{"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":"AS200351","resource_type":"asn","page":"https://rirtracker.com/asn/200351/","statistics_now":{"registry":"ARIN","status":"assigned (dated 2024-06-12)"},"current_holder":{"rir":"ARIN","org":null,"how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":106479,"date":"2024-07-02T19:00:00Z","type":"RESOURCE_TRANSFER","source_rir":"RIPE NCC","recipient_rir":"ARIN","source_org":"Guanzhong Chen","recipient_org":null,"range":"AS200351","log":"RIPE NCC"},{"id":3984,"date":"2024-06-12T13:54:49Z","type":"RESOURCE_TRANSFER","source_rir":"RIPE NCC","recipient_rir":"ARIN","source_org":"Guanzhong Chen","recipient_org":"Dynamic Quantum Networks","range":"AS200351","log":"ARIN"}],"events":[{"event_id":"8abc89bd693d2c8e","registry":"RIPE NCC","report_date":"2024-07-02","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"asn","resource":"AS200351","start":200351,"end":200351,"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":"Guanzhong Chen","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":"2026-10-13T23:50:06+00:00","page":"https://rirtracker.com/asn/200351/#e-8abc89bd693d2c8e","report_page":"https://rirtracker.com/ripe/reports/2024-07-02/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/200351.json","observed":"Transfer: Guanzhong Chen (RIPE NCC) to (no name) (ARIN)","explanation":"The RIPE NCC's transfer log records a transfer from Guanzhong Chen (RIPE NCC) to an unnamed organization (ARIN) on 2024-07-02 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 2024-07-02 19:00 UTC, Guanzhong Chen (RIPE NCC) to (no name) (ARIN); resources moved: AS200351"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2024/delegated-ripencc-extended-20240701.bz2","retrieved_at":"2026-10-13T00:33:52+00:00","summary":"RIPE NCC delegated statistics 2024-07-01 (produced 2024-07-01T21:59:59+00:00), before the change: not listed"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2024/delegated-ripencc-extended-20240702.bz2","retrieved_at":"2026-10-13T00:34:33+00:00","summary":"RIPE NCC delegated statistics 2024-07-02 (produced 2024-07-02T21:59:59+00:00), after the change: not listed"}]},{"event_id":"d58f8eda40a0e7e4","registry":"RIPE NCC","report_date":"2024-06-12","source":"statistics","raw_action":"REMOVED","raw_line":null,"resource_type":"asn","resource":"AS200351","start":200351,"end":200351,"classification":"REMOVED_REASON_UNKNOWN","classification_label":"Removed (return, revocation or reclamation not publicly distinguishable)","confidence":"OBSERVED_ONLY","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":"2026-10-14T00:14:52+00:00","page":"https://rirtracker.com/asn/200351/#e-d58f8eda40a0e7e4","report_page":"https://rirtracker.com/ripe/reports/2024-06-12/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/200351.json","observed":"AS200351 allocated on 2024-06-11, not listed on 2024-06-12","hold":{"hold_rule_source_url":"https://www.ripe.net/manage-ips-and-asns/resource-management/quarantine-for-returned-internet-number-resources","hold_rule_days":180,"estimated_hold_end":"2024-12-09","availability_statement":"Possible reissue candidate after this date; not confirmed available"},"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 2022-12-21) on 2024-06-11 and not listed on 2024-06-12. Being gone from the RIPE NCC's statistics entirely can also mean it moved to another registry. 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 estimated hold end is 2024-12-09. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.ripe.net/pub/stats/ripencc/2024/delegated-ripencc-extended-20240612.bz2","retrieved_at":"2026-10-13T00:32:33+00:00","summary":"Found by comparing the RIPE NCC's daily statistics: AS200351 allocated on 2024-06-11, not listed on 2024-06-12"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2024/delegated-ripencc-extended-20240611.bz2","retrieved_at":"2026-10-13T00:32:30+00:00","summary":"RIPE NCC delegated statistics 2024-06-11 (produced 2024-06-11T21:59:59+00:00), before the change: allocated (dated 2022-12-21)"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2024/delegated-ripencc-extended-20240612.bz2","retrieved_at":"2026-10-13T00:32:33+00:00","summary":"RIPE NCC delegated statistics 2024-06-12 (produced 2024-06-12T21:59:59+00:00), after the change: not listed"}]},{"event_id":"dc1c791428a15172","registry":"ARIN","report_date":"2024-06-12","source":"arin_issued","raw_action":"ADD","raw_line":"Add AS200351","resource_type":"asn","resource":"AS200351","start":200351,"end":200351,"classification":"INTER_RIR_TRANSFER_IN","classification_label":"Inter-RIR transfer into ARIN","confidence":"CONFIRMED","source_rir":"RIPE NCC","recipient_rir":"ARIN","source_organization":"Guanzhong Chen","recipient_organization":"Dynamic Quantum Networks","inventory_effect":"Transferred into ARIN administration; not a new issuance","inventory_effect_code":"TRANSFER_IN","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:06+00:00","page":"https://rirtracker.com/asn/200351/#e-dc1c791428a15172","report_page":"https://rirtracker.com/arin/reports/2024-06-12/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/200351.json","explanation":"ARIN's transfer log records a transfer from Guanzhong Chen (RIPE NCC) to Dynamic Quantum Networks (ARIN) on 2024-06-12 13:54 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/2024-June/005661.html","retrieved_at":"2026-10-12T18:42:38+00:00","summary":"ARIN-Issued report for 2024-06-12: \"Add AS200351\""},{"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 2024-06-12 13:54 UTC, Guanzhong Chen (RIPE NCC) to Dynamic Quantum Networks (ARIN); resources moved: AS200351"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20240611.gz","retrieved_at":"2026-10-12T23:41:26+00:00","summary":"ARIN delegated statistics 2024-06-11 (produced 2024-06-11T13:00:47+00:00), before the report: not listed"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20240613.gz","retrieved_at":"2026-10-12T23:41:31+00:00","summary":"ARIN delegated statistics 2024-06-13 (produced 2024-06-13T13:00:45+00:00), after the report: assigned (dated 2024-06-12)"}]},{"event_id":"3a03afe180688f5b","registry":"RIPE NCC","report_date":"2022-12-21","source":"statistics","raw_action":"ADDED","raw_line":null,"resource_type":"asn","resource":"AS200351","start":200351,"end":200351,"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":"2026-10-14T00:12:44+00:00","page":"https://rirtracker.com/asn/200351/#e-3a03afe180688f5b","report_page":"https://rirtracker.com/ripe/reports/2022-12-21/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/200351.json","observed":"AS200351 available on 2022-12-20, allocated on 2022-12-21","explanation":"No transfer record matches. The RIPE NCC's statistics show it available on 2022-12-20 and allocated (dated 2022-12-21) on 2022-12-21. The tracker saw this range released from hold on 2021-04-24 (AS200351), 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/2022/delegated-ripencc-extended-20221221.bz2","retrieved_at":"2026-10-12T23:51:43+00:00","summary":"Found by comparing the RIPE NCC's daily statistics: AS200351 available on 2022-12-20, allocated on 2022-12-21"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2022/delegated-ripencc-extended-20221220.bz2","retrieved_at":"2026-10-12T23:51:39+00:00","summary":"RIPE NCC delegated statistics 2022-12-20 (produced 2022-12-20T22:59:59+00:00), before the change: available"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2022/delegated-ripencc-extended-20221221.bz2","retrieved_at":"2026-10-12T23:51:43+00:00","summary":"RIPE NCC delegated statistics 2022-12-21 (produced 2022-12-21T22:59:59+00:00), after the change: allocated (dated 2022-12-21)"}]},{"event_id":"9cbbcea649aaf185","registry":"RIPE NCC","report_date":"2021-04-24","source":"statistics","raw_action":"RELEASED","raw_line":null,"resource_type":"asn","resource":"AS200351","start":200351,"end":200351,"classification":"HOLD_RELEASED","classification_label":"Released from hold (the RIPE NCC lists it as 'available')","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"The RIPE NCC's statistics now list it as 'available'; reissue not confirmed","inventory_effect_code":"RELEASED","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:09:36+00:00","page":"https://rirtracker.com/asn/200351/#e-9cbbcea649aaf185","report_page":"https://rirtracker.com/ripe/reports/2021-04-24/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/200351.json","observed":"AS200351 reserved on 2021-04-23, available on 2021-04-24","explanation":"The RIPE NCC's statistics show it reserved on 2021-04-23 and available on 2021-04-24. The RIPE NCC moved it from its reserved (held) records to the status it calls 'available'. The tracker saw it removed from registration on 2020-10-26, 180 days earlier. That is the RIPE NCC's own label: whether and when it is reissued is not confirmed.","evidence":[{"type":"statistics_diff","url":"https://ftp.ripe.net/pub/stats/ripencc/2021/delegated-ripencc-extended-20210424.bz2","retrieved_at":"2026-10-12T23:06:08+00:00","summary":"Found by comparing the RIPE NCC's daily statistics: AS200351 reserved on 2021-04-23, available on 2021-04-24"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2021/delegated-ripencc-extended-20210423.bz2","retrieved_at":"2026-10-12T23:06:05+00:00","summary":"RIPE NCC delegated statistics 2021-04-23 (produced 2021-04-23T21:59:00+00:00), before the change: reserved"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2021/delegated-ripencc-extended-20210424.bz2","retrieved_at":"2026-10-12T23:06:08+00:00","summary":"RIPE NCC delegated statistics 2021-04-24 (produced 2021-04-24T21:59:00+00:00), after the change: available"}]},{"event_id":"459159c65aa66d2b","registry":"RIPE NCC","report_date":"2020-10-26","source":"statistics","raw_action":"REMOVED","raw_line":null,"resource_type":"asn","resource":"AS200351","start":200351,"end":200351,"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":"2026-10-14T00:08:45+00:00","page":"https://rirtracker.com/asn/200351/#e-459159c65aa66d2b","report_page":"https://rirtracker.com/ripe/reports/2020-10-26/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/200351.json","observed":"AS200351 allocated on 2020-10-25, reserved on 2020-10-26","hold":{"hold_rule_source_url":"https://www.ripe.net/manage-ips-and-asns/resource-management/quarantine-for-returned-internet-number-resources","hold_rule_days":180,"estimated_hold_end":"2021-04-24","availability_statement":"Possible reissue candidate after this date; not confirmed available"},"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 2018-08-01) on 2020-10-25 and reserved on 2020-10-26. 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 estimated hold end is 2021-04-24. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.ripe.net/pub/stats/ripencc/2020/delegated-ripencc-extended-20201026.bz2","retrieved_at":"2026-10-12T22:52:57+00:00","summary":"Found by comparing the RIPE NCC's daily statistics: AS200351 allocated on 2020-10-25, reserved on 2020-10-26"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2020/delegated-ripencc-extended-20201025.bz2","retrieved_at":"2026-10-12T22:52:54+00:00","summary":"RIPE NCC delegated statistics 2020-10-25 (produced 2020-10-25T22:59:59+00:00), before the change: allocated (dated 2018-08-01)"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2020/delegated-ripencc-extended-20201026.bz2","retrieved_at":"2026-10-12T22:52:57+00:00","summary":"RIPE NCC delegated statistics 2020-10-26 (produced 2020-10-26T22:59:59+00:00), after the change: reserved"}]},{"event_id":"29011571d7a70974","registry":"RIPE NCC","report_date":"2018-08-01","source":"statistics","raw_action":"ADDED","raw_line":null,"resource_type":"asn","resource":"AS200351","start":200351,"end":200351,"classification":"APPARENT_NEW_ISSUANCE","classification_label":"Apparent new issuance","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":"2026-10-14T00:04:36+00:00","page":"https://rirtracker.com/asn/200351/#e-29011571d7a70974","report_page":"https://rirtracker.com/ripe/reports/2018-08-01/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/200351.json","observed":"AS200351 available on 2018-07-31, allocated on 2018-08-01","explanation":"No transfer record matches. The RIPE NCC's statistics show it available on 2018-07-31 and allocated (dated 2018-08-01) on 2018-08-01. It moved from the RIPE NCC's unissued pool to an active registration dated around that day, so it appears to be newly issued by the RIPE NCC.","evidence":[{"type":"statistics_diff","url":"https://ftp.ripe.net/pub/stats/ripencc/2018/delegated-ripencc-extended-20180801.bz2","retrieved_at":"2026-10-12T21:50:16+00:00","summary":"Found by comparing the RIPE NCC's daily statistics: AS200351 available on 2018-07-31, allocated on 2018-08-01"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2018/delegated-ripencc-extended-20180731.bz2","retrieved_at":"2026-10-12T21:50:13+00:00","summary":"RIPE NCC delegated statistics 2018-07-31 (produced 2018-07-31T21:59:59+00:00), before the change: available"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2018/delegated-ripencc-extended-20180801.bz2","retrieved_at":"2026-10-12T21:50:16+00:00","summary":"RIPE NCC delegated statistics 2018-08-01 (produced 2018-08-01T21:59:59+00:00), after the change: allocated (dated 2018-08-01)"}]}],"classification_history":{"8abc89bd693d2c8e":[{"raw_change_id":107074,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T03:05:44+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from Guanzhong Chen (RIPE NCC) to an unnamed organization (ARIN) on 2024-07-02 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":107074,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:04:43+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from Guanzhong Chen (RIPE NCC) to an unnamed organization (ARIN) on 2024-07-02 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":107074,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:47:12+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from Guanzhong Chen (RIPE NCC) to an unnamed organization (ARIN) on 2024-07-02 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":107074,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:50:06+00:00","current":1,"public_explanation":"The RIPE NCC's transfer log records a transfer from Guanzhong Chen (RIPE NCC) to an unnamed organization (ARIN) on 2024-07-02 19:00 UTC: it left the RIPE NCC for ARIN. It is not a new allocation and is not offered to RIPE NCC applicants."}],"d58f8eda40a0e7e4":[{"raw_change_id":502324,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"OBSERVED_ONLY","classifier_version":"1.3.0","classified_at":"2026-10-13T06:25:16+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 2022-12-21) on 2024-06-11 and not listed on 2024-06-12. Being gone from the RIPE NCC's statistics entirely can also mean it moved to another registry. 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 2024-12-09. This does not confirm availability."},{"raw_change_id":502324,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"OBSERVED_ONLY","classifier_version":"1.3.1","classified_at":"2026-10-13T08:25:03+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 2022-12-21) on 2024-06-11 and not listed on 2024-06-12. Being gone from the RIPE NCC's statistics entirely can also mean it moved to another registry. 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 2024-12-09. This does not confirm availability."},{"raw_change_id":502324,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"OBSERVED_ONLY","classifier_version":"1.3.2","classified_at":"2026-10-13T15:09:17+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 2022-12-21) on 2024-06-11 and not listed on 2024-06-12. Being gone from the RIPE NCC's statistics entirely can also mean it moved to another registry. 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 2024-12-09. This does not confirm availability."},{"raw_change_id":502324,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"OBSERVED_ONLY","classifier_version":"1.4.0","classified_at":"2026-10-14T00:14:52+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 2022-12-21) on 2024-06-11 and not listed on 2024-06-12. Being gone from the RIPE NCC's statistics entirely can also mean it moved to another registry. 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 estimated hold end is 2024-12-09. This does not confirm availability."}],"dc1c791428a15172":[{"raw_change_id":187678,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T04:02:27+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Guanzhong Chen (RIPE NCC) to Dynamic Quantum Networks (ARIN) on 2024-06-12 13:54 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":187678,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:07:44+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Guanzhong Chen (RIPE NCC) to Dynamic Quantum Networks (ARIN) on 2024-06-12 13:54 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":187678,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:50:36+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Guanzhong Chen (RIPE NCC) to Dynamic Quantum Networks (ARIN) on 2024-06-12 13:54 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":187678,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:06+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from Guanzhong Chen (RIPE NCC) to Dynamic Quantum Networks (ARIN) on 2024-06-12 13:54 UTC: it came to ARIN from the RIPE NCC. It was already issued by another registry, so this is not a new issuance."}],"3a03afe180688f5b":[{"raw_change_id":473650,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T06:11:16+00:00","current":0,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it available on 2022-12-20 and allocated (dated 2022-12-21) on 2022-12-21. The tracker saw this range released from hold on 2021-04-24 (AS200351), so it appears to have been issued again from the RIPE NCC's pool."},{"raw_change_id":473650,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:23:19+00:00","current":0,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it available on 2022-12-20 and allocated (dated 2022-12-21) on 2022-12-21. The tracker saw this range released from hold on 2021-04-24 (AS200351), so it appears to have been issued again from the RIPE NCC's pool."},{"raw_change_id":473650,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T15:07:26+00:00","current":0,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it available on 2022-12-20 and allocated (dated 2022-12-21) on 2022-12-21. The tracker saw this range released from hold on 2021-04-24 (AS200351), so it appears to have been issued again from the RIPE NCC's pool."},{"raw_change_id":473650,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:12:44+00:00","current":1,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it available on 2022-12-20 and allocated (dated 2022-12-21) on 2022-12-21. The tracker saw this range released from hold on 2021-04-24 (AS200351), so it appears to have been issued again from the RIPE NCC's pool."}],"9cbbcea649aaf185":[{"raw_change_id":431878,"classification_code":"HOLD_RELEASED","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T05:52:58+00:00","current":0,"public_explanation":"The RIPE NCC's statistics show it reserved on 2021-04-23 and available on 2021-04-24. The RIPE NCC moved it from its reserved (held) records to the status it calls 'available'. The tracker saw it removed from registration on 2020-10-26, 180 days earlier. That is the RIPE NCC's own label: whether and when it is reissued is not confirmed."},{"raw_change_id":431878,"classification_code":"HOLD_RELEASED","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:20:49+00:00","current":0,"public_explanation":"The RIPE NCC's statistics show it reserved on 2021-04-23 and available on 2021-04-24. The RIPE NCC moved it from its reserved (held) records to the status it calls 'available'. The tracker saw it removed from registration on 2020-10-26, 180 days earlier. That is the RIPE NCC's own label: whether and when it is reissued is not confirmed."},{"raw_change_id":431878,"classification_code":"HOLD_RELEASED","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T15:04:45+00:00","current":0,"public_explanation":"The RIPE NCC's statistics show it reserved on 2021-04-23 and available on 2021-04-24. The RIPE NCC moved it from its reserved (held) records to the status it calls 'available'. The tracker saw it removed from registration on 2020-10-26, 180 days earlier. That is the RIPE NCC's own label: whether and when it is reissued is not confirmed."},{"raw_change_id":431878,"classification_code":"HOLD_RELEASED","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:09:36+00:00","current":1,"public_explanation":"The RIPE NCC's statistics show it reserved on 2021-04-23 and available on 2021-04-24. The RIPE NCC moved it from its reserved (held) records to the status it calls 'available'. The tracker saw it removed from registration on 2020-10-26, 180 days earlier. That is the RIPE NCC's own label: whether and when it is reissued is not confirmed."}],"459159c65aa66d2b":[{"raw_change_id":420888,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T05:48:28+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 2018-08-01) on 2020-10-25 and reserved on 2020-10-26. 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 2021-04-24. This does not confirm availability."},{"raw_change_id":420888,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:20:07+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 2018-08-01) on 2020-10-25 and reserved on 2020-10-26. 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 2021-04-24. This does not confirm availability."},{"raw_change_id":420888,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T15:04:00+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 2018-08-01) on 2020-10-25 and reserved on 2020-10-26. 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 2021-04-24. This does not confirm availability."},{"raw_change_id":420888,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:08:45+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 2018-08-01) on 2020-10-25 and reserved on 2020-10-26. 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 estimated hold end is 2021-04-24. This does not confirm availability."}],"29011571d7a70974":[{"raw_change_id":358484,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T05:23:20+00:00","current":0,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it available on 2018-07-31 and allocated (dated 2018-08-01) on 2018-08-01. It moved from the RIPE NCC's unissued pool to an active registration dated around that day, so it appears to be newly issued by the RIPE NCC."},{"raw_change_id":358484,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:16:41+00:00","current":0,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it available on 2018-07-31 and allocated (dated 2018-08-01) on 2018-08-01. It moved from the RIPE NCC's unissued pool to an active registration dated around that day, so it appears to be newly issued by the RIPE NCC."},{"raw_change_id":358484,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T15:00:18+00:00","current":0,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it available on 2018-07-31 and allocated (dated 2018-08-01) on 2018-08-01. It moved from the RIPE NCC's unissued pool to an active registration dated around that day, so it appears to be newly issued by the RIPE NCC."},{"raw_change_id":358484,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:04:36+00:00","current":1,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it available on 2018-07-31 and allocated (dated 2018-08-01) on 2018-08-01. It moved from the RIPE NCC's unissued pool to an active registration dated around that day, so it appears to be newly issued by the RIPE NCC."}]},"arin_statistics_now":{"status":"assigned (dated 2024-06-12)"}}