{"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":"160.20.251.0/24","resource_type":"ipv4","page":"https://rirtracker.com/ip/160.20.251.0-160.20.251.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2018-09-06)"},"current_holder":{"rir":"ARIN","org":null,"how":"ARIN's latest statistics"},"rdap_snapshots":[],"transfers":[],"events":[{"event_id":"62d300368870e137","registry":"ARIN","report_date":"2018-09-06","source":"arin_issued","raw_action":"ADD","raw_line":"Add 160.20.251.0-160.20.251.255","resource_type":"ipv4","resource":"160.20.251.0/24","start":"160.20.251.0","end":"160.20.251.255","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":"2026-10-13T23:52:16+00:00","page":"https://rirtracker.com/ip/160.20.251.0-160.20.251.255/#e-62d300368870e137","report_page":"https://rirtracker.com/arin/reports/2018-09-06/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/160.20.251.0-160.20.251.255.json","explanation":"No transfer record matches. ARIN's statistics show it not listed on 2018-09-05 and assigned (dated 2018-09-06) on 2018-09-07. It wasn't in ARIN's statistics before, so it wasn't ARIN's unissued inventory; it may have come from another registry in a transfer not yet in the log.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2018-September/003557.html","retrieved_at":"2026-10-12T18:40:12+00:00","summary":"ARIN-Issued report for 2018-09-06: \"Add 160.20.251.0-160.20.251.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20180905.gz","retrieved_at":"2026-10-12T21:52:03+00:00","summary":"ARIN delegated statistics 2018-09-05 (produced 2018-09-05T05:00:16+00:00), before the report: not listed"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20180907.gz","retrieved_at":"2026-10-12T21:52:08+00:00","summary":"ARIN delegated statistics 2018-09-07 (produced 2018-09-07T05:00:15+00:00), after the report: assigned (dated 2018-09-06)"}]},{"event_id":"7efc2e3d0fd3df2c","registry":"ARIN","report_date":"2018-09-06","source":"arin_issued","raw_action":"REMOVE","raw_line":"Remove 160.20.251.0-160.20.251.255","resource_type":"ipv4","resource":"160.20.251.0/24","start":"160.20.251.0","end":"160.20.251.255","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":"2026-10-13T23:52:16+00:00","page":"https://rirtracker.com/ip/160.20.251.0-160.20.251.255/#e-7efc2e3d0fd3df2c","report_page":"https://rirtracker.com/arin/reports/2018-09-06/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/160.20.251.0-160.20.251.255.json","explanation":"No transfer record matches. ARIN's statistics show it not listed on 2018-09-05 and assigned (dated 2018-09-06) on 2018-09-07. It wasn't in ARIN's statistics before, so it wasn't ARIN's unissued inventory; it may have come from another registry in a transfer not yet in the log.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2018-September/003557.html","retrieved_at":"2026-10-12T18:40:12+00:00","summary":"ARIN-Issued report for 2018-09-06: \"Remove 160.20.251.0-160.20.251.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20180905.gz","retrieved_at":"2026-10-12T21:52:03+00:00","summary":"ARIN delegated statistics 2018-09-05 (produced 2018-09-05T05:00:16+00:00), before the report: not listed"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20180907.gz","retrieved_at":"2026-10-12T21:52:08+00:00","summary":"ARIN delegated statistics 2018-09-07 (produced 2018-09-07T05:00:15+00:00), after the report: assigned (dated 2018-09-06)"}]}],"classification_history":{"62d300368870e137":[{"raw_change_id":156162,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.0","classified_at":"2026-10-13T03:42:08+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it not listed on 2018-09-05 and assigned (dated 2018-09-06) on 2018-09-07. It wasn't in ARIN's statistics before, so it wasn't ARIN's unissued inventory; it may have come from another registry in a transfer not yet in the log."},{"raw_change_id":156162,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.1","classified_at":"2026-10-13T08:06:22+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it not listed on 2018-09-05 and assigned (dated 2018-09-06) on 2018-09-07. It wasn't in ARIN's statistics before, so it wasn't ARIN's unissued inventory; it may have come from another registry in a transfer not yet in the log."},{"raw_change_id":156162,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.2","classified_at":"2026-10-13T14:49:03+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it not listed on 2018-09-05 and assigned (dated 2018-09-06) on 2018-09-07. It wasn't in ARIN's statistics before, so it wasn't ARIN's unissued inventory; it may have come from another registry in a transfer not yet in the log."},{"raw_change_id":156162,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.4.0","classified_at":"2026-10-13T23:52:16+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it not listed on 2018-09-05 and assigned (dated 2018-09-06) on 2018-09-07. It wasn't in ARIN's statistics before, so it wasn't ARIN's unissued inventory; it may have come from another registry in a transfer not yet in the log."}],"7efc2e3d0fd3df2c":[{"raw_change_id":156151,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.0","classified_at":"2026-10-13T03:42:08+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it not listed on 2018-09-05 and assigned (dated 2018-09-06) on 2018-09-07. It wasn't in ARIN's statistics before, so it wasn't ARIN's unissued inventory; it may have come from another registry in a transfer not yet in the log."},{"raw_change_id":156151,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.1","classified_at":"2026-10-13T08:06:22+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it not listed on 2018-09-05 and assigned (dated 2018-09-06) on 2018-09-07. It wasn't in ARIN's statistics before, so it wasn't ARIN's unissued inventory; it may have come from another registry in a transfer not yet in the log."},{"raw_change_id":156151,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.2","classified_at":"2026-10-13T14:49:03+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it not listed on 2018-09-05 and assigned (dated 2018-09-06) on 2018-09-07. It wasn't in ARIN's statistics before, so it wasn't ARIN's unissued inventory; it may have come from another registry in a transfer not yet in the log."},{"raw_change_id":156151,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.4.0","classified_at":"2026-10-13T23:52:16+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it not listed on 2018-09-05 and assigned (dated 2018-09-06) on 2018-09-07. It wasn't in ARIN's statistics before, so it wasn't ARIN's unissued inventory; it may have come from another registry in a transfer not yet in the log."}]},"arin_statistics_now":{"status":"allocated (dated 2018-09-06)"}}