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
HOA HOB HOC HOD HOE HOF HOG HOH HOI HOJ HOK HOL HOM HON HOO HOP HOQ HOR HOS HOT HOU HOV HOW HOX HOY HOZ
HOCA HOCB HOCC HOCE HOCF HOCG HOCI HOCK HOCM HOCO HOCQ HOCR HOCU HOCX
1 HOCX Hunt Oil Co. 1/1943-1/1946   NAKINA
2 HOCX Head-On Collision Line added 4/1957; 10/1957-1/1980; eliminated 1/1991   NAKINA
3 HOCX Head-On Collision Line added 4/57; 10/57-1/80; eliminated 1/91   NRHS
4 HOCX *HUNT OIL CO.     PWRC
5 HOCX *HEAD-ON COLLISION LINE     PWRC
6 HOCX Head-On Collision Line     RSRV