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
U0 U1 U2 U3 U4 U5 U6 U7 U8 U9 UA UB UC UD UE UF UG UH UI UJ UK UL UM UN UO UP UQ UR US UT UU UV UW UX UY UZ
UOA UOB UOC UOE UOG UOI UOK UOL UOM UON UOP UOS UOT UOU
UOCR UOCS UOCX
1 UOCX Union Oil Co. of California 8/1920-1/1952   NAKINA
2 UOCX General American Transportation Corp. 7/1954-7/1965   NAKINA
3 UOCX Union Oil Co. of California (General American Transportation Corp.) 10/1966   NAKINA
4 UOCX General American Transportation Corp. 4/1970-1/1994; eliminated 1/1998   NAKINA
5 UOCX General American Marks Co. added 1/1998; 7/2000-7/2005   NAKINA
6 UOCX Union Oil Co. of California 4/38-1/52   NRHS
7 UOCX General American Transportation Corp. 10/57-7/65   NRHS
8 UOCX Union Oil Co. of California (General American Transportation Corp.) Oct-66   NRHS
9 UOCX General American Transportation Corp. 4/70-1/94; eliminated 1/98   NRHS
10 UOCX General American Marks Co. added 1/98; 7/2000   NRHS
11 UOCX GENERAL AMERICAN MARKS CO. [(GATC) GENERAL AMERICAN TRANSPORTATION CORP] UNION OIL CO. of CALIF.)     PWRC
12 UOCX Union Oil Co. of California (GATX)     RSRV