{"carrier":{"dot_number":"3535853","legal_name":"R4 LLC","dba_name":"","entity_type":"AUTHORIZED FOR HIRE","operating_status":"AUTHORIZED FOR HIRE","phy_street":"13140 SHINNECOCK DR","phy_city":"SILVER SPRING","phy_state":"MD","phy_zip":"20904","phy_country":"US","phone":"3017013600","mc_number":"MC-1178789","mc_number_2":"","mc_number_3":"","carrier_operation":"C","hm_indicator":"N","power_units":1,"total_drivers":1,"total_cdl":0,"mcs150_mileage":5500,"mcs150_mileage_year":"2023","mcs150_date":"20231009 0600","add_date":"20201214","officer_1":"RAKYN HETHERINGTON","officer_2":"","fleet_size_class":"A","business_type":"","duns_number":"","crash_rate":0,"prior_revoke_flag":"N","prior_revoke_dot":"","cargo_types":"C","source":"census","ingested_at":"2026-05-16 02:00:13","updated_at":"2026-05-16 02:00:13"},"crashes":{"total":0,"fatal":null,"injury":null},"safety_scores":[]}