{"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":"209.135.160.0/19","resource_type":"ipv4","page":"https://rirtracker.com/ip/209.135.160.0-209.135.191.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2024-04-02), allocated (dated 2024-04-03), allocated (dated 2024-04-15), allocated (dated 2024-04-30), allocated (dated 2024-06-04)"},"current_holder":{"rir":"ARIN","org":null,"how":"ARIN's latest statistics"},"rdap_snapshots":[],"transfers":[],"events":[{"event_id":"c97b5c47e27a50a6","registry":"ARIN","report_date":"2024-04-02","source":"arin_issued","raw_action":"REMOVE","raw_line":"Remove 209.135.160.0-209.135.191.255","resource_type":"ipv4","resource":"209.135.160.0/19","start":"209.135.160.0","end":"209.135.191.255","classification":"POOL_RECORD_CHANGE","classification_label":"Change to ARIN's own pool record","confidence":"OBSERVED_ONLY","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":"2026-10-13T23:54:02+00:00","page":"https://rirtracker.com/ip/209.135.160.0-209.135.191.255/#e-c97b5c47e27a50a6","report_page":"https://rirtracker.com/arin/reports/2024-04-02/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/209.135.160.0-209.135.191.255.json","explanation":"ARIN's statistics show it reserved on 2024-04-01 and allocated (dated 2024-04-02), reserved on 2024-04-03. ARIN removed its own pool record for this range as part of issuing it: the same report adds 209.135.160.0-209.135.163.255, 209.135.164.0-209.135.167.255, 209.135.168.0-209.135.171.255, 209.135.176.0-209.135.179.255 and 2 more. The issuance is explained on those lines. Another change to this range was reported the day before or after (2024-04-03: Remove 209.135.180.0-209.135.183.255; 2024-04-03: Add 209.135.180.0-209.135.183.255), so the before-and-after statistics may include it.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2024-April/005590.html","retrieved_at":"2026-10-12T18:42:33+00:00","summary":"ARIN-Issued report for 2024-04-02: \"Remove 209.135.160.0-209.135.191.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20240401.gz","retrieved_at":"2026-10-12T23:37:42+00:00","summary":"ARIN delegated statistics 2024-04-01 (produced 2024-04-01T13:00:49+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20240403.gz","retrieved_at":"2026-10-12T23:37:46+00:00","summary":"ARIN delegated statistics 2024-04-03 (produced 2024-04-03T13:00:50+00:00), after the report: allocated (dated 2024-04-02), reserved"}]},{"event_id":"1670676e9e91b51f","registry":"ARIN","report_date":"2014-08-05","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"ipv4","resource":"209.135.160.0/19","start":"209.135.160.0","end":"209.135.191.255","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":"2026-10-13T23:59:58+00:00","page":"https://rirtracker.com/ip/209.135.160.0-209.135.191.255/#e-1670676e9e91b51f","report_page":"https://rirtracker.com/arin/reports/2014-08-05/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/209.135.160.0-209.135.191.255.json","observed":"209.135.160.0/19 assigned on 2014-08-05, reserved on 2014-08-06","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":"2014-10-04","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 2000-03-28) on 2014-08-04 and reserved on 2014-08-06. 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 2014-10-04. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2014/delegated-arin-extended-20140806.gz","retrieved_at":"2026-10-12T20:39:04+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 209.135.160.0/19 assigned on 2014-08-05, reserved on 2014-08-06"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2014/delegated-arin-extended-20140804.gz","retrieved_at":"2026-10-12T20:38:59+00:00","summary":"ARIN delegated statistics 2014-08-04 (produced 2014-08-04T05:04:41+00:00), before the report: assigned (dated 2000-03-28)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2014/delegated-arin-extended-20140806.gz","retrieved_at":"2026-10-12T20:39:04+00:00","summary":"ARIN delegated statistics 2014-08-06 (produced 2014-08-06T05:04:56+00:00), after the report: reserved"}]}],"classification_history":{"c97b5c47e27a50a6":[{"raw_change_id":186482,"classification_code":"POOL_RECORD_CHANGE","confidence":"OBSERVED_ONLY","classifier_version":"1.3.0","classified_at":"2026-10-13T04:01:44+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2024-04-01 and allocated (dated 2024-04-02), reserved on 2024-04-03. ARIN removed its own pool record for this range as part of issuing it: the same report adds 209.135.160.0-209.135.163.255, 209.135.164.0-209.135.167.255, 209.135.168.0-209.135.171.255, 209.135.176.0-209.135.179.255 and 2 more. The issuance is explained on those lines. Another change to this range was reported the day before or after (2024-04-03: Remove 209.135.180.0-209.135.183.255; 2024-04-03: Add 209.135.180.0-209.135.183.255), so the before-and-after statistics may include it."},{"raw_change_id":186482,"classification_code":"POOL_RECORD_CHANGE","confidence":"OBSERVED_ONLY","classifier_version":"1.3.1","classified_at":"2026-10-13T08:07:41+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2024-04-01 and allocated (dated 2024-04-02), reserved on 2024-04-03. ARIN removed its own pool record for this range as part of issuing it: the same report adds 209.135.160.0-209.135.163.255, 209.135.164.0-209.135.167.255, 209.135.168.0-209.135.171.255, 209.135.176.0-209.135.179.255 and 2 more. The issuance is explained on those lines. Another change to this range was reported the day before or after (2024-04-03: Remove 209.135.180.0-209.135.183.255; 2024-04-03: Add 209.135.180.0-209.135.183.255), so the before-and-after statistics may include it."},{"raw_change_id":186482,"classification_code":"POOL_RECORD_CHANGE","confidence":"OBSERVED_ONLY","classifier_version":"1.3.2","classified_at":"2026-10-13T14:50:33+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2024-04-01 and allocated (dated 2024-04-02), reserved on 2024-04-03. ARIN removed its own pool record for this range as part of issuing it: the same report adds 209.135.160.0-209.135.163.255, 209.135.164.0-209.135.167.255, 209.135.168.0-209.135.171.255, 209.135.176.0-209.135.179.255 and 2 more. The issuance is explained on those lines. Another change to this range was reported the day before or after (2024-04-03: Remove 209.135.180.0-209.135.183.255; 2024-04-03: Add 209.135.180.0-209.135.183.255), so the before-and-after statistics may include it."},{"raw_change_id":186482,"classification_code":"POOL_RECORD_CHANGE","confidence":"OBSERVED_ONLY","classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:02+00:00","current":1,"public_explanation":"ARIN's statistics show it reserved on 2024-04-01 and allocated (dated 2024-04-02), reserved on 2024-04-03. ARIN removed its own pool record for this range as part of issuing it: the same report adds 209.135.160.0-209.135.163.255, 209.135.164.0-209.135.167.255, 209.135.168.0-209.135.171.255, 209.135.176.0-209.135.179.255 and 2 more. The issuance is explained on those lines. Another change to this range was reported the day before or after (2024-04-03: Remove 209.135.180.0-209.135.183.255; 2024-04-03: Add 209.135.180.0-209.135.183.255), so the before-and-after statistics may include it."}],"1670676e9e91b51f":[{"raw_change_id":287789,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:50:34+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 2000-03-28) on 2014-08-04 and reserved on 2014-08-06. 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 2014-10-04. This does not confirm availability."},{"raw_change_id":287789,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:12:46+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 assigned (dated 2000-03-28) on 2014-08-04 and reserved on 2014-08-06. 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 2014-10-04. This does not confirm availability."},{"raw_change_id":287789,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:56:05+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 2000-03-28) on 2014-08-04 and reserved on 2014-08-06. 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 2014-10-04. This does not confirm availability."},{"raw_change_id":287789,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:59:58+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 2000-03-28) on 2014-08-04 and reserved on 2014-08-06. 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 2014-10-04. This does not confirm availability."}]},"arin_statistics_now":{"status":"allocated (dated 2024-04-02), allocated (dated 2024-04-03), allocated (dated 2024-04-15), allocated (dated 2024-04-30), allocated (dated 2024-06-04)"}}