{"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":"AS17209","resource_type":"asn","page":"https://rirtracker.com/asn/17209/","statistics_now":{"registry":"ARIN","status":"assigned (dated 2006-07-11)"},"current_holder":{"rir":"ARIN","org":"Houghton Mifflin Harcourt Publishing Company","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":4081,"date":"2024-08-21T19:39:18Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"NORTHWEST EVALUATION ASSOCIATION","recipient_org":"Houghton Mifflin Harcourt Publishing Company","range":"AS17209","log":"ARIN"}],"events":[{"event_id":"2d29f3f183e21d80","registry":"ARIN","report_date":"2024-08-21","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"asn","resource":"AS17209","start":17209,"end":17209,"classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"NORTHWEST EVALUATION ASSOCIATION","recipient_organization":"Houghton Mifflin Harcourt Publishing Company","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:16+00:00","page":"https://rirtracker.com/asn/17209/#e-2d29f3f183e21d80","report_page":"https://rirtracker.com/arin/reports/2024-08-21/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/17209.json","observed":"Merger/acquisition: NORTHWEST EVALUATION ASSOCIATION (ARIN) to Houghton Mifflin Harcourt Publishing Company (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from NORTHWEST EVALUATION ASSOCIATION (ARIN) to Houghton Mifflin Harcourt Publishing Company (ARIN) on 2024-08-21 19:39 UTC. The registration changed hands; it is not a new allocation from ARIN. ARIN-Issued and ARIN's statistics don't show this change; only the transfer log records it.","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: MERGER_ACQUISITION on 2024-08-21 19:39 UTC, NORTHWEST EVALUATION ASSOCIATION (ARIN) to Houghton Mifflin Harcourt Publishing Company (ARIN); resources moved: AS17209"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20240820.gz","retrieved_at":"2026-10-12T23:45:15+00:00","summary":"ARIN delegated statistics 2024-08-20 (produced 2024-08-20T13:00:52+00:00), before the report: assigned (dated 2006-07-11)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20240822.gz","retrieved_at":"2026-10-12T23:45:21+00:00","summary":"ARIN delegated statistics 2024-08-22 (produced 2024-08-22T13:00:52+00:00), after the report: assigned (dated 2006-07-11)"}]}],"classification_history":{"2d29f3f183e21d80":[{"raw_change_id":571516,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:16+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from NORTHWEST EVALUATION ASSOCIATION (ARIN) to Houghton Mifflin Harcourt Publishing Company (ARIN) on 2024-08-21 19:39 UTC. The registration changed hands; it is not a new allocation from ARIN. ARIN-Issued and ARIN's statistics don't show this change; only the transfer log records it."}]},"arin_statistics_now":{"status":"assigned (dated 2006-07-11)"}}