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&BT H&BV H&BY
1 H&BV Houston & Brazos Valley Ry. (Co.) 7/1923-7/1954   NAKINA
2 H&BV Houston & Brazos Valley Ry. 4/38-1/52   NRHS
3 H&BV HOUSTON & BRAZOS VALLEY RWY. CO.     PWRC