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
HDA HDB HDC HDD HDE HDF HDG HDH HDI HDJ HDK HDL HDM HDN HDO HDP HDR HDS HDT HDU HDV HDW HDX HDY
HDXC HDXL HDXN HDXO HDXS HDXU
1 HDX Hooker-Detrex Inc. 1/1950-7/1954; eliminated 10/1956   NAKINA
2 HDX Hooker-Detrex Inc. Jan-52   NRHS
3 HDX HOOKER-DETREX INC.     PWRC
4 HDXC HERDRICH TRANSPORT LLC     SCAC4
5 HDXL HD TRANSPORTATION LLC     SCAC4
6 HDXN HILLSIDE TRANSPORT INC     SCAC4
7 HDXO HENDRIX OIL INC     SCAC4
8 HDXS HAMMOND TRANSPORTATION INC     SCAC4
9 HDXU HDS LINES     SCAC4