{"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":"199.33.88.0/24","resource_type":"ipv4","page":"https://rirtracker.com/ip/199.33.88.0-199.33.88.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 1994-01-24)"},"current_holder":{"rir":"ARIN","org":"RTX Corporation","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":45412,"date":"2026-09-01T15:37:58Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Rockwell Collins, Inc.","recipient_org":"RTX Corporation","range":"199.33.88.0/24","log":"ARIN"}],"events":[{"event_id":"49f18eb6ca8ce002","registry":"ARIN","report_date":"2026-09-01","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"199.33.88.0/24","start":"199.33.88.0","end":"199.33.88.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Rockwell Collins, Inc.","recipient_organization":"RTX Corporation","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:30+00:00","page":"https://rirtracker.com/ip/199.33.88.0-199.33.88.255/#e-49f18eb6ca8ce002","report_page":"https://rirtracker.com/arin/reports/2026-09-01/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/199.33.88.0-199.33.88.255.json","observed":"Merger/acquisition: Rockwell Collins, Inc. (ARIN) to RTX Corporation (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Rockwell Collins, Inc. (ARIN) to RTX Corporation (ARIN) on 2026-09-01 15:37 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 2026-09-01 15:37 UTC, Rockwell Collins, Inc. (ARIN) to RTX Corporation (ARIN); resources moved: 199.33.88.0/24"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260831","retrieved_at":"2026-10-09T19:06:57+00:00","summary":"ARIN delegated statistics 2026-08-31 (produced 2026-08-31T13:00:21+00:00), before the report: allocated (dated 1994-01-24)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260902","retrieved_at":"2026-10-09T19:07:03+00:00","summary":"ARIN delegated statistics 2026-09-02 (produced 2026-09-02T13:00:21+00:00), after the report: allocated (dated 1994-01-24)"}]},{"event_id":"068ab6f1c1c4764d","registry":"ARIN","report_date":"2011-03-21","source":"arin_issued","raw_action":"ADD","raw_line":"Add 199.33.88.0-199.33.88.255","resource_type":"ipv4","resource":"199.33.88.0/24","start":"199.33.88.0","end":"199.33.88.255","classification":"UNRESOLVED","classification_label":"Unresolved change","confidence":"OBSERVED_ONLY","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"Inventory effect unknown","inventory_effect_code":"UNKNOWN","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:50:52+00:00","page":"https://rirtracker.com/ip/199.33.88.0-199.33.88.255/#e-068ab6f1c1c4764d","report_page":"https://rirtracker.com/arin/reports/2011-03-21/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/199.33.88.0-199.33.88.255.json","explanation":"No transfer record matches. ARIN's statistics show it assigned (dated 1999-12-03) on 2011-03-20 and assigned (dated 2011-03-21) on 2011-03-22. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registration was replaced with one for a different holder record, and public sources don't say why (a transfer not yet logged, a return and reissue, or an organization record change).","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2011-March/000827.html","retrieved_at":"2026-10-12T18:37:01+00:00","summary":"ARIN-Issued report for 2011-03-21: \"Add 199.33.88.0-199.33.88.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2011/delegated-arin-20110320.gz","retrieved_at":"2026-10-12T19:17:51+00:00","summary":"ARIN delegated statistics 2011-03-20, before the report: assigned (dated 1999-12-03)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2011/delegated-arin-20110322.gz","retrieved_at":"2026-10-12T19:17:55+00:00","summary":"ARIN delegated statistics 2011-03-22, after the report: assigned (dated 2011-03-21)"}]}],"classification_history":{"49f18eb6ca8ce002":[{"raw_change_id":577154,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:30+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Rockwell Collins, Inc. (ARIN) to RTX Corporation (ARIN) on 2026-09-01 15:37 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."}],"068ab6f1c1c4764d":[{"raw_change_id":122967,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.0","classified_at":"2026-10-13T03:13:34+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it assigned (dated 1999-12-03) on 2011-03-20 and assigned (dated 2011-03-21) on 2011-03-22. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registration was replaced with one for a different holder record, and public sources don't say why (a transfer not yet logged, a return and reissue, or an organization record change)."},{"raw_change_id":122967,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.1","classified_at":"2026-10-13T08:05:19+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it assigned (dated 1999-12-03) on 2011-03-20 and assigned (dated 2011-03-21) on 2011-03-22. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registration was replaced with one for a different holder record, and public sources don't say why (a transfer not yet logged, a return and reissue, or an organization record change)."},{"raw_change_id":122967,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.2","classified_at":"2026-10-13T14:47:52+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it assigned (dated 1999-12-03) on 2011-03-20 and assigned (dated 2011-03-21) on 2011-03-22. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registration was replaced with one for a different holder record, and public sources don't say why (a transfer not yet logged, a return and reissue, or an organization record change)."},{"raw_change_id":122967,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.4.0","classified_at":"2026-10-13T23:50:52+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it assigned (dated 1999-12-03) on 2011-03-20 and assigned (dated 2011-03-21) on 2011-03-22. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registration was replaced with one for a different holder record, and public sources don't say why (a transfer not yet logged, a return and reissue, or an organization record change)."}]},"arin_statistics_now":{"status":"allocated (dated 1994-01-24)"}}