{"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":"AS53251","resource_type":"asn","page":"https://rirtracker.com/asn/53251/","statistics_now":{"registry":"ARIN","status":"assigned (dated 2009-07-13)"},"current_holder":{"rir":"ARIN","org":"Liberty Cablevision of Puerto Rico","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":1294,"date":"2018-10-11T17:41:08Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Onelink Communications","recipient_org":"Liberty Cablevision of Puerto Rico","range":"AS53251","log":"ARIN"}],"events":[{"event_id":"71a2a8d06121f747","registry":"ARIN","report_date":"2023-04-10","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"asn","resource":"AS53251","start":53251,"end":53251,"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":"2026-10-14T00:10:30+00:00","page":"https://rirtracker.com/asn/53251/#e-71a2a8d06121f747","report_page":"https://rirtracker.com/arin/reports/2023-04-10/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/53251.json","observed":"AS53251 assigned on 2023-04-10, reserved on 2023-04-11","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":"2023-10-10","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 2009-07-13) on 2023-04-09 and reserved on 2023-04-11. 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 2023-10-10. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2023/delegated-arin-extended-20230411.gz","retrieved_at":"2026-10-12T23:18:52+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: AS53251 assigned on 2023-04-10, reserved on 2023-04-11"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2023/delegated-arin-extended-20230409.gz","retrieved_at":"2026-10-12T23:18:47+00:00","summary":"ARIN delegated statistics 2023-04-09 (produced 2023-04-09T13:00:11+00:00), before the report: assigned (dated 2009-07-13)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2023/delegated-arin-extended-20230411.gz","retrieved_at":"2026-10-12T23:18:52+00:00","summary":"ARIN delegated statistics 2023-04-11 (produced 2023-04-11T13:00:11+00:00), after the report: reserved"}]},{"event_id":"6f3afe106c8608da","registry":"ARIN","report_date":"2018-10-11","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"asn","resource":"AS53251","start":53251,"end":53251,"classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Onelink Communications","recipient_organization":"Liberty Cablevision of Puerto Rico","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:40+00:00","page":"https://rirtracker.com/asn/53251/#e-6f3afe106c8608da","report_page":"https://rirtracker.com/arin/reports/2018-10-11/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/53251.json","observed":"Merger/acquisition: Onelink Communications (ARIN) to Liberty Cablevision of Puerto Rico (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Onelink Communications (ARIN) to Liberty Cablevision of Puerto Rico (ARIN) on 2018-10-11 17:41 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 2018-10-11 17:41 UTC, Onelink Communications (ARIN) to Liberty Cablevision of Puerto Rico (ARIN); resources moved: AS53251"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20181010.gz","retrieved_at":"2026-10-12T21:53:47+00:00","summary":"ARIN delegated statistics 2018-10-10 (produced 2018-10-10T05:00:17+00:00), before the report: assigned (dated 2009-07-13)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20181012.gz","retrieved_at":"2026-10-12T21:54:00+00:00","summary":"ARIN delegated statistics 2018-10-12 (produced 2018-10-12T05:00:15+00:00), after the report: assigned (dated 2009-07-13)"}]}],"classification_history":{"71a2a8d06121f747":[{"raw_change_id":445286,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T05:58:47+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 2009-07-13) on 2023-04-09 and reserved on 2023-04-11. 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 2023-10-10. This does not confirm availability."},{"raw_change_id":445286,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:21:35+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 2009-07-13) on 2023-04-09 and reserved on 2023-04-11. 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 2023-10-10. This does not confirm availability."},{"raw_change_id":445286,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T15:05:34+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 2009-07-13) on 2023-04-09 and reserved on 2023-04-11. 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 2023-10-10. This does not confirm availability."},{"raw_change_id":445286,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:10:30+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 2009-07-13) on 2023-04-09 and reserved on 2023-04-11. 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 2023-10-10. This does not confirm availability."}],"6f3afe106c8608da":[{"raw_change_id":556706,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:40+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Onelink Communications (ARIN) to Liberty Cablevision of Puerto Rico (ARIN) on 2018-10-11 17:41 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."}]},"arin_statistics_now":{"status":"assigned (dated 2009-07-13)"}}