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
RTA RTB RTC RTD RTE RTF RTG RTH RTI RTJ RTK RTL RTM RTN RTO RTP RTQ RTR RTS RTT RTU RTV RTW RTX RTY RTZ
RTOA RTOB RTOC RTOD RTOG RTOH RTOI RTOL RTON RTOO RTOP RTOQ RTOS RTOW RTOZ
1 RTOZ (REAZ) RETIRED 04-06-93 ATP (ACI 2490)     PWRC