Real world company prefixes

0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M n O P Q R S T U V W X Y Z Ø
R& R0 R1 R2 R3 R4 R5 R6 R7 R8 R9 RA RB RC RD RE RF RG RH RI RJ RK RL RM RN RO RP RQ RR RS RT RU RV RW RX RY RZ
ROA ROB ROC ROD ROE ROF ROG ROH ROI ROJ ROK ROL ROM RON ROO ROP ROQ ROR ROS ROT ROU ROV ROW ROX ROY ROZ
RORA RORB RORF RORG RORI RORL RORM RORN RORO RORP RORR RORT RORU RORX RORY RORZ
1 RORX Radio Oil Refineries, Ltd. 7/1937 (not listed); 4/1938-1/1952; eliminated 4/1953   NAKINA
2 RORX Radio Oil Refineries, Ltd. 4/38-1/52   NRHS
3 RORX *RADIO OIL REFINERIES, LTD.     PWRC
4 RORX +RED OAK RAIL TRANSPORT, LLC     PWRC