{"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":"170.205.0.0/18","resource_type":"ipv4","page":"https://rirtracker.com/ip/170.205.0.0-170.205.63.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2023-07-05), allocated (dated 2023-07-07), allocated (dated 2023-07-11), allocated (dated 2023-07-13), allocated (dated 2023-08-01)"},"current_holder":{"rir":"ARIN","org":null,"how":"ARIN's latest statistics"},"rdap_snapshots":[],"transfers":[],"events":[{"event_id":"cd50362d57f9d1f5","registry":"ARIN","report_date":"2023-07-05","source":"arin_issued","raw_action":"REMOVE","raw_line":"Remove 170.205.0.0-170.205.63.255","resource_type":"ipv4","resource":"170.205.0.0/18","start":"170.205.0.0","end":"170.205.63.255","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":"2026-10-13T23:53:45+00:00","page":"https://rirtracker.com/ip/170.205.0.0-170.205.63.255/#e-cd50362d57f9d1f5","report_page":"https://rirtracker.com/arin/reports/2023-07-05/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/170.205.0.0-170.205.63.255.json","explanation":"ARIN's statistics show it reserved on 2023-07-04 and allocated (dated 2023-07-05), reserved on 2023-07-06. ARIN removed its own pool record for this range as part of issuing it: the same report adds 170.205.0.0-170.205.3.255, 170.205.8.0-170.205.11.255, 170.205.20.0-170.205.23.255, 170.205.24.0-170.205.27.255 and 7 more. The issuance is explained on those lines.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2023-July/005318.html","retrieved_at":"2026-10-12T18:42:14+00:00","summary":"ARIN-Issued report for 2023-07-05: \"Remove 170.205.0.0-170.205.63.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2023/delegated-arin-extended-20230704.gz","retrieved_at":"2026-10-12T23:23:24+00:00","summary":"ARIN delegated statistics 2023-07-04 (produced 2023-07-04T13:00:10+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2023/delegated-arin-extended-20230706.gz","retrieved_at":"2026-10-12T23:23:29+00:00","summary":"ARIN delegated statistics 2023-07-06 (produced 2023-07-06T13:00:11+00:00), after the report: allocated (dated 2023-07-05), reserved"}]},{"event_id":"e1652e5ef72277de","registry":"ARIN","report_date":"2022-10-10","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"ipv4","resource":"170.205.0.0/18","start":"170.205.0.0","end":"170.205.63.255","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":"2026-10-14T00:09:50+00:00","page":"https://rirtracker.com/ip/170.205.0.0-170.205.63.255/#e-e1652e5ef72277de","report_page":"https://rirtracker.com/arin/reports/2022-10-10/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/170.205.0.0-170.205.63.255.json","observed":"170.205.0.0/18 allocated on 2022-10-10, reserved on 2022-10-11","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":"2022-12-09","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 1994-12-01) on 2022-10-09 and reserved on 2022-10-11. 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 2022-12-09. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2022/delegated-arin-extended-20221011.gz","retrieved_at":"2026-10-12T23:09:12+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 170.205.0.0/18 allocated on 2022-10-10, reserved on 2022-10-11"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2022/delegated-arin-extended-20221009.gz","retrieved_at":"2026-10-12T23:09:07+00:00","summary":"ARIN delegated statistics 2022-10-09 (produced 2022-10-09T13:00:10+00:00), before the report: allocated (dated 1994-12-01)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2022/delegated-arin-extended-20221011.gz","retrieved_at":"2026-10-12T23:09:12+00:00","summary":"ARIN delegated statistics 2022-10-11 (produced 2022-10-11T13:00:10+00:00), after the report: reserved"}]}],"classification_history":{"cd50362d57f9d1f5":[{"raw_change_id":182334,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:59:26+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2023-07-04 and allocated (dated 2023-07-05), reserved on 2023-07-06. ARIN removed its own pool record for this range as part of issuing it: the same report adds 170.205.0.0-170.205.3.255, 170.205.8.0-170.205.11.255, 170.205.20.0-170.205.23.255, 170.205.24.0-170.205.27.255 and 7 more. The issuance is explained on those lines."},{"raw_change_id":182334,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:07:29+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2023-07-04 and allocated (dated 2023-07-05), reserved on 2023-07-06. ARIN removed its own pool record for this range as part of issuing it: the same report adds 170.205.0.0-170.205.3.255, 170.205.8.0-170.205.11.255, 170.205.20.0-170.205.23.255, 170.205.24.0-170.205.27.255 and 7 more. The issuance is explained on those lines."},{"raw_change_id":182334,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:50:19+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2023-07-04 and allocated (dated 2023-07-05), reserved on 2023-07-06. ARIN removed its own pool record for this range as part of issuing it: the same report adds 170.205.0.0-170.205.3.255, 170.205.8.0-170.205.11.255, 170.205.20.0-170.205.23.255, 170.205.24.0-170.205.27.255 and 7 more. The issuance is explained on those lines."},{"raw_change_id":182334,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:53:45+00:00","current":1,"public_explanation":"ARIN's statistics show it reserved on 2023-07-04 and allocated (dated 2023-07-05), reserved on 2023-07-06. ARIN removed its own pool record for this range as part of issuing it: the same report adds 170.205.0.0-170.205.3.255, 170.205.8.0-170.205.11.255, 170.205.20.0-170.205.23.255, 170.205.24.0-170.205.27.255 and 7 more. The issuance is explained on those lines."}],"e1652e5ef72277de":[{"raw_change_id":435191,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T05:54:13+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 1994-12-01) on 2022-10-09 and reserved on 2022-10-11. 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 2022-12-09. This does not confirm availability."},{"raw_change_id":435191,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:21:01+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 1994-12-01) on 2022-10-09 and reserved on 2022-10-11. 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 2022-12-09. This does not confirm availability."},{"raw_change_id":435191,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T15:04:58+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 1994-12-01) on 2022-10-09 and reserved on 2022-10-11. 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 2022-12-09. This does not confirm availability."},{"raw_change_id":435191,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:09:50+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 1994-12-01) on 2022-10-09 and reserved on 2022-10-11. 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 2022-12-09. This does not confirm availability."}]},"arin_statistics_now":{"status":"allocated (dated 2023-07-05), allocated (dated 2023-07-07), allocated (dated 2023-07-11), allocated (dated 2023-07-13), allocated (dated 2023-08-01)"}}