{"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":"AS19205","resource_type":"asn","page":"https://rirtracker.com/asn/19205/","statistics_now":{"registry":"ARIN","status":"assigned (dated 2025-08-25)"},"current_holder":{"rir":"ARIN","org":"Phibro LLC","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":1048,"date":"2018-06-13T18:49:28Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Phibro, LLC","recipient_org":"Phibro LLC","range":"AS19205","log":"ARIN"}],"events":[{"event_id":"7fd245c35e36ff19","registry":"ARIN","report_date":"2025-08-25","source":"arin_issued","raw_action":"ADD","raw_line":"Add AS19205","resource_type":"asn","resource":"AS19205","start":19205,"end":19205,"classification":"APPARENT_REISSUANCE","classification_label":"Apparent reissuance of previously removed resource","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"Likely issued from ARIN-controlled inventory","inventory_effect_code":"ISSUED","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:33+00:00","page":"https://rirtracker.com/asn/19205/#e-7fd245c35e36ff19","report_page":"https://rirtracker.com/arin/reports/2025-08-25/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/19205.json","explanation":"No transfer record matches. ARIN's statistics show it available on 2025-08-24 and assigned (dated 2025-08-25) on 2025-08-26. The tracker saw this range released from hold on 2025-08-19 (AS19205), so it appears to have been issued again from ARIN's pool.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2025-August/006099.html","retrieved_at":"2026-10-12T18:43:07+00:00","summary":"ARIN-Issued report for 2025-08-25: \"Add AS19205\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20250824.gz","retrieved_at":"2026-10-13T00:05:38+00:00","summary":"ARIN delegated statistics 2025-08-24 (produced 2025-08-24T13:00:50+00:00), before the report: available"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20250826.gz","retrieved_at":"2026-10-13T00:05:43+00:00","summary":"ARIN delegated statistics 2025-08-26 (produced 2025-08-26T13:00:51+00:00), after the report: assigned (dated 2025-08-25)"}]},{"event_id":"32bbf737f2af2812","registry":"ARIN","report_date":"2025-08-19","source":"arin_issued","raw_action":"REMOVE","raw_line":"Remove AS19205","resource_type":"asn","resource":"AS19205","start":19205,"end":19205,"classification":"HOLD_RELEASED","classification_label":"Released from hold (ARIN lists it as 'available')","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"ARIN's statistics now list it as 'available'; reissue not confirmed","inventory_effect_code":"RELEASED","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:33+00:00","page":"https://rirtracker.com/asn/19205/#e-32bbf737f2af2812","report_page":"https://rirtracker.com/arin/reports/2025-08-19/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/19205.json","explanation":"ARIN's statistics show it reserved on 2025-08-18 and available on 2025-08-20. ARIN took it out of its reserved (held) records; its statistics now give it the status 'available'. The tracker saw it removed from registration on 2020-02-03, 2024 days earlier. That is ARIN's own label: whether and when it is reissued is not confirmed.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2025-August/006093.html","retrieved_at":"2026-10-12T18:43:07+00:00","summary":"ARIN-Issued report for 2025-08-19: \"Remove AS19205\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20250818.gz","retrieved_at":"2026-10-13T00:05:10+00:00","summary":"ARIN delegated statistics 2025-08-18 (produced 2025-08-18T13:00:50+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20250820.gz","retrieved_at":"2026-10-13T00:05:15+00:00","summary":"ARIN delegated statistics 2025-08-20 (produced 2025-08-20T13:00:51+00:00), after the report: available"}]},{"event_id":"0f37b89873fc17ff","registry":"ARIN","report_date":"2020-02-03","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"asn","resource":"AS19205","start":19205,"end":19205,"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":"2026-10-14T00:06:31+00:00","page":"https://rirtracker.com/asn/19205/#e-0f37b89873fc17ff","report_page":"https://rirtracker.com/arin/reports/2020-02-03/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/19205.json","observed":"AS19205 assigned on 2020-02-03, reserved on 2020-02-04","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":"2020-08-03","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 2007-09-18) on 2020-02-02 and reserved on 2020-02-04. 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 2020-08-03. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2020/delegated-arin-extended-20200204.gz","retrieved_at":"2026-10-12T22:18:39+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: AS19205 assigned on 2020-02-03, reserved on 2020-02-04"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2020/delegated-arin-extended-20200202.gz","retrieved_at":"2026-10-12T22:18:34+00:00","summary":"ARIN delegated statistics 2020-02-02 (produced 2020-02-02T15:00:14+00:00), before the report: assigned (dated 2007-09-18)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2020/delegated-arin-extended-20200204.gz","retrieved_at":"2026-10-12T22:18:39+00:00","summary":"ARIN delegated statistics 2020-02-04 (produced 2020-02-04T15:00:13+00:00), after the report: reserved"}]},{"event_id":"02c87302682bc253","registry":"ARIN","report_date":"2018-06-13","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"asn","resource":"AS19205","start":19205,"end":19205,"classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Phibro, LLC","recipient_organization":"Phibro LLC","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:36+00:00","page":"https://rirtracker.com/asn/19205/#e-02c87302682bc253","report_page":"https://rirtracker.com/arin/reports/2018-06-13/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/19205.json","observed":"Merger/acquisition: Phibro, LLC (ARIN) to Phibro LLC (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Phibro, LLC (ARIN) to Phibro LLC (ARIN) on 2018-06-13 18:49 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 2018-06-13 18:49 UTC, Phibro, LLC (ARIN) to Phibro LLC (ARIN); resources moved: AS19205"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20180612.gz","retrieved_at":"2026-10-12T21:47:41+00:00","summary":"ARIN delegated statistics 2018-06-12 (produced 2018-06-12T05:00:25+00:00), before the report: assigned (dated 2007-09-18)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20180614.gz","retrieved_at":"2026-10-12T21:47:46+00:00","summary":"ARIN delegated statistics 2018-06-14 (produced 2018-06-14T05:00:24+00:00), after the report: assigned (dated 2007-09-18)"}]}],"classification_history":{"7fd245c35e36ff19":[{"raw_change_id":195633,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:07:32+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2025-08-24 and assigned (dated 2025-08-25) on 2025-08-26. The tracker saw this range released from hold on 2025-08-19 (AS19205), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":195633,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:08:05+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2025-08-24 and assigned (dated 2025-08-25) on 2025-08-26. The tracker saw this range released from hold on 2025-08-19 (AS19205), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":195633,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:50:59+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2025-08-24 and assigned (dated 2025-08-25) on 2025-08-26. The tracker saw this range released from hold on 2025-08-19 (AS19205), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":195633,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:33+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2025-08-24 and assigned (dated 2025-08-25) on 2025-08-26. The tracker saw this range released from hold on 2025-08-19 (AS19205), so it appears to have been issued again from ARIN's pool."}],"32bbf737f2af2812":[{"raw_change_id":195526,"classification_code":"HOLD_RELEASED","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:07:29+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2025-08-18 and available on 2025-08-20. ARIN took it out of its reserved (held) records; its statistics now give it the status 'available'. The tracker saw it removed from registration on 2020-02-03, 2024 days earlier. That is ARIN's own label: whether and when it is reissued is not confirmed."},{"raw_change_id":195526,"classification_code":"HOLD_RELEASED","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:08:04+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2025-08-18 and available on 2025-08-20. ARIN took it out of its reserved (held) records; its statistics now give it the status 'available'. The tracker saw it removed from registration on 2020-02-03, 2024 days earlier. That is ARIN's own label: whether and when it is reissued is not confirmed."},{"raw_change_id":195526,"classification_code":"HOLD_RELEASED","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:50:59+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2025-08-18 and available on 2025-08-20. ARIN took it out of its reserved (held) records; its statistics now give it the status 'available'. The tracker saw it removed from registration on 2020-02-03, 2024 days earlier. That is ARIN's own label: whether and when it is reissued is not confirmed."},{"raw_change_id":195526,"classification_code":"HOLD_RELEASED","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:33+00:00","current":1,"public_explanation":"ARIN's statistics show it reserved on 2025-08-18 and available on 2025-08-20. ARIN took it out of its reserved (held) records; its statistics now give it the status 'available'. The tracker saw it removed from registration on 2020-02-03, 2024 days earlier. That is ARIN's own label: whether and when it is reissued is not confirmed."}],"0f37b89873fc17ff":[{"raw_change_id":388737,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T05:34:31+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 2007-09-18) on 2020-02-02 and reserved on 2020-02-04. 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 2020-08-03. This does not confirm availability."},{"raw_change_id":388737,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:18:17+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 2007-09-18) on 2020-02-02 and reserved on 2020-02-04. 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 2020-08-03. This does not confirm availability."},{"raw_change_id":388737,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T15:02:02+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 2007-09-18) on 2020-02-02 and reserved on 2020-02-04. 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 2020-08-03. This does not confirm availability."},{"raw_change_id":388737,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:06:31+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 2007-09-18) on 2020-02-02 and reserved on 2020-02-04. 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 2020-08-03. This does not confirm availability."}],"02c87302682bc253":[{"raw_change_id":554794,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:36+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Phibro, LLC (ARIN) to Phibro LLC (ARIN) on 2018-06-13 18:49 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 2025-08-25)"}}