{"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":"AS43074","resource_type":"asn","page":"https://rirtracker.com/asn/43074/","statistics_now":{"registry":"ARIN","status":"assigned (dated 2023-12-11)"},"current_holder":{"rir":"ARIN","org":"Maxim Healthcare Services, Inc.","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":100536,"date":"2023-12-11T19:00:00Z","type":"RESOURCE_TRANSFER","source_rir":"RIPE NCC","recipient_rir":"ARIN","source_org":"Klas Ltd","recipient_org":null,"range":"AS43074","log":"RIPE NCC"},{"id":3673,"date":"2023-12-11T15:04:52Z","type":"RESOURCE_TRANSFER","source_rir":"RIPE NCC","recipient_rir":"ARIN","source_org":"ORG-KL87-RIPE","recipient_org":"Maxim Healthcare Services, Inc.","range":"AS43074","log":"ARIN"}],"events":[{"event_id":"79505eae2ff97414","registry":"ARIN","report_date":"2023-12-11","source":"arin_issued","raw_action":"ADD","raw_line":"Add AS43074","resource_type":"asn","resource":"AS43074","start":43074,"end":43074,"classification":"INTER_RIR_TRANSFER_IN","classification_label":"Inter-RIR transfer into ARIN","confidence":"CONFIRMED","source_rir":"RIPE NCC","recipient_rir":"ARIN","source_organization":"ORG-KL87-RIPE","recipient_organization":"Maxim Healthcare Services, Inc.","inventory_effect":"Transferred into ARIN administration; not a new issuance","inventory_effect_code":"TRANSFER_IN","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:53:54+00:00","page":"https://rirtracker.com/asn/43074/#e-79505eae2ff97414","report_page":"https://rirtracker.com/arin/reports/2023-12-11/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/43074.json","same_transfer_as":"26d14619cd398fc0","explanation":"ARIN's transfer log records a transfer from ORG-KL87-RIPE (RIPE NCC) to Maxim Healthcare Services, Inc. (ARIN) on 2023-12-11 15:04 UTC: it came to ARIN from the RIPE NCC. It was already issued by another registry, so this is not a new issuance.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2023-December/005477.html","retrieved_at":"2026-10-12T18:42:25+00:00","summary":"ARIN-Issued report for 2023-12-11: \"Add AS43074\""},{"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 2023-12-11 15:04 UTC, ORG-KL87-RIPE (RIPE NCC) to Maxim Healthcare Services, Inc. (ARIN); resources moved: AS43074"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2023/delegated-arin-extended-20231210.gz","retrieved_at":"2026-10-12T23:31:39+00:00","summary":"ARIN delegated statistics 2023-12-10 (produced 2023-12-10T14:00:35+00:00), before the report: not listed"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2023/delegated-arin-extended-20231212.gz","retrieved_at":"2026-10-12T23:31:44+00:00","summary":"ARIN delegated statistics 2023-12-12 (produced 2023-12-12T14:00:33+00:00), after the report: assigned (dated 2023-12-11)"}]},{"event_id":"26d14619cd398fc0","registry":"RIPE NCC","report_date":"2023-12-11","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"asn","resource":"AS43074","start":43074,"end":43074,"classification":"INTER_RIR_TRANSFER_OUT","classification_label":"Inter-RIR transfer out of the RIPE NCC","confidence":"CONFIRMED","source_rir":"RIPE NCC","recipient_rir":"ARIN","source_organization":"Klas Ltd","recipient_organization":null,"inventory_effect":"Transferred out of RIPE NCC administration; not offered to RIPE NCC applicants","inventory_effect_code":"TRANSFER_OUT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:49:48+00:00","page":"https://rirtracker.com/asn/43074/#e-26d14619cd398fc0","report_page":"https://rirtracker.com/ripe/reports/2023-12-11/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/43074.json","observed":"Transfer: Klas Ltd (RIPE NCC) to (no name) (ARIN)","same_transfer_as":"79505eae2ff97414","explanation":"The RIPE NCC's transfer log records a transfer from Klas Ltd (RIPE NCC) to an unnamed organization (ARIN) on 2023-12-11 19:00 UTC: it left the RIPE NCC for ARIN. It is not a new allocation and is not offered to RIPE NCC applicants.","evidence":[{"type":"transfer","url":"https://ftp.ripe.net/pub/stats/ripencc/transfers/transfers_latest.json","retrieved_at":"2026-10-13T21:49:37+00:00","summary":"Transfer log: RESOURCE_TRANSFER on 2023-12-11 19:00 UTC, Klas Ltd (RIPE NCC) to (no name) (ARIN); resources moved: AS43074"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2023/delegated-ripencc-extended-20231210.bz2","retrieved_at":"2026-10-13T00:18:30+00:00","summary":"RIPE NCC delegated statistics 2023-12-10 (produced 2023-12-10T22:59:59+00:00), before the change: allocated (dated 2011-07-21)"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2023/delegated-ripencc-extended-20231211.bz2","retrieved_at":"2026-10-13T00:18:33+00:00","summary":"RIPE NCC delegated statistics 2023-12-11 (produced 2023-12-11T22:59:59+00:00), after the change: not listed"}]},{"event_id":"de0ad5fcc1add18b","registry":"RIPE NCC","report_date":"2011-07-21","source":"statistics","raw_action":"ADDED","raw_line":null,"resource_type":"asn","resource":"AS43074","start":43074,"end":43074,"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 RIPE NCC-controlled inventory","inventory_effect_code":"ISSUED","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:55:35+00:00","page":"https://rirtracker.com/asn/43074/#e-de0ad5fcc1add18b","report_page":"https://rirtracker.com/ripe/reports/2011-07-21/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/43074.json","observed":"AS43074 reserved on 2011-07-20, allocated on 2011-07-21","explanation":"No transfer record matches. The RIPE NCC's statistics show it reserved on 2011-07-20 and allocated (dated 2011-07-21) on 2011-07-21. The tracker saw this range removed from registration on 2011-01-22 (AS43074), so it appears to have been issued again from the RIPE NCC's pool.","evidence":[{"type":"statistics_diff","url":"https://ftp.ripe.net/pub/stats/ripencc/2011/delegated-ripencc-extended-20110721.bz2","retrieved_at":"2026-10-12T19:00:26+00:00","summary":"Found by comparing the RIPE NCC's daily statistics: AS43074 reserved on 2011-07-20, allocated on 2011-07-21"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2011/delegated-ripencc-extended-20110720.bz2","retrieved_at":"2026-10-12T19:00:24+00:00","summary":"RIPE NCC delegated statistics 2011-07-20 (produced 2011-07-20T21:59:59+00:00), before the change: reserved"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2011/delegated-ripencc-extended-20110721.bz2","retrieved_at":"2026-10-12T19:00:26+00:00","summary":"RIPE NCC delegated statistics 2011-07-21 (produced 2011-07-21T21:59:59+00:00), after the change: allocated (dated 2011-07-21)"}]},{"event_id":"61a148ffa79f6b87","registry":"RIPE NCC","report_date":"2011-01-22","source":"statistics","raw_action":"REMOVED","raw_line":null,"resource_type":"asn","resource":"AS43074","start":43074,"end":43074,"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":"2026-10-13T23:55:06+00:00","page":"https://rirtracker.com/asn/43074/#e-61a148ffa79f6b87","report_page":"https://rirtracker.com/ripe/reports/2011-01-22/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/43074.json","observed":"AS43074 allocated on 2011-01-21, available on 2011-01-22","explanation":"Removed from active registration. The tracker found it by comparing the RIPE NCC's daily statistics. The RIPE NCC's statistics show it allocated (dated 2007-06-01) on 2011-01-21 and available on 2011-01-22. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC's current hold for ASNs applies to removals from 2014-03-26 on, and this one came earlier, so the tracker gives no estimate. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.ripe.net/pub/stats/ripencc/2011/delegated-ripencc-extended-20110122.bz2","retrieved_at":"2026-10-12T18:51:01+00:00","summary":"Found by comparing the RIPE NCC's daily statistics: AS43074 allocated on 2011-01-21, available on 2011-01-22"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2011/delegated-ripencc-extended-20110121.bz2","retrieved_at":"2026-10-12T18:50:58+00:00","summary":"RIPE NCC delegated statistics 2011-01-21, before the change: allocated (dated 2007-06-01)"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2011/delegated-ripencc-extended-20110122.bz2","retrieved_at":"2026-10-12T18:51:01+00:00","summary":"RIPE NCC delegated statistics 2011-01-22, after the change: available"}]}],"classification_history":{"79505eae2ff97414":[{"raw_change_id":184532,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T04:00:37+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from ORG-KL87-RIPE (RIPE NCC) to Maxim Healthcare Services, Inc. (ARIN) on 2023-12-11 15:04 UTC: it came to ARIN from the RIPE NCC. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":184532,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:07:35+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from ORG-KL87-RIPE (RIPE NCC) to Maxim Healthcare Services, Inc. (ARIN) on 2023-12-11 15:04 UTC: it came to ARIN from the RIPE NCC. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":184532,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:50:26+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from ORG-KL87-RIPE (RIPE NCC) to Maxim Healthcare Services, Inc. (ARIN) on 2023-12-11 15:04 UTC: it came to ARIN from the RIPE NCC. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":184532,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:53:54+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from ORG-KL87-RIPE (RIPE NCC) to Maxim Healthcare Services, Inc. (ARIN) on 2023-12-11 15:04 UTC: it came to ARIN from the RIPE NCC. It was already issued by another registry, so this is not a new issuance."}],"26d14619cd398fc0":[{"raw_change_id":101069,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T03:03:08+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from Klas Ltd (RIPE NCC) to an unnamed organization (ARIN) on 2023-12-11 19:00 UTC: it left the RIPE NCC for ARIN. It is not a new allocation and is not offered to RIPE NCC applicants."},{"raw_change_id":101069,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:04:29+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from Klas Ltd (RIPE NCC) to an unnamed organization (ARIN) on 2023-12-11 19:00 UTC: it left the RIPE NCC for ARIN. It is not a new allocation and is not offered to RIPE NCC applicants."},{"raw_change_id":101069,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:46:57+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from Klas Ltd (RIPE NCC) to an unnamed organization (ARIN) on 2023-12-11 19:00 UTC: it left the RIPE NCC for ARIN. It is not a new allocation and is not offered to RIPE NCC applicants."},{"raw_change_id":101069,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:49:48+00:00","current":1,"public_explanation":"The RIPE NCC's transfer log records a transfer from Klas Ltd (RIPE NCC) to an unnamed organization (ARIN) on 2023-12-11 19:00 UTC: it left the RIPE NCC for ARIN. It is not a new allocation and is not offered to RIPE NCC applicants."}],"de0ad5fcc1add18b":[{"raw_change_id":214050,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:14:00+00:00","current":0,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it reserved on 2011-07-20 and allocated (dated 2011-07-21) on 2011-07-21. The tracker saw this range removed from registration on 2011-01-22 (AS43074), so it appears to have been issued again from the RIPE NCC's pool."},{"raw_change_id":214050,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:08:57+00:00","current":0,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it reserved on 2011-07-20 and allocated (dated 2011-07-21) on 2011-07-21. The tracker saw this range removed from registration on 2011-01-22 (AS43074), so it appears to have been issued again from the RIPE NCC's pool."},{"raw_change_id":214050,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:51:57+00:00","current":0,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it reserved on 2011-07-20 and allocated (dated 2011-07-21) on 2011-07-21. The tracker saw this range removed from registration on 2011-01-22 (AS43074), so it appears to have been issued again from the RIPE NCC's pool."},{"raw_change_id":214050,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:55:35+00:00","current":1,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it reserved on 2011-07-20 and allocated (dated 2011-07-21) on 2011-07-21. The tracker saw this range removed from registration on 2011-01-22 (AS43074), so it appears to have been issued again from the RIPE NCC's pool."}],"61a148ffa79f6b87":[{"raw_change_id":205272,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:11:07+00:00","current":0,"public_explanation":"Removed from active registration. The tracker found it by comparing the RIPE NCC's daily statistics. The RIPE NCC's statistics show it allocated (dated 2007-06-01) on 2011-01-21 and available on 2011-01-22. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC holds returned, revoked and reclaimed ASNs for 180 days (six months), or longer while still routed, before reissuing them, so the earliest estimated hold expiration is 2011-07-21. This does not confirm availability."},{"raw_change_id":205272,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:08:32+00:00","current":0,"public_explanation":"Removed from active registration. The tracker found it by comparing the RIPE NCC's daily statistics. The RIPE NCC's statistics show it allocated (dated 2007-06-01) on 2011-01-21 and available on 2011-01-22. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC's current hold for ASNs applies to removals from 2014-03-26 on, and this one came earlier, so the tracker gives no estimate. This does not confirm availability."},{"raw_change_id":205272,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:51:29+00:00","current":0,"public_explanation":"Removed from active registration. The tracker found it by comparing the RIPE NCC's daily statistics. The RIPE NCC's statistics show it allocated (dated 2007-06-01) on 2011-01-21 and available on 2011-01-22. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC's current hold for ASNs applies to removals from 2014-03-26 on, and this one came earlier, so the tracker gives no estimate. This does not confirm availability."},{"raw_change_id":205272,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:55:06+00:00","current":1,"public_explanation":"Removed from active registration. The tracker found it by comparing the RIPE NCC's daily statistics. The RIPE NCC's statistics show it allocated (dated 2007-06-01) on 2011-01-21 and available on 2011-01-22. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC's current hold for ASNs applies to removals from 2014-03-26 on, and this one came earlier, so the tracker gives no estimate. This does not confirm availability."}]},"arin_statistics_now":{"status":"assigned (dated 2023-12-11)"}}