{"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":"AS19272","resource_type":"asn","page":"https://rirtracker.com/asn/19272/","statistics_now":{"registry":"ARIN","status":"assigned (dated 2025-09-08)"},"current_holder":{"rir":"ARIN","org":" Name: Rochester Colo LLC,  Org ID: RCL-268","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":4670,"date":"2025-09-08T19:16:16Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Synoptek, LLC","recipient_org":" Name: Rochester Colo LLC,  Org ID: RCL-268","range":"AS19272","log":"ARIN"},{"id":1927,"date":"2019-12-12T20:13:35Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"CenterBeam, Inc.","recipient_org":"Synoptek, LLC","range":"AS19272","log":"ARIN"}],"events":[{"event_id":"64dc23cfe4e2822d","registry":"ARIN","report_date":"2025-09-08","source":"arin_issued","raw_action":"ADD","raw_line":"Add AS19272","resource_type":"asn","resource":"AS19272","start":19272,"end":19272,"classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-ARIN transfer","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Synoptek, LLC","recipient_organization":" Name: Rochester Colo LLC,  Org ID: RCL-268","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:34+00:00","page":"https://rirtracker.com/asn/19272/#e-64dc23cfe4e2822d","report_page":"https://rirtracker.com/arin/reports/2025-09-08/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/19272.json","explanation":"ARIN's transfer log records a transfer from Synoptek, LLC (ARIN) to  Name: Rochester Colo LLC,  Org ID: RCL-268 (ARIN) on 2025-09-08 19:16 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-September/006113.html","retrieved_at":"2026-10-12T18:43:09+00:00","summary":"ARIN-Issued report for 2025-09-08: \"Add AS19272\""},{"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 2025-09-08 19:16 UTC, Synoptek, LLC (ARIN) to  Name: Rochester Colo LLC,  Org ID: RCL-268 (ARIN); resources moved: AS19272"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20250907.gz","retrieved_at":"2026-10-13T00:06:25+00:00","summary":"ARIN delegated statistics 2025-09-07 (produced 2025-09-07T13:00:51+00:00), before the report: assigned (dated 2000-12-12)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20250909.gz","retrieved_at":"2026-10-13T00:06:31+00:00","summary":"ARIN delegated statistics 2025-09-09 (produced 2025-09-09T13:00:50+00:00), after the report: assigned (dated 2025-09-08)"}]},{"event_id":"b42383241565095b","registry":"ARIN","report_date":"2019-12-12","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"asn","resource":"AS19272","start":19272,"end":19272,"classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"CenterBeam, Inc.","recipient_organization":"Synoptek, LLC","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:48+00:00","page":"https://rirtracker.com/asn/19272/#e-b42383241565095b","report_page":"https://rirtracker.com/arin/reports/2019-12-12/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/19272.json","observed":"Merger/acquisition: CenterBeam, Inc. (ARIN) to Synoptek, LLC (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from CenterBeam, Inc. (ARIN) to Synoptek, LLC (ARIN) on 2019-12-12 20:13 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 2019-12-12 20:13 UTC, CenterBeam, Inc. (ARIN) to Synoptek, LLC (ARIN); resources moved: AS19272"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2019/delegated-arin-extended-20191211.gz","retrieved_at":"2026-10-12T22:15:48+00:00","summary":"ARIN delegated statistics 2019-12-11 (produced 2019-12-11T15:00:13+00:00), before the report: assigned (dated 2000-12-12)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2019/delegated-arin-extended-20191213.gz","retrieved_at":"2026-10-12T22:15:53+00:00","summary":"ARIN delegated statistics 2019-12-13 (produced 2019-12-13T15:00:14+00:00), after the report: assigned (dated 2000-12-12)"}]},{"event_id":"b91c85c430e7cd97","registry":"ARIN","report_date":"2018-09-11","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"asn","resource":"AS19272","start":19272,"end":19272,"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":"2026-10-14T00:04:42+00:00","page":"https://rirtracker.com/asn/19272/#e-b91c85c430e7cd97","report_page":"https://rirtracker.com/arin/reports/2018-09-11/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/19272.json","observed":"AS19272 assigned on 2018-09-11, reserved on 2018-09-12","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":"2019-03-11","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 2000-12-12) on 2018-09-10 and reserved on 2018-09-12. 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 2019-03-11. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20180912.gz","retrieved_at":"2026-10-12T21:52:20+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: AS19272 assigned on 2018-09-11, reserved on 2018-09-12"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20180910.gz","retrieved_at":"2026-10-12T21:52:15+00:00","summary":"ARIN delegated statistics 2018-09-10 (produced 2018-09-10T05:00:16+00:00), before the report: assigned (dated 2000-12-12)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20180912.gz","retrieved_at":"2026-10-12T21:52:20+00:00","summary":"ARIN delegated statistics 2018-09-12 (produced 2018-09-12T05:00:15+00:00), after the report: reserved"}]},{"event_id":"ed91c8e7e2944a5c","registry":"ARIN","report_date":"2009-01-21","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"asn","resource":"AS19272","start":19272,"end":19272,"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":"2026-10-13T23:54:49+00:00","page":"https://rirtracker.com/asn/19272/#e-ed91c8e7e2944a5c","report_page":"https://rirtracker.com/arin/reports/2009-01-21/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/19272.json","observed":"AS19272 allocated on 2009-01-21, not listed on 2009-01-22","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":"2009-07-21","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 2000-12-12) on 2009-01-20 and not issued on 2009-01-22. (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 2009-07-21. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2009/delegated-arin-20090122.gz","retrieved_at":"2026-10-12T18:45:36+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: AS19272 allocated on 2009-01-21, not listed on 2009-01-22"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2009/delegated-arin-20090120.gz","retrieved_at":"2026-10-12T18:45:32+00:00","summary":"ARIN delegated statistics 2009-01-20, before the report: allocated (dated 2000-12-12)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2009/delegated-arin-20090122.gz","retrieved_at":"2026-10-12T18:45:36+00:00","summary":"ARIN delegated statistics 2009-01-22, after the report: not issued"}]}],"classification_history":{"64dc23cfe4e2822d":[{"raw_change_id":195782,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T04:07:35+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Synoptek, LLC (ARIN) to  Name: Rochester Colo LLC,  Org ID: RCL-268 (ARIN) on 2025-09-08 19:16 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":195782,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:08:05+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Synoptek, LLC (ARIN) to  Name: Rochester Colo LLC,  Org ID: RCL-268 (ARIN) on 2025-09-08 19:16 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":195782,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:51:00+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Synoptek, LLC (ARIN) to  Name: Rochester Colo LLC,  Org ID: RCL-268 (ARIN) on 2025-09-08 19:16 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":195782,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:34+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from Synoptek, LLC (ARIN) to  Name: Rochester Colo LLC,  Org ID: RCL-268 (ARIN) on 2025-09-08 19:16 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."}],"b42383241565095b":[{"raw_change_id":559757,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:48+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from CenterBeam, Inc. (ARIN) to Synoptek, LLC (ARIN) on 2019-12-12 20:13 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."}],"b91c85c430e7cd97":[{"raw_change_id":359965,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T05:23:54+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 2000-12-12) on 2018-09-10 and reserved on 2018-09-12. 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 2019-03-11. This does not confirm availability."},{"raw_change_id":359965,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:16:46+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 2000-12-12) on 2018-09-10 and reserved on 2018-09-12. 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 2019-03-11. This does not confirm availability."},{"raw_change_id":359965,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T15:00:23+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 2000-12-12) on 2018-09-10 and reserved on 2018-09-12. 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 2019-03-11. This does not confirm availability."},{"raw_change_id":359965,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:04:42+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 2000-12-12) on 2018-09-10 and reserved on 2018-09-12. 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 2019-03-11. This does not confirm availability."}],"ed91c8e7e2944a5c":[{"raw_change_id":200337,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:09:39+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 2000-12-12) on 2009-01-20 and not issued on 2009-01-22. (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 2009-07-21. This does not confirm availability."},{"raw_change_id":200337,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:08:17+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 allocated (dated 2000-12-12) on 2009-01-20 and not issued on 2009-01-22. (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 2009-07-21. This does not confirm availability."},{"raw_change_id":200337,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:51:13+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 2000-12-12) on 2009-01-20 and not issued on 2009-01-22. (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 2009-07-21. This does not confirm availability."},{"raw_change_id":200337,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:49+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 2000-12-12) on 2009-01-20 and not issued on 2009-01-22. (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 2009-07-21. This does not confirm availability."}]},"arin_statistics_now":{"status":"assigned (dated 2025-09-08)"}}