{"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":"204.13.159.0/24","resource_type":"ipv4","page":"https://rirtracker.com/ip/204.13.159.0-204.13.159.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2018-02-13)"},"current_holder":{"rir":"ARIN","org":null,"how":"ARIN's latest statistics"},"rdap_snapshots":[],"transfers":[],"events":[{"event_id":"fb70f898fb24d058","registry":"ARIN","report_date":"2024-07-08","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"ipv4","resource":"204.13.159.0/24","start":"204.13.159.0","end":"204.13.159.255","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":"2026-10-14T00:12:09+00:00","page":"https://rirtracker.com/ip/204.13.159.0-204.13.159.255/#e-fb70f898fb24d058","report_page":"https://rirtracker.com/arin/reports/2024-07-08/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/204.13.159.0-204.13.159.255.json","observed":"204.13.159.0/24 allocated on 2024-07-08, reserved on 2024-07-09","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":"2024-09-06","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 2018-02-13) on 2024-07-07 and reserved on 2024-07-09. 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 2024-09-06. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20240709.gz","retrieved_at":"2026-10-12T23:42:59+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 204.13.159.0/24 allocated on 2024-07-08, reserved on 2024-07-09"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20240707.gz","retrieved_at":"2026-10-12T23:42:53+00:00","summary":"ARIN delegated statistics 2024-07-07 (produced 2024-07-07T13:00:44+00:00), before the report: allocated (dated 2018-02-13)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20240709.gz","retrieved_at":"2026-10-12T23:42:59+00:00","summary":"ARIN delegated statistics 2024-07-09 (produced 2024-07-09T13:00:45+00:00), after the report: reserved"}]},{"event_id":"b4631797f5c6cbb7","registry":"ARIN","report_date":"2018-02-13","source":"arin_issued","raw_action":"ADD","raw_line":"Add 204.13.159.0-204.13.159.255","resource_type":"ipv4","resource":"204.13.159.0/24","start":"204.13.159.0","end":"204.13.159.255","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":"2026-10-13T23:52:05+00:00","page":"https://rirtracker.com/ip/204.13.159.0-204.13.159.255/#e-b4631797f5c6cbb7","report_page":"https://rirtracker.com/arin/reports/2018-02-13/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/204.13.159.0-204.13.159.255.json","explanation":"No transfer record matches. ARIN's statistics show it reserved on 2018-02-12 and assigned (dated 2018-02-13) on 2018-02-14. The tracker saw this range released from hold on 2018-01-13 (204.13.156.0-204.13.159.255), so it appears to have been issued again from ARIN's pool.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2018-February/003352.html","retrieved_at":"2026-10-12T18:39:57+00:00","summary":"ARIN-Issued report for 2018-02-13: \"Add 204.13.159.0-204.13.159.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20180212.gz","retrieved_at":"2026-10-12T21:41:41+00:00","summary":"ARIN delegated statistics 2018-02-12 (produced 2018-02-12T06:11:05+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20180214.gz","retrieved_at":"2026-10-12T21:41:46+00:00","summary":"ARIN delegated statistics 2018-02-14 (produced 2018-02-14T06:09:04+00:00), after the report: assigned (dated 2018-02-13)"}]},{"event_id":"038a13c0c11321cf","registry":"ARIN","report_date":"2018-02-13","source":"arin_issued","raw_action":"REMOVE","raw_line":"Remove 204.13.159.0-204.13.159.255","resource_type":"ipv4","resource":"204.13.159.0/24","start":"204.13.159.0","end":"204.13.159.255","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":"2026-10-13T23:52:05+00:00","page":"https://rirtracker.com/ip/204.13.159.0-204.13.159.255/#e-038a13c0c11321cf","report_page":"https://rirtracker.com/arin/reports/2018-02-13/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/204.13.159.0-204.13.159.255.json","explanation":"ARIN's statistics show it reserved on 2018-02-12 and assigned (dated 2018-02-13) on 2018-02-14. ARIN removed its own pool record for this range as part of issuing it: the same report adds 204.13.159.0-204.13.159.255. The issuance is explained on that line.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2018-February/003352.html","retrieved_at":"2026-10-12T18:39:57+00:00","summary":"ARIN-Issued report for 2018-02-13: \"Remove 204.13.159.0-204.13.159.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20180212.gz","retrieved_at":"2026-10-12T21:41:41+00:00","summary":"ARIN delegated statistics 2018-02-12 (produced 2018-02-12T06:11:05+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20180214.gz","retrieved_at":"2026-10-12T21:41:46+00:00","summary":"ARIN delegated statistics 2018-02-14 (produced 2018-02-14T06:09:04+00:00), after the report: assigned (dated 2018-02-13)"}]}],"classification_history":{"fb70f898fb24d058":[{"raw_change_id":467159,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T06:08:35+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 2018-02-13) on 2024-07-07 and reserved on 2024-07-09. 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 2024-09-06. This does not confirm availability."},{"raw_change_id":467159,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:22:53+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 2018-02-13) on 2024-07-07 and reserved on 2024-07-09. 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 2024-09-06. This does not confirm availability."},{"raw_change_id":467159,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T15:06:58+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 2018-02-13) on 2024-07-07 and reserved on 2024-07-09. 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 2024-09-06. This does not confirm availability."},{"raw_change_id":467159,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:12:09+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 2018-02-13) on 2024-07-07 and reserved on 2024-07-09. 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 2024-09-06. This does not confirm availability."}],"b4631797f5c6cbb7":[{"raw_change_id":153366,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:40:32+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2018-02-12 and assigned (dated 2018-02-13) on 2018-02-14. The tracker saw this range released from hold on 2018-01-13 (204.13.156.0-204.13.159.255), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":153366,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:06:14+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2018-02-12 and assigned (dated 2018-02-13) on 2018-02-14. The tracker saw this range released from hold on 2018-01-13 (204.13.156.0-204.13.159.255), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":153366,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:48:54+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2018-02-12 and assigned (dated 2018-02-13) on 2018-02-14. The tracker saw this range released from hold on 2018-01-13 (204.13.156.0-204.13.159.255), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":153366,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:52:05+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2018-02-12 and assigned (dated 2018-02-13) on 2018-02-14. The tracker saw this range released from hold on 2018-01-13 (204.13.156.0-204.13.159.255), so it appears to have been issued again from ARIN's pool."}],"038a13c0c11321cf":[{"raw_change_id":153357,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:40:32+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2018-02-12 and assigned (dated 2018-02-13) on 2018-02-14. ARIN removed its own pool record for this range as part of issuing it: the same report adds 204.13.159.0-204.13.159.255. The issuance is explained on that line."},{"raw_change_id":153357,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:06:14+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2018-02-12 and assigned (dated 2018-02-13) on 2018-02-14. ARIN removed its own pool record for this range as part of issuing it: the same report adds 204.13.159.0-204.13.159.255. The issuance is explained on that line."},{"raw_change_id":153357,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:48:54+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2018-02-12 and assigned (dated 2018-02-13) on 2018-02-14. ARIN removed its own pool record for this range as part of issuing it: the same report adds 204.13.159.0-204.13.159.255. The issuance is explained on that line."},{"raw_change_id":153357,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:52:05+00:00","current":1,"public_explanation":"ARIN's statistics show it reserved on 2018-02-12 and assigned (dated 2018-02-13) on 2018-02-14. ARIN removed its own pool record for this range as part of issuing it: the same report adds 204.13.159.0-204.13.159.255. The issuance is explained on that line."}]},"arin_statistics_now":{"status":"allocated (dated 2018-02-13)"}}