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
Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7 Y8 Y9 YA YB YC YD YE YF YG YH YI YJ YK YL YM YN YO YP YQ YR YS YT YU YV YW YX YY YZ
YSA YSB YSC YSD YSE YSF YSH YSI YSJ YSL YSM YSN YSR YSS YST YSU YSV
YSTC YSTD YSTK YSTM YSTN YSTP YSTR YSTS YSTT YSTU YSTX
1 YSTX The Youngstown Sheet & Tube Co. 8/1920-4/1970; eliminated 7/1972; 1/1975-1/1980   NAKINA
2 YSTX The Youngstown Sheet & Tube Co. 4/38-1/80   NRHS
3 YSTX RETIRED 02-19-91 FET (ACI 1677) [YOUNGSTOWN SHEET & TUBE CO.]     PWRC
4 YSTX Youngstown Sheet and Tube     RSRV