{"classifier_version":"1.0.0","generated":"2026-10-10T14:39:54+00:00","documentation":"https://rirtracker.com/api/","disclaimer":"This site independently analyzes publicly available Internet number-resource records. It is not affiliated with or endorsed by the American Registry for Internet Numbers (ARIN), the Number Resource Organization (NRO), or any 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":"138.81.192.0/18","resource_type":"ipv4","page":"https://rirtracker.com/ip/138.81.192.0-138.81.255.255/","arin_statistics_now":{"file_date":"2026-10-10","status":"allocated (dated 2026-03-10)"},"current_holder":{"rir":"ARIN","org":"Chequamegon Communications Cooperative, Inc.","how":"ARIN's statistics for 2026-10-10 and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":43128,"date":"2026-03-10T13:59:46Z","type":"RESOURCE_TRANSFER","source_rir":"RIPE NCC","recipient_rir":"ARIN","source_org":"International Organization for Standardization","recipient_org":"Chequamegon Communications Cooperative, Inc.","range":"138.81.192.0/18"}],"events":[{"event_id":"ed379bddb93b0683","report_date":"2026-03-10","source":"arin_issued","raw_action":"ADD","raw_line":"Add 138.81.192.0-138.81.255.255","resource_type":"ipv4","resource":"138.81.192.0/18","start":"138.81.192.0","end":"138.81.255.255","classification":"INTER_RIR_TRANSFER_IN","classification_label":"Inter-RIR transfer into ARIN","confidence":"CONFIRMED","source_rir":"RIPE NCC","recipient_rir":"ARIN","source_organization":"International Organization for Standardization","recipient_organization":"Chequamegon Communications Cooperative, Inc.","inventory_effect":"Transferred into ARIN administration; not a new issuance","inventory_effect_code":"TRANSFER_IN","provisional":false,"classifier_version":"1.0.0","classified_at":"2026-10-09T19:28:18+00:00","page":"https://rirtracker.com/ip/138.81.192.0-138.81.255.255/#e-ed379bddb93b0683","evidence_url":"https://rirtracker.com/api/v1/events/ed379bddb93b0683.json","explanation":"ARIN's transfer log records a transfer from International Organization for Standardization (RIPE NCC) to Chequamegon Communications Cooperative, Inc. (ARIN) on 2026-03-10 13:59 UTC: it came to ARIN from RIPE NCC. It was already issued by another registry, so this is not a new issuance.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2026-March/006296.html","retrieved_at":"2026-10-09T18:53:56+00:00","summary":"ARIN-Issued report for 2026-03-10: \"Add 138.81.192.0-138.81.255.255\""},{"type":"transfer","url":"https://ftp.arin.net/pub/stats/arin/transfers/transfers_latest.json","retrieved_at":"2026-10-09T18:54:15+00:00","summary":"Transfer log: RESOURCE_TRANSFER on 2026-03-10 13:59 UTC, International Organization for Standardization (RIPE NCC) to Chequamegon Communications Cooperative, Inc. (ARIN); resources moved: 138.81.192.0/18"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260309","retrieved_at":"2026-10-09T18:57:52+00:00","summary":"ARIN delegated statistics 2026-03-09 (produced 2026-03-09T13:00:50+00:00), before the report: not listed"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260311","retrieved_at":"2026-10-09T18:57:59+00:00","summary":"ARIN delegated statistics 2026-03-11 (produced 2026-03-11T13:00:50+00:00), after the report: allocated (dated 2026-03-10)"}]}],"classification_history":{"ed379bddb93b0683":[{"raw_change_id":1059,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.0.0","classified_at":"2026-10-09T19:28:18+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from International Organization for Standardization (RIPE NCC) to Chequamegon Communications Cooperative, Inc. (ARIN) on 2026-03-10 13:59 UTC: it came to ARIN from RIPE NCC. It was already issued by another registry, so this is not a new issuance."}]}}