{"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":"2604:6540::/32","resource_type":"ipv6","page":"https://rirtracker.com/ip/2604.6540..-2604.6540.ffff.ffff.ffff.ffff.ffff.ffff/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2023-12-28)"},"current_holder":{"rir":"ARIN","org":null,"how":"ARIN's latest statistics"},"rdap_snapshots":[],"transfers":[],"events":[{"event_id":"6c73e15441a01769","registry":"ARIN","report_date":"2023-12-28","source":"arin_issued","raw_action":"ADD","raw_line":"Add 2604:6540::-2604:6540:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF","resource_type":"ipv6","resource":"2604:6540::/32","start":"2604:6540::","end":"2604:6540:ffff:ffff:ffff:ffff:ffff:ffff","classification":"RESTORED","classification_label":"Restored to the same holder","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:53:55+00:00","page":"https://rirtracker.com/ip/2604.6540..-2604.6540.ffff.ffff.ffff.ffff.ffff.ffff/#e-6c73e15441a01769","report_page":"https://rirtracker.com/arin/reports/2023-12-28/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/2604.6540..-2604.6540.ffff.ffff.ffff.ffff.ffff.ffff.json","explanation":"No transfer record matches. ARIN's statistics show it reserved on 2023-12-27 and allocated (dated 2023-12-28) on 2023-12-29. The tracker saw it removed from registration on 2023-10-16 (73 days earlier), and it is back with the same holder record it had before, so it went back to its previous holder rather than to a new one: most likely a suspension lifted, a reinstatement or a correction.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2023-December/005494.html","retrieved_at":"2026-10-12T18:42:25+00:00","summary":"ARIN-Issued report for 2023-12-28: \"Add 2604:6540::-2604:6540:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2023/delegated-arin-extended-20231227.gz","retrieved_at":"2026-10-12T23:32:32+00:00","summary":"ARIN delegated statistics 2023-12-27 (produced 2023-12-27T14:00:33+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2023/delegated-arin-extended-20231229.gz","retrieved_at":"2026-10-12T23:32:45+00:00","summary":"ARIN delegated statistics 2023-12-29 (produced 2023-12-29T14:00:34+00:00), after the report: allocated (dated 2023-12-28)"}]},{"event_id":"a1594e885c82cb4a","registry":"ARIN","report_date":"2023-10-16","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"ipv6","resource":"2604:6540::/32","start":"2604:6540::","end":"2604:6540:ffff:ffff:ffff:ffff:ffff:ffff","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":"2026-10-14T00:11:12+00:00","page":"https://rirtracker.com/ip/2604.6540..-2604.6540.ffff.ffff.ffff.ffff.ffff.ffff/#e-a1594e885c82cb4a","report_page":"https://rirtracker.com/arin/reports/2023-10-16/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/2604.6540..-2604.6540.ffff.ffff.ffff.ffff.ffff.ffff.json","observed":"2604:6540::/32 allocated on 2023-10-16, reserved on 2023-10-17","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":"2024-04-16","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 allocated (dated 2017-08-25) on 2023-10-15 and reserved on 2023-10-17. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv6 space for 6 calendar months before reissuing it, so the estimated hold end is 2024-04-16. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2023/delegated-arin-extended-20231017.gz","retrieved_at":"2026-10-12T23:28:46+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 2604:6540::/32 allocated on 2023-10-16, reserved on 2023-10-17"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2023/delegated-arin-extended-20231015.gz","retrieved_at":"2026-10-12T23:28:41+00:00","summary":"ARIN delegated statistics 2023-10-15 (produced 2023-10-15T13:00:31+00:00), before the report: allocated (dated 2017-08-25)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2023/delegated-arin-extended-20231017.gz","retrieved_at":"2026-10-12T23:28:46+00:00","summary":"ARIN delegated statistics 2023-10-17 (produced 2023-10-17T13:00:33+00:00), after the report: reserved"}]},{"event_id":"c4a543552c76bad4","registry":"ARIN","report_date":"2017-08-25","source":"arin_issued","raw_action":"ADD","raw_line":"Add 2604:6540::-2604:6540:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF","resource_type":"ipv6","resource":"2604:6540::/32","start":"2604:6540::","end":"2604:6540:ffff:ffff:ffff:ffff:ffff:ffff","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 ARIN-controlled inventory","inventory_effect_code":"ISSUED","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:51:55+00:00","page":"https://rirtracker.com/ip/2604.6540..-2604.6540.ffff.ffff.ffff.ffff.ffff.ffff/#e-c4a543552c76bad4","report_page":"https://rirtracker.com/arin/reports/2017-08-25/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/2604.6540..-2604.6540.ffff.ffff.ffff.ffff.ffff.ffff.json","explanation":"No transfer record matches. ARIN's statistics show it available on 2017-08-24 and allocated (dated 2017-08-25) on 2017-08-26. It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2017-August/003180.html","retrieved_at":"2026-10-12T18:39:44+00:00","summary":"ARIN-Issued report for 2017-08-25: \"Add 2604:6540::-2604:6540:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20170824.gz","retrieved_at":"2026-10-12T21:33:15+00:00","summary":"ARIN delegated statistics 2017-08-24 (produced 2017-08-24T05:10:16+00:00), before the report: available"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20170826.gz","retrieved_at":"2026-10-12T21:33:20+00:00","summary":"ARIN delegated statistics 2017-08-26 (produced 2017-08-26T05:10:36+00:00), after the report: allocated (dated 2017-08-25)"}]}],"classification_history":{"6c73e15441a01769":[{"raw_change_id":184833,"classification_code":"RESTORED","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:00:46+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2023-12-27 and allocated (dated 2023-12-28) on 2023-12-29. The tracker saw it removed from registration on 2023-10-16 (73 days earlier), and it is back with the same holder record it had before, so it went back to its previous holder rather than to a new one: most likely a suspension lifted, a reinstatement or a correction."},{"raw_change_id":184833,"classification_code":"RESTORED","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:07:36+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2023-12-27 and allocated (dated 2023-12-28) on 2023-12-29. The tracker saw it removed from registration on 2023-10-16 (73 days earlier), and it is back with the same holder record it had before, so it went back to its previous holder rather than to a new one: most likely a suspension lifted, a reinstatement or a correction."},{"raw_change_id":184833,"classification_code":"RESTORED","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:50:27+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2023-12-27 and allocated (dated 2023-12-28) on 2023-12-29. The tracker saw it removed from registration on 2023-10-16 (73 days earlier), and it is back with the same holder record it had before, so it went back to its previous holder rather than to a new one: most likely a suspension lifted, a reinstatement or a correction."},{"raw_change_id":184833,"classification_code":"RESTORED","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:53:55+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2023-12-27 and allocated (dated 2023-12-28) on 2023-12-29. The tracker saw it removed from registration on 2023-10-16 (73 days earlier), and it is back with the same holder record it had before, so it went back to its previous holder rather than to a new one: most likely a suspension lifted, a reinstatement or a correction."}],"a1594e885c82cb4a":[{"raw_change_id":455686,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T06:03:47+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 allocated (dated 2017-08-25) on 2023-10-15 and reserved on 2023-10-17. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv6 space for 6 calendar months before reissuing it, so the earliest estimated hold expiration is 2024-04-16. This does not confirm availability."},{"raw_change_id":455686,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:22:08+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 allocated (dated 2017-08-25) on 2023-10-15 and reserved on 2023-10-17. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv6 space for 6 calendar months before reissuing it, so the earliest estimated hold expiration is 2024-04-16. This does not confirm availability."},{"raw_change_id":455686,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T15:06:10+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 allocated (dated 2017-08-25) on 2023-10-15 and reserved on 2023-10-17. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv6 space for 6 calendar months before reissuing it, so the earliest estimated hold expiration is 2024-04-16. This does not confirm availability."},{"raw_change_id":455686,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:11:12+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 allocated (dated 2017-08-25) on 2023-10-15 and reserved on 2023-10-17. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv6 space for 6 calendar months before reissuing it, so the estimated hold end is 2024-04-16. This does not confirm availability."}],"c4a543552c76bad4":[{"raw_change_id":151060,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:39:01+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2017-08-24 and allocated (dated 2017-08-25) on 2017-08-26. It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN."},{"raw_change_id":151060,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:06:07+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2017-08-24 and allocated (dated 2017-08-25) on 2017-08-26. It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN."},{"raw_change_id":151060,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:48:47+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2017-08-24 and allocated (dated 2017-08-25) on 2017-08-26. It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN."},{"raw_change_id":151060,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:51:55+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2017-08-24 and allocated (dated 2017-08-25) on 2017-08-26. It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN."}]},"arin_statistics_now":{"status":"allocated (dated 2023-12-28)"}}