{"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":"2620:fa:4000::/48","resource_type":"ipv6","page":"https://rirtracker.com/ip/2620.fa.4000..-2620.fa.4000.ffff.ffff.ffff.ffff.ffff/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2025-12-23)"},"current_holder":{"rir":"ARIN","org":null,"how":"ARIN's latest statistics"},"rdap_snapshots":[],"transfers":[],"events":[{"event_id":"3004f7a36b172565","registry":"ARIN","report_date":"2025-12-23","source":"arin_issued","raw_action":"ADD","raw_line":"Add 2620:FA:4000::-2620:FA:4000:FFFF:FFFF:FFFF:FFFF:FFFF","resource_type":"ipv6","resource":"2620:fa:4000::/48","start":"2620:fa:4000::","end":"2620:fa:4000:ffff:ffff:ffff:ffff:ffff","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":"2026-10-13T23:54:42+00:00","page":"https://rirtracker.com/ip/2620.fa.4000..-2620.fa.4000.ffff.ffff.ffff.ffff.ffff/#e-3004f7a36b172565","report_page":"https://rirtracker.com/arin/reports/2025-12-23/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/2620.fa.4000..-2620.fa.4000.ffff.ffff.ffff.ffff.ffff.json","explanation":"No transfer record matches. ARIN's statistics show it available on 2025-12-22 and allocated (dated 2025-12-23) on 2025-12-24. The tracker saw this range released from hold on 2025-12-18 (2620:FA:4000::-2620:FA:4000:FFFF:FFFF:FFFF:FFFF:FFFF), 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-December/006219.html","retrieved_at":"2026-10-12T18:43:16+00:00","summary":"ARIN-Issued report for 2025-12-23: \"Add 2620:FA:4000::-2620:FA:4000:FFFF:FFFF:FFFF:FFFF:FFFF\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20251222.gz","retrieved_at":"2026-10-13T00:12:11+00:00","summary":"ARIN delegated statistics 2025-12-22 (produced 2025-12-22T14:00:47+00:00), before the report: available"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20251224.gz","retrieved_at":"2026-10-13T00:12:16+00:00","summary":"ARIN delegated statistics 2025-12-24 (produced 2025-12-24T14:00:48+00:00), after the report: allocated (dated 2025-12-23)"}]},{"event_id":"42b982c37ec01c72","registry":"ARIN","report_date":"2025-12-18","source":"arin_issued","raw_action":"REMOVE","raw_line":"Remove 2620:FA:4000::-2620:FA:4000:FFFF:FFFF:FFFF:FFFF:FFFF","resource_type":"ipv6","resource":"2620:fa:4000::/48","start":"2620:fa:4000::","end":"2620:fa:4000:ffff:ffff:ffff:ffff:ffff","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":"2026-10-13T23:54:42+00:00","page":"https://rirtracker.com/ip/2620.fa.4000..-2620.fa.4000.ffff.ffff.ffff.ffff.ffff/#e-42b982c37ec01c72","report_page":"https://rirtracker.com/arin/reports/2025-12-18/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/2620.fa.4000..-2620.fa.4000.ffff.ffff.ffff.ffff.ffff.json","explanation":"ARIN's statistics show it reserved on 2025-12-17 and available on 2025-12-19. 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 2021-04-05, 1718 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-December/006214.html","retrieved_at":"2026-10-12T18:43:16+00:00","summary":"ARIN-Issued report for 2025-12-18: \"Remove 2620:FA:4000::-2620:FA:4000:FFFF:FFFF:FFFF:FFFF:FFFF\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20251217.gz","retrieved_at":"2026-10-13T00:11:58+00:00","summary":"ARIN delegated statistics 2025-12-17 (produced 2025-12-17T14:00:47+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20251219.gz","retrieved_at":"2026-10-13T00:12:03+00:00","summary":"ARIN delegated statistics 2025-12-19 (produced 2025-12-19T14:00:48+00:00), after the report: available"}]},{"event_id":"40e68ab3f652abea","registry":"ARIN","report_date":"2021-04-05","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"ipv6","resource":"2620:fa:4000::/48","start":"2620:fa:4000::","end":"2620:fa:4000: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":"2026-10-14T00:08:03+00:00","page":"https://rirtracker.com/ip/2620.fa.4000..-2620.fa.4000.ffff.ffff.ffff.ffff.ffff/#e-40e68ab3f652abea","report_page":"https://rirtracker.com/arin/reports/2021-04-05/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/2620.fa.4000..-2620.fa.4000.ffff.ffff.ffff.ffff.ffff.json","observed":"2620:fa:4000::/48 assigned on 2021-04-05, reserved on 2021-04-06","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":"2021-10-05","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 2016-02-16) on 2021-04-04 and reserved on 2021-04-06. 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 2021-10-05. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2021/delegated-arin-extended-20210406.gz","retrieved_at":"2026-10-12T22:40:47+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 2620:fa:4000::/48 assigned on 2021-04-05, reserved on 2021-04-06"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2021/delegated-arin-extended-20210404.gz","retrieved_at":"2026-10-12T22:40:42+00:00","summary":"ARIN delegated statistics 2021-04-04 (produced 2021-04-04T14:00:13+00:00), before the report: assigned (dated 2016-02-16)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2021/delegated-arin-extended-20210406.gz","retrieved_at":"2026-10-12T22:40:47+00:00","summary":"ARIN delegated statistics 2021-04-06 (produced 2021-04-06T14:00:13+00:00), after the report: reserved"}]},{"event_id":"65f418cfcd044a89","registry":"ARIN","report_date":"2016-02-16","source":"arin_issued","raw_action":"ADD","raw_line":"Add 2620:FA:4000::-2620:FA:4000:FFFF:FFFF:FFFF:FFFF:FFFF","resource_type":"ipv6","resource":"2620:fa:4000::/48","start":"2620:fa:4000::","end":"2620:fa:4000: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":"2026-10-13T23:51:32+00:00","page":"https://rirtracker.com/ip/2620.fa.4000..-2620.fa.4000.ffff.ffff.ffff.ffff.ffff/#e-65f418cfcd044a89","report_page":"https://rirtracker.com/arin/reports/2016-02-16/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/2620.fa.4000..-2620.fa.4000.ffff.ffff.ffff.ffff.ffff.json","explanation":"No transfer record matches. ARIN's statistics show it available on 2016-02-15 and assigned (dated 2016-02-16) on 2016-02-17. 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/2016-February/002623.html","retrieved_at":"2026-10-12T18:39:06+00:00","summary":"ARIN-Issued report for 2016-02-16: \"Add 2620:FA:4000::-2620:FA:4000:FFFF:FFFF:FFFF:FFFF:FFFF\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2016/delegated-arin-extended-20160215.gz","retrieved_at":"2026-10-12T21:06:05+00:00","summary":"ARIN delegated statistics 2016-02-15 (produced 2016-02-15T06:04:32+00:00), before the report: available"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2016/delegated-arin-extended-20160217.gz","retrieved_at":"2026-10-12T21:06:10+00:00","summary":"ARIN delegated statistics 2016-02-17 (produced 2016-02-17T06:04:27+00:00), after the report: assigned (dated 2016-02-16)"}]}],"classification_history":{"3004f7a36b172565":[{"raw_change_id":198387,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:08:56+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2025-12-22 and allocated (dated 2025-12-23) on 2025-12-24. The tracker saw this range released from hold on 2025-12-18 (2620:FA:4000::-2620:FA:4000:FFFF:FFFF:FFFF:FFFF:FFFF), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":198387,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:08:11+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2025-12-22 and allocated (dated 2025-12-23) on 2025-12-24. The tracker saw this range released from hold on 2025-12-18 (2620:FA:4000::-2620:FA:4000:FFFF:FFFF:FFFF:FFFF:FFFF), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":198387,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:51:07+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2025-12-22 and allocated (dated 2025-12-23) on 2025-12-24. The tracker saw this range released from hold on 2025-12-18 (2620:FA:4000::-2620:FA:4000:FFFF:FFFF:FFFF:FFFF:FFFF), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":198387,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:42+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2025-12-22 and allocated (dated 2025-12-23) on 2025-12-24. The tracker saw this range released from hold on 2025-12-18 (2620:FA:4000::-2620:FA:4000:FFFF:FFFF:FFFF:FFFF:FFFF), so it appears to have been issued again from ARIN's pool."}],"42b982c37ec01c72":[{"raw_change_id":198236,"classification_code":"HOLD_RELEASED","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:08:54+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2025-12-17 and available on 2025-12-19. 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 2021-04-05, 1718 days earlier. That is ARIN's own label: whether and when it is reissued is not confirmed."},{"raw_change_id":198236,"classification_code":"HOLD_RELEASED","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:08:11+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2025-12-17 and available on 2025-12-19. 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 2021-04-05, 1718 days earlier. That is ARIN's own label: whether and when it is reissued is not confirmed."},{"raw_change_id":198236,"classification_code":"HOLD_RELEASED","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:51:06+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2025-12-17 and available on 2025-12-19. 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 2021-04-05, 1718 days earlier. That is ARIN's own label: whether and when it is reissued is not confirmed."},{"raw_change_id":198236,"classification_code":"HOLD_RELEASED","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:42+00:00","current":1,"public_explanation":"ARIN's statistics show it reserved on 2025-12-17 and available on 2025-12-19. 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 2021-04-05, 1718 days earlier. That is ARIN's own label: whether and when it is reissued is not confirmed."}],"40e68ab3f652abea":[{"raw_change_id":410835,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T05:44:48+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 2016-02-16) on 2021-04-04 and reserved on 2021-04-06. 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 2021-10-05. This does not confirm availability."},{"raw_change_id":410835,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:19:32+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 2016-02-16) on 2021-04-04 and reserved on 2021-04-06. 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 2021-10-05. This does not confirm availability."},{"raw_change_id":410835,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T15:03:22+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 2016-02-16) on 2021-04-04 and reserved on 2021-04-06. 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 2021-10-05. This does not confirm availability."},{"raw_change_id":410835,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:08:03+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 2016-02-16) on 2021-04-04 and reserved on 2021-04-06. 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 2021-10-05. This does not confirm availability."}],"65f418cfcd044a89":[{"raw_change_id":140862,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:34:49+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2016-02-15 and assigned (dated 2016-02-16) on 2016-02-17. 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":140862,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:05:49+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2016-02-15 and assigned (dated 2016-02-16) on 2016-02-17. 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":140862,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:48:27+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2016-02-15 and assigned (dated 2016-02-16) on 2016-02-17. 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":140862,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:51:32+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2016-02-15 and assigned (dated 2016-02-16) on 2016-02-17. 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 2025-12-23)"}}