{"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":"131.162.0.0/21","resource_type":"ipv4","page":"https://rirtracker.com/ip/131.162.0.0-131.162.7.255/","statistics_now":{"registry":"RIPE NCC","status":"allocated (dated 1988-12-08)"},"current_holder":{"rir":"RIPE NCC","org":"MNT-IPONE","handle":"MNT-IPONE","how":"RDAP, looked up 2026-10-29 18:19 UTC"},"rdap_snapshots":[{"resource_type":"ipv4","start_key":"00000000000000000000000083a20000","end_key":"00000000000000000000000083a207ff","captured_at":"2026-10-29T18:19:49+00:00","reason":"7d","authoritative_rir":"RIPE NCC","handle":"131.162.0.0 - 131.162.3.255","name":"IPONE-131162-BLOCK1","status":"active","org_handle":"MNT-IPONE","org_name":"MNT-IPONE","country_code":"NL","registration_date":"2026-10-22T11:45:29Z","last_changed_date":"2026-10-22T11:45:29Z","rdap_url":"https://rdap.arin.net/registry/ip/131.162.0.0"},{"resource_type":"ipv4","start_key":"00000000000000000000000083a20000","end_key":"00000000000000000000000083a207ff","captured_at":"2026-10-22T18:34:45+00:00","reason":"24h","authoritative_rir":"RIPE NCC","handle":"131.162.0.0 - 131.162.3.255","name":"IPONE-131162-BLOCK1","status":"active","org_handle":"MNT-IPONE","org_name":"MNT-IPONE","country_code":"NL","registration_date":"2026-10-22T11:45:29Z","last_changed_date":"2026-10-22T11:45:29Z","rdap_url":"https://rdap.arin.net/registry/ip/131.162.0.0"},{"resource_type":"ipv4","start_key":"00000000000000000000000083a20000","end_key":"00000000000000000000000083a207ff","captured_at":"2026-10-21T18:31:53+00:00","reason":"first","authoritative_rir":"RIPE NCC","handle":"131.162.0.0 - 131.162.7.255","name":"NL-IPONE-19881208","status":"active","org_handle":"MNT-IPONE","org_name":"MNT-IPONE","country_code":"NL","registration_date":"2026-10-21T13:55:06Z","last_changed_date":"2026-10-21T13:55:06Z","rdap_url":"https://rdap.arin.net/registry/ip/131.162.0.0"}],"transfers":[{"id":134123,"date":"2026-10-21T19:00:00Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_org":null,"recipient_org":"IP-ONE B.V.","range":"131.162.0.0/21","log":"RIPE NCC"},{"id":134148,"date":"2026-10-21T14:07:26Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_org":"Acadia University","recipient_org":"IP-ONE B.V.","range":"131.162.0.0/21","log":"ARIN"}],"events":[{"event_id":"705776356c5dbf12","registry":"ARIN","report_date":"2026-10-21","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"131.162.0.0/21","start":"131.162.0.0","end":"131.162.7.255","classification":"INTER_RIR_TRANSFER_OUT","classification_label":"Inter-RIR transfer out of ARIN","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_organization":"Acadia University","recipient_organization":"IP-ONE B.V.","inventory_effect":"Transferred out of ARIN administration; not offered to ARIN applicants","inventory_effect_code":"TRANSFER_OUT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-24T18:24:57+00:00","page":"https://rirtracker.com/ip/131.162.0.0-131.162.7.255/#e-705776356c5dbf12","report_page":"https://rirtracker.com/arin/reports/2026-10-21/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/131.162.0.0-131.162.7.255.json","observed":"Transfer: Acadia University (ARIN) to IP-ONE B.V. (RIPE NCC)","piece_of":{"resource":"131.162.0.0/16","page":"https://rirtracker.com/ip/131.162.0.0-131.162.255.255/"},"same_transfer_as":"a3e907085b7119e7","explanation":"ARIN's transfer log records a transfer from Acadia University (ARIN) to IP-ONE B.V. (RIPE NCC) on 2026-10-21 14:07 UTC: it left ARIN for the RIPE NCC. It is not a new allocation and is not offered to ARIN applicants.","evidence":[{"type":"transfer","url":"https://ftp.arin.net/pub/stats/arin/transfers/transfers_latest.json","retrieved_at":"2026-10-24T18:17:06+00:00","summary":"Transfer log: RESOURCE_TRANSFER on 2026-10-21 14:07 UTC, Acadia University (ARIN) to IP-ONE B.V. (RIPE NCC); resources moved: 131.162.0.0/21"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20261020","retrieved_at":"2026-10-20T18:17:12+00:00","summary":"ARIN delegated statistics 2026-10-20 (produced 2026-10-20T13:00:20+00:00), before the report: allocated (dated 1988-12-09)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20261022","retrieved_at":"2026-10-22T18:17:15+00:00","summary":"ARIN delegated statistics 2026-10-22 (produced 2026-10-22T13:00:21+00:00), after the report: not listed"}]},{"event_id":"a3e907085b7119e7","registry":"RIPE NCC","report_date":"2026-10-21","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"131.162.0.0/21","start":"131.162.0.0","end":"131.162.7.255","classification":"INTER_RIR_TRANSFER_IN","classification_label":"Inter-RIR transfer into the RIPE NCC","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_organization":null,"recipient_organization":"IP-ONE B.V.","inventory_effect":"Transferred into RIPE NCC administration; not a new issuance","inventory_effect_code":"TRANSFER_IN","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-21T18:43:43+00:00","page":"https://rirtracker.com/ip/131.162.0.0-131.162.7.255/#e-a3e907085b7119e7","report_page":"https://rirtracker.com/ripe/reports/2026-10-21/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/131.162.0.0-131.162.7.255.json","observed":"Transfer: (no name) (ARIN) to IP-ONE B.V. (RIPE NCC)","same_transfer_as":"705776356c5dbf12","explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to IP-ONE B.V. (RIPE NCC) on 2026-10-21 19:00 UTC: it came to the RIPE NCC from ARIN. It was already issued by another registry, so this is not a new issuance.","evidence":[{"type":"transfer","url":"https://ftp.ripe.net/pub/stats/ripencc/transfers/transfers_latest.json","retrieved_at":"2026-10-21T18:17:17+00:00","summary":"Transfer log: RESOURCE_TRANSFER on 2026-10-21 19:00 UTC, (no name) (ARIN) to IP-ONE B.V. (RIPE NCC); resources moved: 131.162.0.0/21"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2026/delegated-ripencc-extended-20261020.bz2","retrieved_at":"2026-10-21T18:17:20+00:00","summary":"RIPE NCC delegated statistics 2026-10-20 (produced 2026-10-20T21:59:59+00:00), before the change: not listed"}]}],"classification_history":{"705776356c5dbf12":[{"raw_change_id":578646,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-24T18:24:57+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from Acadia University (ARIN) to IP-ONE B.V. (RIPE NCC) on 2026-10-21 14:07 UTC: it left ARIN for the RIPE NCC. It is not a new allocation and is not offered to ARIN applicants."}],"a3e907085b7119e7":[{"raw_change_id":578259,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-21T18:43:43+00:00","current":1,"public_explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to IP-ONE B.V. (RIPE NCC) on 2026-10-21 19:00 UTC: it came to the RIPE NCC from ARIN. It was already issued by another registry, so this is not a new issuance."}]},"arin_statistics_now":{"status":"not listed"}}