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/6576.json","observed":"AS6576 assigned on 2013-06-25, reserved on 2013-06-26","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":"2013-12-25","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 2011-06-03) on 2013-06-24 and reserved on 2013-06-26. 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 2013-12-25. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2013/delegated-arin-extended-20130626.gz","retrieved_at":"2026-10-12T20:00:48+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: AS6576 assigned on 2013-06-25, reserved on 2013-06-26"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2013/delegated-arin-extended-20130624.gz","retrieved_at":"2026-10-12T20:00:43+00:00","summary":"ARIN delegated statistics 2013-06-24 (produced 2013-06-24T05:05:30+00:00), before the report: assigned (dated 2011-06-03)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2013/delegated-arin-extended-20130626.gz","retrieved_at":"2026-10-12T20:00:48+00:00","summary":"ARIN delegated statistics 2013-06-26 (produced 2013-06-26T05:05:18+00:00), after the report: reserved"}]},{"event_id":"0dc6a55ea1660902","registry":"ARIN","report_date":"2010-11-30","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"asn","resource":"AS6576","start":6576,"end":6576,"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":"2026-10-13T23:56:08+00:00","page":"https://rirtracker.com/asn/6576/#e-0dc6a55ea1660902","report_page":"https://rirtracker.com/arin/reports/2010-11-30/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/6576.json","observed":"AS6576 allocated on 2010-11-30, not listed on 2010-12-01","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":"2011-05-30","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 allocated (dated 2009-10-13) on 2010-11-29 and not issued on 2010-12-01. (Until 2013-03-05, ARIN's statistics list only what's issued.) 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 2011-05-30. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2010/delegated-arin-20101201.gz","retrieved_at":"2026-10-12T19:13:27+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: AS6576 allocated on 2010-11-30, not listed on 2010-12-01"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2010/delegated-arin-20101129.gz","retrieved_at":"2026-10-12T19:13:23+00:00","summary":"ARIN delegated statistics 2010-11-29, before the report: allocated (dated 2009-10-13)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2010/delegated-arin-20101201.gz","retrieved_at":"2026-10-12T19:13:27+00:00","summary":"ARIN delegated statistics 2010-12-01, after the report: not issued"}]}],"classification_history":{"237e71b7ce56d99f":[{"raw_change_id":575849,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:27+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from SUMMIT COMMUNICATIONS SYSTEM, INC. (ARIN) to Metro Communications Company (ARIN) on 2026-04-10 19:41 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."}],"37ca04424130ee41":[{"raw_change_id":259910,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:35:47+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 2011-06-03) on 2013-06-24 and reserved on 2013-06-26. 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 2013-12-25. This does not confirm availability."},{"raw_change_id":259910,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:11:17+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 2011-06-03) on 2013-06-24 and reserved on 2013-06-26. 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 2013-12-25. This does not confirm availability."},{"raw_change_id":259910,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:54:29+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 2011-06-03) on 2013-06-24 and reserved on 2013-06-26. 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 2013-12-25. This does not confirm availability."},{"raw_change_id":259910,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:58:14+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 2011-06-03) on 2013-06-24 and reserved on 2013-06-26. 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 2013-12-25. This does not confirm availability."}],"0dc6a55ea1660902":[{"raw_change_id":223334,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:17:55+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 allocated (dated 2009-10-13) on 2010-11-29 and not issued on 2010-12-01. (Until 2013-03-05, ARIN's statistics list only what's issued.) 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 2011-05-30. This does not confirm availability."},{"raw_change_id":223334,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:09:26+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 allocated (dated 2009-10-13) on 2010-11-29 and not issued on 2010-12-01. (Until 2013-03-05, ARIN's statistics list only what's issued.) 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 2011-05-30. This does not confirm availability."},{"raw_change_id":223334,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:52:28+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 allocated (dated 2009-10-13) on 2010-11-29 and not issued on 2010-12-01. (Until 2013-03-05, ARIN's statistics list only what's issued.) 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 2011-05-30. This does not confirm availability."},{"raw_change_id":223334,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:56:08+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 allocated (dated 2009-10-13) on 2010-11-29 and not issued on 2010-12-01. (Until 2013-03-05, ARIN's statistics list only what's issued.) 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 2011-05-30. This does not confirm availability."}]},"arin_statistics_now":{"status":"assigned (dated 2013-09-24)"}}