{"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":"131.161.72.0/22","resource_type":"ipv4","page":"https://rirtracker.com/ip/131.161.72.0-131.161.75.255/","statistics_now":{"registry":"LACNIC","status":"allocated (dated 2014-09-15)"},"current_holder":{"rir":"LACNIC","org":"VSX NETWORKS LTDA","how":"LACNIC's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":132547,"date":"2024-05-13T11:00:00Z","type":"RESOURCE_TRANSFER","source_rir":"LACNIC","recipient_rir":"LACNIC","source_org":"UDS SOLUÇÕES DIGITAIS LTDA","recipient_org":"VSX NETWORKS LTDA","range":"131.161.72.0/22","log":"LACNIC"}],"events":[{"event_id":"01d5fdf714208d5f","registry":"LACNIC","report_date":"2024-05-13","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"131.161.72.0/22","start":"131.161.72.0","end":"131.161.75.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-LACNIC transfer","confidence":"CONFIRMED","source_rir":"LACNIC","recipient_rir":"LACNIC","source_organization":"UDS SOLUÇÕES DIGITAIS LTDA","recipient_organization":"VSX NETWORKS LTDA","inventory_effect":"No effect on LACNIC applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:46:27+00:00","page":"https://rirtracker.com/ip/131.161.72.0-131.161.75.255/#e-01d5fdf714208d5f","report_page":"https://rirtracker.com/lacnic/reports/2024-05-13/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/131.161.72.0-131.161.75.255.json","observed":"Transfer: UDS SOLUÇÕES DIGITAIS LTDA (LACNIC) to VSX NETWORKS LTDA (LACNIC)","explanation":"LACNIC's transfer log records a transfer from UDS SOLUÇÕES DIGITAIS LTDA (LACNIC) to VSX NETWORKS LTDA (LACNIC) on 2024-05-13 11:00 UTC. The registration changed hands; it is not a new allocation from LACNIC.","evidence":[{"type":"transfer","url":"https://ftp.lacnic.net/pub/stats/lacnic/transfers/transfers_latest.json","retrieved_at":"2026-10-13T13:57:38+00:00","summary":"Transfer log: RESOURCE_TRANSFER on 2024-05-13 11:00 UTC, UDS SOLUÇÕES DIGITAIS LTDA (LACNIC) to VSX NETWORKS LTDA (LACNIC); resources moved: 131.161.72.0/22"},{"type":"delegated_before","url":"https://ftp.lacnic.net/pub/stats/lacnic/archive/2024/delegated-lacnic-extended-20240512","retrieved_at":"2026-10-13T01:35:45+00:00","summary":"LACNIC delegated statistics 2024-05-12, before the change: allocated (dated 2014-09-15)"},{"type":"delegated_after","url":"https://ftp.lacnic.net/pub/stats/lacnic/archive/2024/delegated-lacnic-extended-20240513","retrieved_at":"2026-10-13T01:35:50+00:00","summary":"LACNIC delegated statistics 2024-05-13, after the change: allocated (dated 2014-09-15)"}]},{"event_id":"cd3650c8633d76cd","registry":"LACNIC","report_date":"2014-09-15","source":"statistics","raw_action":"ADDED","raw_line":null,"resource_type":"ipv4","resource":"131.161.72.0/22","start":"131.161.72.0","end":"131.161.75.255","classification":"APPARENT_NEW_ISSUANCE","classification_label":"Apparent new issuance","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"Likely issued from LACNIC-controlled inventory","inventory_effect_code":"ISSUED","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:59:35+00:00","page":"https://rirtracker.com/ip/131.161.72.0-131.161.75.255/#e-cd3650c8633d76cd","report_page":"https://rirtracker.com/lacnic/reports/2014-09-15/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/131.161.72.0-131.161.75.255.json","observed":"131.161.72.0/22 reserved on 2014-09-14, allocated on 2014-09-15","explanation":"No transfer record matches. LACNIC's statistics show it reserved on 2014-09-14 and allocated (dated 2014-09-15) on 2014-09-15. It moved from LACNIC's unissued pool to an active registration dated around that day, so it appears to be newly issued by LACNIC.","evidence":[{"type":"statistics_diff","url":"https://ftp.lacnic.net/pub/stats/lacnic/archive/2014/delegated-lacnic-extended-20140915","retrieved_at":"2026-10-12T20:32:00+00:00","summary":"Found by comparing LACNIC's daily statistics: 131.161.72.0/22 reserved on 2014-09-14, allocated on 2014-09-15"},{"type":"delegated_before","url":"https://ftp.lacnic.net/pub/stats/lacnic/archive/2014/delegated-lacnic-extended-20140914","retrieved_at":"2026-10-12T20:31:55+00:00","summary":"LACNIC delegated statistics 2014-09-14, before the change: reserved"},{"type":"delegated_after","url":"https://ftp.lacnic.net/pub/stats/lacnic/archive/2014/delegated-lacnic-extended-20140915","retrieved_at":"2026-10-12T20:32:00+00:00","summary":"LACNIC delegated statistics 2014-09-15, after the change: allocated (dated 2014-09-15)"}]}],"classification_history":{"01d5fdf714208d5f":[{"raw_change_id":30977,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T02:33:38+00:00","current":0,"public_explanation":"LACNIC's transfer log records a transfer from UDS SOLUÇÕES DIGITAIS LTDA (LACNIC) to VSX NETWORKS LTDA (LACNIC) on 2024-05-13 11:00 UTC. The registration changed hands; it is not a new allocation from LACNIC."},{"raw_change_id":30977,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:01:44+00:00","current":0,"public_explanation":"LACNIC's transfer log records a transfer from UDS SOLUÇÕES DIGITAIS LTDA (LACNIC) to VSX NETWORKS LTDA (LACNIC) on 2024-05-13 11:00 UTC. The registration changed hands; it is not a new allocation from LACNIC."},{"raw_change_id":30977,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:43:53+00:00","current":0,"public_explanation":"LACNIC's transfer log records a transfer from UDS SOLUÇÕES DIGITAIS LTDA (LACNIC) to VSX NETWORKS LTDA (LACNIC) on 2024-05-13 11:00 UTC. The registration changed hands; it is not a new allocation from LACNIC."},{"raw_change_id":30977,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:46:27+00:00","current":1,"public_explanation":"LACNIC's transfer log records a transfer from UDS SOLUÇÕES DIGITAIS LTDA (LACNIC) to VSX NETWORKS LTDA (LACNIC) on 2024-05-13 11:00 UTC. The registration changed hands; it is not a new allocation from LACNIC."}],"cd3650c8633d76cd":[{"raw_change_id":281697,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:47:11+00:00","current":0,"public_explanation":"No transfer record matches. LACNIC's statistics show it reserved on 2014-09-14 and allocated (dated 2014-09-15) on 2014-09-15. The tracker saw this range released from hold on 2014-04-23 (131.161.0.0/16), so it appears to have been issued again from LACNIC's pool."},{"raw_change_id":281697,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:12:27+00:00","current":0,"public_explanation":"No transfer record matches. LACNIC's statistics show it reserved on 2014-09-14 and allocated (dated 2014-09-15) on 2014-09-15. The tracker saw this range released from hold on 2014-04-23 (131.161.0.0/16), so it appears to have been issued again from LACNIC's pool."},{"raw_change_id":281697,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:55:45+00:00","current":0,"public_explanation":"No transfer record matches. LACNIC's statistics show it reserved on 2014-09-14 and allocated (dated 2014-09-15) on 2014-09-15. The tracker saw this range released from hold on 2014-04-23 (131.161.0.0/16), so it appears to have been issued again from LACNIC's pool."},{"raw_change_id":281697,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:59:35+00:00","current":1,"public_explanation":"No transfer record matches. LACNIC's statistics show it reserved on 2014-09-14 and allocated (dated 2014-09-15) on 2014-09-15. It moved from LACNIC's unissued pool to an active registration dated around that day, so it appears to be newly issued by LACNIC."}]},"arin_statistics_now":{"status":"not listed"}}