{"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":"137.134.0.0/16","resource_type":"ipv4","page":"https://rirtracker.com/ip/137.134.0.0-137.134.255.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 1989-11-29)"},"current_holder":{"rir":"ARIN","org":"ROCKET SOFTWARE INC","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":15098,"date":"2018-09-25T15:47:33Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"TCSI Corporation","recipient_org":"ROCKET SOFTWARE INC","range":"137.134.0.0/16","log":"ARIN"}],"events":[{"event_id":"e022f2573814c897","registry":"ARIN","report_date":"2018-09-25","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"137.134.0.0/16","start":"137.134.0.0","end":"137.134.255.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"TCSI Corporation","recipient_organization":"ROCKET SOFTWARE INC","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:39+00:00","page":"https://rirtracker.com/ip/137.134.0.0-137.134.255.255/#e-e022f2573814c897","report_page":"https://rirtracker.com/arin/reports/2018-09-25/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/137.134.0.0-137.134.255.255.json","observed":"Merger/acquisition: TCSI Corporation (ARIN) to ROCKET SOFTWARE INC (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from TCSI Corporation (ARIN) to ROCKET SOFTWARE INC (ARIN) on 2018-09-25 15:47 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 2018-09-25 15:47 UTC, TCSI Corporation (ARIN) to ROCKET SOFTWARE INC (ARIN); resources moved: 137.134.0.0/16"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20180924.gz","retrieved_at":"2026-10-12T21:53:00+00:00","summary":"ARIN delegated statistics 2018-09-24 (produced 2018-09-24T05:00:16+00:00), before the report: assigned (dated 1989-11-29)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20180926.gz","retrieved_at":"2026-10-12T21:53:05+00:00","summary":"ARIN delegated statistics 2018-09-26 (produced 2018-09-26T05:00:15+00:00), after the report: assigned (dated 1989-11-29)"}]}],"classification_history":{"e022f2573814c897":[{"raw_change_id":556298,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:39+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from TCSI Corporation (ARIN) to ROCKET SOFTWARE INC (ARIN) on 2018-09-25 15:47 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":"allocated (dated 1989-11-29)"}}