{"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":"141.193.151.0/24","resource_type":"ipv4","page":"https://rirtracker.com/ip/141.193.151.0-141.193.151.255/","statistics_now":{"registry":"LACNIC","status":"allocated (dated 2020-12-08)"},"current_holder":{"rir":"LACNIC","org":"Mundivox Telecomunicacoes Ltda","how":"LACNIC's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":22218,"date":"2020-12-08T16:17:51Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"LACNIC","source_org":"RF Engineering","recipient_org":"Mundivox Telecomunicacoes Ltda","range":"141.193.151.0/24","log":"ARIN"},{"id":132034,"date":"2020-12-08T13:00:00Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"LACNIC","source_org":"RF Engineering","recipient_org":"Mundivox Telecomunicações LTDA","range":"141.193.151.0/24","log":"LACNIC"},{"id":6310,"date":"2015-12-22T22:06:17Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"RF Engineering","recipient_org":"DataWagon LLC","range":"141.193.0.0/16","log":"ARIN"}],"events":[{"event_id":"47078d95203e7547","registry":"ARIN","report_date":"2020-12-08","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"ipv4","resource":"141.193.151.0/24","start":"141.193.151.0","end":"141.193.151.255","classification":"INTER_RIR_TRANSFER_OUT","classification_label":"Inter-RIR transfer out of ARIN","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"LACNIC","source_organization":"RF Engineering","recipient_organization":"Mundivox Telecomunicacoes Ltda","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":"2026-10-14T00:07:43+00:00","page":"https://rirtracker.com/ip/141.193.151.0-141.193.151.255/#e-47078d95203e7547","report_page":"https://rirtracker.com/arin/reports/2020-12-08/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/141.193.151.0-141.193.151.255.json","observed":"141.193.151.0/24 allocated on 2020-12-08, not listed on 2020-12-09","same_transfer_as":"23bd4c1c516f9e45","explanation":"ARIN's transfer log records a transfer from RF Engineering (ARIN) to Mundivox Telecomunicacoes Ltda (LACNIC) on 2020-12-08 16:17 UTC: it left ARIN for LACNIC. ARIN-Issued didn't list this change; it is not a new allocation and is not offered to ARIN applicants.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2020/delegated-arin-extended-20201209.gz","retrieved_at":"2026-10-12T22:34:47+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 141.193.151.0/24 allocated on 2020-12-08, not listed on 2020-12-09"},{"type":"transfer","url":"https://ftp.arin.net/pub/stats/arin/transfers/transfers_latest.json","retrieved_at":"2026-10-13T13:57:20+00:00","summary":"Transfer log: RESOURCE_TRANSFER on 2020-12-08 16:17 UTC, RF Engineering (ARIN) to Mundivox Telecomunicacoes Ltda (LACNIC); resources moved: 141.193.151.0/24"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2020/delegated-arin-extended-20201207.gz","retrieved_at":"2026-10-12T22:34:42+00:00","summary":"ARIN delegated statistics 2020-12-07 (produced 2020-12-07T15:00:13+00:00), before the report: allocated (dated 1990-07-27)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2020/delegated-arin-extended-20201209.gz","retrieved_at":"2026-10-12T22:34:47+00:00","summary":"ARIN delegated statistics 2020-12-09 (produced 2020-12-09T15:00:13+00:00), after the report: not listed"}]},{"event_id":"23bd4c1c516f9e45","registry":"LACNIC","report_date":"2020-12-08","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"141.193.151.0/24","start":"141.193.151.0","end":"141.193.151.255","classification":"INTER_RIR_TRANSFER_IN","classification_label":"Inter-RIR transfer into LACNIC","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"LACNIC","source_organization":"RF Engineering","recipient_organization":"Mundivox Telecomunicações LTDA","inventory_effect":"Transferred into LACNIC administration; not a new issuance","inventory_effect_code":"TRANSFER_IN","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:46:26+00:00","page":"https://rirtracker.com/ip/141.193.151.0-141.193.151.255/#e-23bd4c1c516f9e45","report_page":"https://rirtracker.com/lacnic/reports/2020-12-08/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/141.193.151.0-141.193.151.255.json","observed":"Transfer: RF Engineering (ARIN) to Mundivox Telecomunicações LTDA (LACNIC)","same_transfer_as":"47078d95203e7547","explanation":"LACNIC's transfer log records a transfer from RF Engineering (ARIN) to Mundivox Telecomunicações LTDA (LACNIC) on 2020-12-08 13:00 UTC: it came to LACNIC from ARIN. It was already issued by another registry, so this is not a new issuance.","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 2020-12-08 13:00 UTC, RF Engineering (ARIN) to Mundivox Telecomunicações LTDA (LACNIC); resources moved: 141.193.151.0/24"},{"type":"delegated_before","url":"https://ftp.lacnic.net/pub/stats/lacnic/archive/2020/delegated-lacnic-extended-20201207","retrieved_at":"2026-10-12T23:44:40+00:00","summary":"LACNIC delegated statistics 2020-12-07, before the change: not listed"},{"type":"delegated_after","url":"https://ftp.lacnic.net/pub/stats/lacnic/archive/2020/delegated-lacnic-extended-20201208","retrieved_at":"2026-10-12T23:44:49+00:00","summary":"LACNIC delegated statistics 2020-12-08, after the change: allocated (dated 2020-12-08)"}]}],"classification_history":{"47078d95203e7547":[{"raw_change_id":405757,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T05:42:42+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from RF Engineering (ARIN) to Mundivox Telecomunicacoes Ltda (LACNIC) on 2020-12-08 16:17 UTC: it left ARIN for LACNIC. ARIN-Issued didn't list this change; it is not a new allocation and is not offered to ARIN applicants."},{"raw_change_id":405757,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:19:15+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from RF Engineering (ARIN) to Mundivox Telecomunicacoes Ltda (LACNIC) on 2020-12-08 16:17 UTC: it left ARIN for LACNIC. ARIN-Issued didn't list this change; it is not a new allocation and is not offered to ARIN applicants."},{"raw_change_id":405757,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T15:03:04+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from RF Engineering (ARIN) to Mundivox Telecomunicacoes Ltda (LACNIC) on 2020-12-08 16:17 UTC: it left ARIN for LACNIC. ARIN-Issued didn't list this change; it is not a new allocation and is not offered to ARIN applicants."},{"raw_change_id":405757,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:07:43+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from RF Engineering (ARIN) to Mundivox Telecomunicacoes Ltda (LACNIC) on 2020-12-08 16:17 UTC: it left ARIN for LACNIC. ARIN-Issued didn't list this change; it is not a new allocation and is not offered to ARIN applicants."}],"23bd4c1c516f9e45":[{"raw_change_id":30464,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T02:33:19+00:00","current":0,"public_explanation":"LACNIC's transfer log records a transfer from RF Engineering (ARIN) to Mundivox Telecomunicações LTDA (LACNIC) on 2020-12-08 13:00 UTC: it came to LACNIC from ARIN. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":30464,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:01:43+00:00","current":0,"public_explanation":"LACNIC's transfer log records a transfer from RF Engineering (ARIN) to Mundivox Telecomunicações LTDA (LACNIC) on 2020-12-08 13:00 UTC: it came to LACNIC from ARIN. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":30464,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:43:52+00:00","current":0,"public_explanation":"LACNIC's transfer log records a transfer from RF Engineering (ARIN) to Mundivox Telecomunicações LTDA (LACNIC) on 2020-12-08 13:00 UTC: it came to LACNIC from ARIN. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":30464,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:46:26+00:00","current":1,"public_explanation":"LACNIC's transfer log records a transfer from RF Engineering (ARIN) to Mundivox Telecomunicações LTDA (LACNIC) on 2020-12-08 13:00 UTC: it came to LACNIC from ARIN. It was already issued by another registry, so this is not a new issuance."}]},"arin_statistics_now":{"status":"not listed"}}