{"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":"AS40494","resource_type":"asn","page":"https://rirtracker.com/asn/40494/","statistics_now":{"registry":"ARIN","status":"assigned (dated 2021-06-30)"},"current_holder":{"rir":"ARIN","org":"Atos Healthcare Services, LLC.","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":542,"date":"2017-03-30T20:01:32Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"ACS Healthcare Solutions","recipient_org":"Atos Healthcare Services, LLC.","range":"AS40494","log":"ARIN"}],"events":[{"event_id":"5a2b7c25d110d69f","registry":"ARIN","report_date":"2021-06-30","source":"arin_issued","raw_action":"ADD","raw_line":"Add AS40494","resource_type":"asn","resource":"AS40494","start":40494,"end":40494,"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":"2026-10-13T23:53:10+00:00","page":"https://rirtracker.com/asn/40494/#e-5a2b7c25d110d69f","report_page":"https://rirtracker.com/arin/reports/2021-06-30/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/40494.json","explanation":"No transfer record matches. ARIN's statistics show it available on 2021-06-29 and assigned (dated 2021-06-30) on 2021-07-01. The tracker saw this range released from hold on 2020-09-16 (AS40494), so it appears to have been issued again from ARIN's pool.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2021-June/004583.html","retrieved_at":"2026-10-12T18:41:21+00:00","summary":"ARIN-Issued report for 2021-06-30: \"Add AS40494\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2021/delegated-arin-extended-20210629.gz","retrieved_at":"2026-10-12T22:44:57+00:00","summary":"ARIN delegated statistics 2021-06-29 (produced 2021-06-29T14:00:13+00:00), before the report: available"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2021/delegated-arin-extended-20210701.gz","retrieved_at":"2026-10-12T22:45:02+00:00","summary":"ARIN delegated statistics 2021-07-01 (produced 2021-07-01T14:00:13+00:00), after the report: assigned (dated 2021-06-30)"}]},{"event_id":"cb1271f6927e760a","registry":"ARIN","report_date":"2020-09-16","source":"arin_issued","raw_action":"REMOVE","raw_line":"Remove AS40494","resource_type":"asn","resource":"AS40494","start":40494,"end":40494,"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":"2026-10-13T23:52:56+00:00","page":"https://rirtracker.com/asn/40494/#e-cb1271f6927e760a","report_page":"https://rirtracker.com/arin/reports/2020-09-16/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/40494.json","explanation":"ARIN's statistics show it reserved on 2020-09-15 and available on 2020-09-17. 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 2018-08-07, 771 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/2020-September/004296.html","retrieved_at":"2026-10-12T18:41:02+00:00","summary":"ARIN-Issued report for 2020-09-16: \"Remove AS40494\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2020/delegated-arin-extended-20200915.gz","retrieved_at":"2026-10-12T22:30:19+00:00","summary":"ARIN delegated statistics 2020-09-15 (produced 2020-09-15T14:00:13+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2020/delegated-arin-extended-20200917.gz","retrieved_at":"2026-10-12T22:30:24+00:00","summary":"ARIN delegated statistics 2020-09-17 (produced 2020-09-17T14:00:13+00:00), after the report: available"}]},{"event_id":"7e173c4b6a4e275b","registry":"ARIN","report_date":"2018-08-07","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"asn","resource":"AS40494","start":40494,"end":40494,"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":"2026-10-14T00:04:37+00:00","page":"https://rirtracker.com/asn/40494/#e-7e173c4b6a4e275b","report_page":"https://rirtracker.com/arin/reports/2018-08-07/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/40494.json","observed":"AS40494 assigned on 2018-08-07, reserved on 2018-08-08","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":"2019-02-07","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 2007-03-28) on 2018-08-06 and reserved on 2018-08-08. 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 2019-02-07. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20180808.gz","retrieved_at":"2026-10-12T21:50:38+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: AS40494 assigned on 2018-08-07, reserved on 2018-08-08"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20180806.gz","retrieved_at":"2026-10-12T21:50:33+00:00","summary":"ARIN delegated statistics 2018-08-06 (produced 2018-08-06T05:00:21+00:00), before the report: assigned (dated 2007-03-28)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20180808.gz","retrieved_at":"2026-10-12T21:50:38+00:00","summary":"ARIN delegated statistics 2018-08-08 (produced 2018-08-08T05:00:22+00:00), after the report: reserved"}]},{"event_id":"938221674bb8376f","registry":"ARIN","report_date":"2017-03-30","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"asn","resource":"AS40494","start":40494,"end":40494,"classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"ACS Healthcare Solutions","recipient_organization":"Atos Healthcare Services, LLC.","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:28+00:00","page":"https://rirtracker.com/asn/40494/#e-938221674bb8376f","report_page":"https://rirtracker.com/arin/reports/2017-03-30/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/40494.json","observed":"Merger/acquisition: ACS Healthcare Solutions (ARIN) to Atos Healthcare Services, LLC. (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from ACS Healthcare Solutions (ARIN) to Atos Healthcare Services, LLC. (ARIN) on 2017-03-30 20:01 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 2017-03-30 20:01 UTC, ACS Healthcare Solutions (ARIN) to Atos Healthcare Services, LLC. (ARIN); resources moved: AS40494"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20170329.gz","retrieved_at":"2026-10-12T21:25:45+00:00","summary":"ARIN delegated statistics 2017-03-29 (produced 2017-03-29T05:09:56+00:00), before the report: assigned (dated 2007-03-28)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20170331.gz","retrieved_at":"2026-10-12T21:25:56+00:00","summary":"ARIN delegated statistics 2017-03-31 (produced 2017-03-31T05:10:02+00:00), after the report: assigned (dated 2007-03-28)"}]}],"classification_history":{"5a2b7c25d110d69f":[{"raw_change_id":171841,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:52:50+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2021-06-29 and assigned (dated 2021-06-30) on 2021-07-01. The tracker saw this range released from hold on 2020-09-16 (AS40494), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":171841,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:07:03+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2021-06-29 and assigned (dated 2021-06-30) on 2021-07-01. The tracker saw this range released from hold on 2020-09-16 (AS40494), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":171841,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:49:50+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2021-06-29 and assigned (dated 2021-06-30) on 2021-07-01. The tracker saw this range released from hold on 2020-09-16 (AS40494), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":171841,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:53:10+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2021-06-29 and assigned (dated 2021-06-30) on 2021-07-01. The tracker saw this range released from hold on 2020-09-16 (AS40494), so it appears to have been issued again from ARIN's pool."}],"cb1271f6927e760a":[{"raw_change_id":167265,"classification_code":"HOLD_RELEASED","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:49:30+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2020-09-15 and available on 2020-09-17. 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 2018-08-07, 771 days earlier. That is ARIN's own label: whether and when it is reissued is not confirmed."},{"raw_change_id":167265,"classification_code":"HOLD_RELEASED","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:06:52+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2020-09-15 and available on 2020-09-17. 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 2018-08-07, 771 days earlier. That is ARIN's own label: whether and when it is reissued is not confirmed."},{"raw_change_id":167265,"classification_code":"HOLD_RELEASED","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:49:38+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2020-09-15 and available on 2020-09-17. 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 2018-08-07, 771 days earlier. That is ARIN's own label: whether and when it is reissued is not confirmed."},{"raw_change_id":167265,"classification_code":"HOLD_RELEASED","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:52:56+00:00","current":1,"public_explanation":"ARIN's statistics show it reserved on 2020-09-15 and available on 2020-09-17. 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 2018-08-07, 771 days earlier. That is ARIN's own label: whether and when it is reissued is not confirmed."}],"7e173c4b6a4e275b":[{"raw_change_id":358668,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T05:23:26+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 assigned (dated 2007-03-28) on 2018-08-06 and reserved on 2018-08-08. 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 2019-02-07. This does not confirm availability."},{"raw_change_id":358668,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:16:42+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 2007-03-28) on 2018-08-06 and reserved on 2018-08-08. 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 2019-02-07. This does not confirm availability."},{"raw_change_id":358668,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T15:00:19+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 2007-03-28) on 2018-08-06 and reserved on 2018-08-08. 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 2019-02-07. This does not confirm availability."},{"raw_change_id":358668,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:04:37+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 2007-03-28) on 2018-08-06 and reserved on 2018-08-08. 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 2019-02-07. This does not confirm availability."}],"938221674bb8376f":[{"raw_change_id":551723,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:28+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from ACS Healthcare Solutions (ARIN) to Atos Healthcare Services, LLC. (ARIN) on 2017-03-30 20:01 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 2021-06-30)"}}