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
YKA YKC YKL YKM YKR YKS YKT
1 YKR Yorkrail, Inc. added 10/1989; 1/1994; eliminated 4/2000   NAKINA
2 YKR York Ry. Co. added 4/2000; 7/2000-7/2005   NAKINA
3 YKR Yorkrail, Inc. added 10/89; 1/94; eliminated 4/2000   NRHS
4 YKR York Ry. Co. added 4/2000; 7/2000   NRHS
5 YKR YORK RAILWAY [YORKRAIL, INC.]     PWRC
6 YKR Yorkrail (York Railway)     RSRV
7 YKR Yorkrail, Inc.   USA TRAFFIC