{"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":"AS25856","resource_type":"asn","page":"https://rirtracker.com/asn/25856/","statistics_now":{"registry":"ARIN","status":"assigned (dated 2008-04-03)"},"current_holder":{"rir":"ARIN","org":"INFOGROUP INC.","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":2624,"date":"2021-11-09T22:48:22Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Walter Karl, Inc.","recipient_org":"INFOGROUP INC.","range":"AS25856","log":"ARIN"},{"id":52,"date":"2015-08-11T18:49:22Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Edith Roman Holdings, Inc.","recipient_org":"Walter Karl, Inc.","range":"AS25856","log":"ARIN"}],"events":[{"event_id":"55f4ee9806ecc100","registry":"ARIN","report_date":"2021-11-09","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"asn","resource":"AS25856","start":25856,"end":25856,"classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Walter Karl, Inc.","recipient_organization":"INFOGROUP INC.","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:58+00:00","page":"https://rirtracker.com/asn/25856/#e-55f4ee9806ecc100","report_page":"https://rirtracker.com/arin/reports/2021-11-09/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/25856.json","observed":"Merger/acquisition: Walter Karl, Inc. (ARIN) to INFOGROUP INC. (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Walter Karl, Inc. (ARIN) to INFOGROUP INC. (ARIN) on 2021-11-09 22:48 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 2021-11-09 22:48 UTC, Walter Karl, Inc. (ARIN) to INFOGROUP INC. (ARIN); resources moved: AS25856"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2021/delegated-arin-extended-20211108.gz","retrieved_at":"2026-10-12T22:51:52+00:00","summary":"ARIN delegated statistics 2021-11-08 (produced 2021-11-08T14:00:13+00:00), before the report: assigned (dated 2008-04-03)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2021/delegated-arin-extended-20211110.gz","retrieved_at":"2026-10-12T22:51:57+00:00","summary":"ARIN delegated statistics 2021-11-10 (produced 2021-11-10T14:00:12+00:00), after the report: assigned (dated 2008-04-03)"}]},{"event_id":"5f28fa7d6506e268","registry":"ARIN","report_date":"2015-08-11","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"asn","resource":"AS25856","start":25856,"end":25856,"classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Edith Roman Holdings, Inc.","recipient_organization":"Walter Karl, Inc.","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:23+00:00","page":"https://rirtracker.com/asn/25856/#e-5f28fa7d6506e268","report_page":"https://rirtracker.com/arin/reports/2015-08-11/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/25856.json","observed":"Merger/acquisition: Edith Roman Holdings, Inc. (ARIN) to Walter Karl, Inc. (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Edith Roman Holdings, Inc. (ARIN) to Walter Karl, Inc. (ARIN) on 2015-08-11 18:49 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 2015-08-11 18:49 UTC, Edith Roman Holdings, Inc. (ARIN) to Walter Karl, Inc. (ARIN); resources moved: AS25856"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2015/delegated-arin-extended-20150810.gz","retrieved_at":"2026-10-12T20:56:53+00:00","summary":"ARIN delegated statistics 2015-08-10 (produced 2015-08-10T05:05:19+00:00), before the report: assigned (dated 2008-04-03)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2015/delegated-arin-extended-20150812.gz","retrieved_at":"2026-10-12T20:56:58+00:00","summary":"ARIN delegated statistics 2015-08-12 (produced 2015-08-12T05:05:26+00:00), after the report: assigned (dated 2008-04-03)"}]}],"classification_history":{"55f4ee9806ecc100":[{"raw_change_id":564130,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:58+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Walter Karl, Inc. (ARIN) to INFOGROUP INC. (ARIN) on 2021-11-09 22:48 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."}],"5f28fa7d6506e268":[{"raw_change_id":549438,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:23+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Edith Roman Holdings, Inc. (ARIN) to Walter Karl, Inc. (ARIN) on 2015-08-11 18:49 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 2008-04-03)"}}