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

HNA HNB HNC HND HNE HNF HNG HNH HNI HNJ HNK HNL HNM HNN HNO HNP HNR HNS HNT HNV HNW HNX HNY HNZ

HNOC HNOG HNOI HNOM HNOO HNOQ HNOT