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

HAA HAB HAC HAD HAE HAF HAG HAH HAI HAJ HAK HAL HAM HAN HAO HAP HAQ HAR HAS HAT HAU HAV HAW HAX HAY HAZ

HAHE HAHK HAHN HAHU HAHX