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
GCA GCB GCC GCD GCE GCF GCG GCH GCI GCK GCL GCM GCN GCO GCP GCQ GCR GCS GCT GCU GCV GCW GCX GCY
GCSF GCSI GCSK GCSR GCST GCSU GCSX GCSY GCSZ
1 GCSR Gulf, Colorado & San Saba Ry. 1/1994-7/2000   NAKINA
2 GCSR Gulf, Colorado & San Saba Ry. 1/94-7/2000   NRHS
3 GCSR GULF, COLORADO & SAN SABA RAILWAY     PWRC
4 GCSR Gulf, Colorado and San Saba Railway     RSRV
5 GCSR GULF COLORADO & SAN SABA RAILWAY     SCAC4