{"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":"2607:f0f0::/32","resource_type":"ipv6","page":"https://rirtracker.com/ip/2607.f0f0..-2607.f0f0.ffff.ffff.ffff.ffff.ffff.ffff/","statistics_now":{"registry":"ARIN","status":"available"},"current_holder":{"rir":"ARIN","org":null,"how":"ARIN's latest statistics"},"rdap_snapshots":[],"transfers":[],"events":[{"event_id":"36deeb6e1415234b","registry":"ARIN","report_date":"2012-11-26","source":"arin_issued","raw_action":"REMOVE","raw_line":"Remove 2607:F0F0::-2607:F0F0:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF","resource_type":"ipv6","resource":"2607:f0f0::/32","start":"2607:f0f0::","end":"2607:f0f0:ffff:ffff:ffff:ffff:ffff:ffff","classification":"UNRESOLVED","classification_label":"Unresolved change","confidence":"OBSERVED_ONLY","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"Inventory effect unknown","inventory_effect_code":"UNKNOWN","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:51:02+00:00","page":"https://rirtracker.com/ip/2607.f0f0..-2607.f0f0.ffff.ffff.ffff.ffff.ffff.ffff/#e-36deeb6e1415234b","report_page":"https://rirtracker.com/arin/reports/2012-11-26/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/2607.f0f0..-2607.f0f0.ffff.ffff.ffff.ffff.ffff.ffff.json","explanation":"ARIN-Issued says \"Remove\", but ARIN's statistics show it not issued on 2012-11-25 and not issued on 2012-11-27. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registry's pool records from that time aren't public, so the tracker can't tell what was removed.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2012-November/001446.html","retrieved_at":"2026-10-12T18:37:44+00:00","summary":"ARIN-Issued report for 2012-11-26: \"Remove 2607:F0F0::-2607:F0F0:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2012/delegated-arin-20121125.gz","retrieved_at":"2026-10-12T19:51:28+00:00","summary":"ARIN delegated statistics 2012-11-25, before the report: not issued"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2012/delegated-arin-20121127.gz","retrieved_at":"2026-10-12T19:51:33+00:00","summary":"ARIN delegated statistics 2012-11-27, after the report: not issued"}]},{"event_id":"30830590c0aedad7","registry":"ARIN","report_date":"2012-08-23","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"ipv6","resource":"2607:f0f0::/32","start":"2607:f0f0::","end":"2607:f0f0: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":"2026-10-13T23:57:40+00:00","page":"https://rirtracker.com/ip/2607.f0f0..-2607.f0f0.ffff.ffff.ffff.ffff.ffff.ffff/#e-30830590c0aedad7","report_page":"https://rirtracker.com/arin/reports/2012-08-23/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/2607.f0f0..-2607.f0f0.ffff.ffff.ffff.ffff.ffff.ffff.json","observed":"2607:f0f0::/32 allocated on 2012-08-23, not listed on 2012-08-24","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":"2013-02-23","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 2007-08-08) on 2012-08-22 and not issued on 2012-08-24. (Until 2013-03-05, ARIN's statistics list only what's issued.) 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 2013-02-23. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2012/delegated-arin-20120824.gz","retrieved_at":"2026-10-12T19:47:37+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 2607:f0f0::/32 allocated on 2012-08-23, not listed on 2012-08-24"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2012/delegated-arin-20120822.gz","retrieved_at":"2026-10-12T19:47:29+00:00","summary":"ARIN delegated statistics 2012-08-22, before the report: allocated (dated 2007-08-08)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2012/delegated-arin-20120824.gz","retrieved_at":"2026-10-12T19:47:37+00:00","summary":"ARIN delegated statistics 2012-08-24, after the report: not issued"}]}],"classification_history":{"36deeb6e1415234b":[{"raw_change_id":127488,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.0","classified_at":"2026-10-13T03:18:55+00:00","current":0,"public_explanation":"ARIN-Issued says \"Remove\", but ARIN's statistics show it not issued on 2012-11-25 and not issued on 2012-11-27. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registry's pool records from that time aren't public, so the tracker can't tell what was removed."},{"raw_change_id":127488,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.1","classified_at":"2026-10-13T08:05:26+00:00","current":0,"public_explanation":"ARIN-Issued says \"Remove\", but ARIN's statistics show it not issued on 2012-11-25 and not issued on 2012-11-27. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registry's pool records from that time aren't public, so the tracker can't tell what was removed."},{"raw_change_id":127488,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.2","classified_at":"2026-10-13T14:48:01+00:00","current":0,"public_explanation":"ARIN-Issued says \"Remove\", but ARIN's statistics show it not issued on 2012-11-25 and not issued on 2012-11-27. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registry's pool records from that time aren't public, so the tracker can't tell what was removed."},{"raw_change_id":127488,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.4.0","classified_at":"2026-10-13T23:51:02+00:00","current":1,"public_explanation":"ARIN-Issued says \"Remove\", but ARIN's statistics show it not issued on 2012-11-25 and not issued on 2012-11-27. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registry's pool records from that time aren't public, so the tracker can't tell what was removed."}],"30830590c0aedad7":[{"raw_change_id":250263,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:30:55+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 2007-08-08) on 2012-08-22 and not issued on 2012-08-24. (Until 2013-03-05, ARIN's statistics list only what's issued.) 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 2013-02-23. This does not confirm availability."},{"raw_change_id":250263,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:10:46+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 2007-08-08) on 2012-08-22 and not issued on 2012-08-24. (Until 2013-03-05, ARIN's statistics list only what's issued.) 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 2013-02-23. This does not confirm availability."},{"raw_change_id":250263,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:53:56+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 2007-08-08) on 2012-08-22 and not issued on 2012-08-24. (Until 2013-03-05, ARIN's statistics list only what's issued.) 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 2013-02-23. This does not confirm availability."},{"raw_change_id":250263,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:57:40+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 2007-08-08) on 2012-08-22 and not issued on 2012-08-24. (Until 2013-03-05, ARIN's statistics list only what's issued.) 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 2013-02-23. This does not confirm availability."}]},"arin_statistics_now":{"status":"available"}}