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
I& I2 I3 I4 I5 I6 I7 I8 I9 IA IB IC ID IE IF IG IH II IJ IK IL IM IN IO IP IQ IR IS IT IU IV IW IX IY IZ
ISA ISB ISC ISD ISE ISF ISG ISH ISI ISK ISL ISM ISN ISO ISP ISR ISS IST ISU ISV ISW ISX ISY
ISTB ISTC ISTF ISTK ISTN ISTT ISTU ISTV ISTW ISTX
1 ISTX North American Car Corp. added 10/1959; 4/1961-1/1975; eliminated 10/1979; 1/1980   NAKINA
2 ISTX Interstate Tank Car Corp. 8/1920-10/1957; eliminated 10/1959   NAKINA
3 ISTX North American Car Corp. added 10/59; 4/61-1/80   NRHS
4 ISTX Interstate Tank Car Corp. 4/38-10/57; eliminated 10/59   NRHS
5 ISTX NORTH AMETRICAN CAR CORP. [INTERSTATE TANK CAR CORP.]     PWRC