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
G& G0 G1 G2 G3 G4 G5 G6 G7 G8 G9 GA GB GC GD GE GF GG GH GI GJ GK GL GM GN GO GP GQ GR GS GT GU GV GW GX GY GZ
GPA GPB GPC GPD GPE GPF GPG GPH GPI GPJ GPK GPL GPM GPO GPP GPR GPS GPT GPU GPV GPW GPX GPY
GPRB GPRN GPRS GPRU GPRX
1 GPRX Quartermaster Corps, War Department, U.S.A. 7/1937-1/1941   NAKINA
2 GPRX United States of America (War Department, U.S.A.) 7/1935   NAKINA
3 GPRX United States of America 8/1920-7/1932   NAKINA
4 GPRX Quartermaster Corps, War Department, U.S.A. Apr-38   NRHS
5 GPRX UNITED STATES OF AMERICA WAR DEPARTMENT (WW II AND EARLIER)     PWRC