Real world company prefixes
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Y2 YA YB YC YD YE YF YG YH YI YJ YK YL YM YN YO YP 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
YSMS YSMX
Y2 YA YB YC YD YE YF YG YH YI YJ YK YL YM YN YO YP 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
YSMS YSMX
| 1 | YSMS | YOUR SPORTS MEMORABILIA STORE | SCAC4 | ||
| 2 | YSMX | Panama Gypsum Co. | added 1/62; 7/65-1/75; eliminated 4/76 | NRHS | |
| 3 | YSMX | RETIRED09-29-92 ATP (1676) [CANADIAN GYPSUM CO. LTD.; PANAMA GYPSUM CO.] | PWRC | ||
| 4 | YSMX | Panama Gypsum Co. | added 1/1962; 7/1965-1/1975; eliminated 4/1976 | NAKINA | |
| 5 | YSMX | Canadian Gypsum Co., Ltd. | added 4/1976; 1/1980; eliminated 4/1991 | NAKINA | |
| 6 | YSMX | Canadian Gypsum | RSRV | ||
| 7 | YSMX | Canadian Gypsum Co., Ltd. | added 4/76; 1/80; eliminated 4/91 | NRHS |