{"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":"143.223.96.0/22","resource_type":"ipv4","page":"https://rirtracker.com/ip/143.223.96.0-143.223.99.255/","statistics_now":{"registry":"RIPE NCC","status":"allocated (dated 1990-06-30)"},"current_holder":{"rir":"RIPE NCC","org":"Proton AG ","how":"The RIPE NCC's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":107778,"date":"2024-09-09T19:00:00Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_org":null,"recipient_org":"Proton AG","range":"143.223.96.0/22","log":"RIPE NCC"},{"id":36695,"date":"2024-09-09T14:12:28Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_org":"WME","recipient_org":"Proton AG ","range":"143.223.96.0/22","log":"ARIN"},{"id":33564,"date":"2023-11-13T18:07:22Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"William Morris Agency, Inc.","recipient_org":"WME","range":"143.223.0.0/16","log":"ARIN"}],"events":[{"event_id":"7a0a101b36898460","registry":"ARIN","report_date":"2024-09-09","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"143.223.96.0/22","start":"143.223.96.0","end":"143.223.99.255","classification":"INTER_RIR_TRANSFER_OUT","classification_label":"Inter-RIR transfer out of ARIN","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_organization":"WME","recipient_organization":"Proton AG ","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":"2026-10-14T00:19:17+00:00","page":"https://rirtracker.com/ip/143.223.96.0-143.223.99.255/#e-7a0a101b36898460","report_page":"https://rirtracker.com/arin/reports/2024-09-09/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/143.223.96.0-143.223.99.255.json","observed":"Transfer: WME (ARIN) to Proton AG  (RIPE NCC)","piece_of":{"resource":"143.223.0.0/16","page":"https://rirtracker.com/ip/143.223.0.0-143.223.255.255/"},"same_transfer_as":"104d1358b3b6b43d","explanation":"ARIN's transfer log records a transfer from WME (ARIN) to Proton AG  (RIPE NCC) on 2024-09-09 14:12 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":"2026-10-13T13:57:20+00:00","summary":"Transfer log: RESOURCE_TRANSFER on 2024-09-09 14:12 UTC, WME (ARIN) to Proton AG  (RIPE NCC); resources moved: 143.223.96.0/22"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20240908.gz","retrieved_at":"2026-10-12T23:46:23+00:00","summary":"ARIN delegated statistics 2024-09-08 (produced 2024-09-08T13:00:53+00:00), before the report: allocated (dated 1990-06-30)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20240910.gz","retrieved_at":"2026-10-12T23:46:28+00:00","summary":"ARIN delegated statistics 2024-09-10 (produced 2024-09-10T13:00:53+00:00), after the report: not listed"}]},{"event_id":"104d1358b3b6b43d","registry":"RIPE NCC","report_date":"2024-09-09","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"143.223.96.0/22","start":"143.223.96.0","end":"143.223.99.255","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":"Proton AG","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":"2026-10-13T23:50:10+00:00","page":"https://rirtracker.com/ip/143.223.96.0-143.223.99.255/#e-104d1358b3b6b43d","report_page":"https://rirtracker.com/ripe/reports/2024-09-09/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/143.223.96.0-143.223.99.255.json","observed":"Transfer: (no name) (ARIN) to Proton AG (RIPE NCC)","same_transfer_as":"7a0a101b36898460","explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to Proton AG (RIPE NCC) on 2024-09-09 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":"2026-10-13T21:49:37+00:00","summary":"Transfer log: RESOURCE_TRANSFER on 2024-09-09 19:00 UTC, (no name) (ARIN) to Proton AG (RIPE NCC); resources moved: 143.223.96.0/22"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2024/delegated-ripencc-extended-20240908.bz2","retrieved_at":"2026-10-13T00:39:32+00:00","summary":"RIPE NCC delegated statistics 2024-09-08 (produced 2024-09-08T21:59:59+00:00), before the change: not listed"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2024/delegated-ripencc-extended-20240909.bz2","retrieved_at":"2026-10-13T00:39:35+00:00","summary":"RIPE NCC delegated statistics 2024-09-09 (produced 2024-09-09T21:59:59+00:00), after the change: allocated (dated 1990-06-30)"}]}],"classification_history":{"7a0a101b36898460":[{"raw_change_id":571690,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:17+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from WME (ARIN) to Proton AG  (RIPE NCC) on 2024-09-09 14:12 UTC: it left ARIN for the RIPE NCC. It is not a new allocation and is not offered to ARIN applicants."}],"104d1358b3b6b43d":[{"raw_change_id":108402,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T03:06:20+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to Proton AG (RIPE NCC) on 2024-09-09 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."},{"raw_change_id":108402,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:04:46+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to Proton AG (RIPE NCC) on 2024-09-09 19:00 UTC: it came to the RIPE NCC from ARIN. 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