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
H& H0 H1 H2 H3 H4 H5 H6 H7 H8 H9 HA HB HC HD HE HF HG HH HI HJ HK HL HM HN HO HP HQ HR HS HT HU HV HW HX HY HZ
HPA HPC HPD HPE HPF HPG HPH HPI HPJ HPK HPL HPM HPN HPO HPP HPR HPS HPT HPU HPW HPX HPY
HPTC HPTD HPTF HPTG HPTI HPTJ HPTL HPTN HPTO HPTP HPTU HPTX
1 HPTD High Point, Thomasville & Denton R.R. Co. 1/1975-7/2005   NAKINA
2 HPTD High Point, Thomasville & Denton R.R. Co. 1/75-7/2000   NRHS
3 HPTD HIGH POINT, THOMASVILLE & DENTON RAILROAD CO.     PWRC
4 HPTD High Point, Thomasville and Denton Railroad     RSRV
5 HPTD High Point, Thomasville & Denton R.R. Co.   USA TRAFFIC