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
H&B H&S H&T
H&TC
1 H&TC Houston & Texas Central R.R. 4/1938-7/1954   NAKINA
2 H&TC Houston & Texas Central R.R. (Southern Pacific Lines in Texas and Louisiana) 7/1932-7/1936   NAKINA
3 H&TC Houston & Texas Central R.R. (Southern Pacific Lines in Texas and Louisiana/Southern Pacific Lines West of Portland, Ogden, El Paso and Tucumcari) 7/1930   NAKINA
4 H&TC Houston & Texas Central R.R. (Southern Pacific Lines in Texas and Louisiana) 8/1920-7/1923   NAKINA
5 H&TC Houston & Texas Central R.R. 4/38-1/52   NRHS
6 H&TC HOUSTON & TEXAS CENTRAL RAILROAD (SOUTHERN PACIFIC LINES IN TEXAS & LOUISIANA)     PWRC