{"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":"199.101.64.0/21","resource_type":"ipv4","page":"https://rirtracker.com/ip/199.101.64.0-199.101.71.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2025-04-03)"},"current_holder":{"rir":"ARIN","org":null,"how":"ARIN's latest statistics"},"rdap_snapshots":[],"transfers":[],"events":[{"event_id":"740b9b44fd5210d8","registry":"ARIN","report_date":"2025-04-03","source":"arin_issued","raw_action":"REMOVE","raw_line":"Remove 199.101.64.0-199.101.71.255","resource_type":"ipv4","resource":"199.101.64.0/21","start":"199.101.64.0","end":"199.101.71.255","classification":"POOL_RECORD_CHANGE","classification_label":"Change to ARIN's own pool record","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"Part of the issuance reported the same day","inventory_effect_code":"PAIRED","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:26+00:00","page":"https://rirtracker.com/ip/199.101.64.0-199.101.71.255/#e-740b9b44fd5210d8","report_page":"https://rirtracker.com/arin/reports/2025-04-03/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/199.101.64.0-199.101.71.255.json","explanation":"ARIN's statistics show it reserved on 2025-04-02 and allocated (dated 2025-04-03) on 2025-04-04. ARIN removed its own pool record for this range as part of issuing it: the same report adds 199.101.64.0-199.101.67.255, 199.101.68.0-199.101.71.255. The issuance is explained on those lines.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2025-April/005955.html","retrieved_at":"2026-10-12T18:42:59+00:00","summary":"ARIN-Issued report for 2025-04-03: \"Remove 199.101.64.0-199.101.71.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20250402.gz","retrieved_at":"2026-10-12T23:57:21+00:00","summary":"ARIN delegated statistics 2025-04-02 (produced 2025-04-02T13:01:10+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20250404.gz","retrieved_at":"2026-10-12T23:57:38+00:00","summary":"ARIN delegated statistics 2025-04-04 (produced 2025-04-04T13:01:09+00:00), after the report: allocated (dated 2025-04-03)"}]},{"event_id":"84b3ece0e0c0becd","registry":"ARIN","report_date":"2021-08-09","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"ipv4","resource":"199.101.64.0/21","start":"199.101.64.0","end":"199.101.71.255","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":"2026-10-14T00:08:23+00:00","page":"https://rirtracker.com/ip/199.101.64.0-199.101.71.255/#e-84b3ece0e0c0becd","report_page":"https://rirtracker.com/arin/reports/2021-08-09/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/199.101.64.0-199.101.71.255.json","observed":"199.101.64.0/21 allocated on 2021-08-09, reserved on 2021-08-10","hold":{"hold_rule_source_url":"https://www.arin.net/resources/guide/request/#reissuing-returned-revoked-and-reclaimed-resources","hold_rule_days":60,"estimated_hold_end":"2021-10-08","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 2012-02-10) on 2021-08-08 and reserved on 2021-08-10. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 space for 60 days before reissuing it, so the estimated hold end is 2021-10-08. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2021/delegated-arin-extended-20210810.gz","retrieved_at":"2026-10-12T22:47:02+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 199.101.64.0/21 allocated on 2021-08-09, reserved on 2021-08-10"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2021/delegated-arin-extended-20210808.gz","retrieved_at":"2026-10-12T22:46:57+00:00","summary":"ARIN delegated statistics 2021-08-08 (produced 2021-08-08T14:00:13+00:00), before the report: allocated (dated 2012-02-10)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2021/delegated-arin-extended-20210810.gz","retrieved_at":"2026-10-12T22:47:02+00:00","summary":"ARIN delegated statistics 2021-08-10 (produced 2021-08-10T14:00:14+00:00), after the report: reserved"}]},{"event_id":"27260477176ea8de","registry":"ARIN","report_date":"2012-02-10","source":"arin_issued","raw_action":"ADD","raw_line":"Add 199.101.64.0-199.101.71.255","resource_type":"ipv4","resource":"199.101.64.0/21","start":"199.101.64.0","end":"199.101.71.255","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":"2026-10-13T23:50:58+00:00","page":"https://rirtracker.com/ip/199.101.64.0-199.101.71.255/#e-27260477176ea8de","report_page":"https://rirtracker.com/arin/reports/2012-02-10/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/199.101.64.0-199.101.71.255.json","explanation":"No transfer record matches. ARIN's statistics show it not issued on 2012-02-09 and allocated (dated 2012-02-10) on 2012-02-11. (Until 2013-03-05, ARIN's statistics list only what's issued.) 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/2012-February/001156.html","retrieved_at":"2026-10-12T18:37:25+00:00","summary":"ARIN-Issued report for 2012-02-10: \"Add 199.101.64.0-199.101.71.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2012/delegated-arin-20120209.gz","retrieved_at":"2026-10-12T19:31:39+00:00","summary":"ARIN delegated statistics 2012-02-09, before the report: not issued"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2012/delegated-arin-20120211.gz","retrieved_at":"2026-10-12T19:31:46+00:00","summary":"ARIN delegated statistics 2012-02-11, after the report: allocated (dated 2012-02-10)"}]}],"classification_history":{"740b9b44fd5210d8":[{"raw_change_id":193464,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:06:19+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2025-04-02 and allocated (dated 2025-04-03) on 2025-04-04. ARIN removed its own pool record for this range as part of issuing it: the same report adds 199.101.64.0-199.101.67.255, 199.101.68.0-199.101.71.255. The issuance is explained on those lines."},{"raw_change_id":193464,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:07:59+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2025-04-02 and allocated (dated 2025-04-03) on 2025-04-04. ARIN removed its own pool record for this range as part of issuing it: the same report adds 199.101.64.0-199.101.67.255, 199.101.68.0-199.101.71.255. The issuance is explained on those lines."},{"raw_change_id":193464,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:50:53+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2025-04-02 and allocated (dated 2025-04-03) on 2025-04-04. ARIN removed its own pool record for this range as part of issuing it: the same report adds 199.101.64.0-199.101.67.255, 199.101.68.0-199.101.71.255. The issuance is explained on those lines."},{"raw_change_id":193464,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:26+00:00","current":1,"public_explanation":"ARIN's statistics show it reserved on 2025-04-02 and allocated (dated 2025-04-03) on 2025-04-04. ARIN removed its own pool record for this range as part of issuing it: the same report adds 199.101.64.0-199.101.67.255, 199.101.68.0-199.101.71.255. The issuance is explained on those lines."}],"84b3ece0e0c0becd":[{"raw_change_id":415228,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T05:46:36+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 2012-02-10) on 2021-08-08 and reserved on 2021-08-10. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 space for 60 days before reissuing it, so the earliest estimated hold expiration is 2021-10-08. This does not confirm availability."},{"raw_change_id":415228,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:19:48+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 allocated (dated 2012-02-10) on 2021-08-08 and reserved on 2021-08-10. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 space for 60 days before reissuing it, so the earliest estimated hold expiration is 2021-10-08. This does not confirm availability."},{"raw_change_id":415228,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T15:03:40+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 2012-02-10) on 2021-08-08 and reserved on 2021-08-10. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 space for 60 days before reissuing it, so the earliest estimated hold expiration is 2021-10-08. This does not confirm availability."},{"raw_change_id":415228,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:08:23+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 2012-02-10) on 2021-08-08 and reserved on 2021-08-10. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 space for 60 days before reissuing it, so the estimated hold end is 2021-10-08. This does not confirm availability."}],"27260477176ea8de":[{"raw_change_id":125443,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:16:16+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it not issued on 2012-02-09 and allocated (dated 2012-02-10) on 2012-02-11. (Until 2013-03-05, ARIN's statistics list only what's issued.) The tracker saw this range released from hold on 2011-06-06 (69.57.208.0-216.250.127.255), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":125443,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:05:23+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it not issued on 2012-02-09 and allocated (dated 2012-02-10) on 2012-02-11. (Until 2013-03-05, ARIN's statistics list only what's issued.) The tracker saw this range released from hold on 2011-06-06 (69.57.208.0-216.250.127.255), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":125443,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:47:57+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it not issued on 2012-02-09 and allocated (dated 2012-02-10) on 2012-02-11. (Until 2013-03-05, ARIN's statistics list only what's issued.) 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":125443,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:50:58+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it not issued on 2012-02-09 and allocated (dated 2012-02-10) on 2012-02-11. (Until 2013-03-05, ARIN's statistics list only what's issued.) 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 2025-04-03)"}}