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
HCA HCB HCC HCD HCE HCF HCG HCH HCI HCJ HCK HCL HCM HCN HCO HCP HCQ HCR HCS HCT HCV HCW HCX HCY HCZ
HCBC HCBP HCBT HCBU HCBX
1 HCBX Chevron Phillips Chemical Co., LP added 4/2002; 7/2005   NAKINA
2 HCBX CHEVRON PHILLIPS CHEMICAL CO. LP     PWRC
3 HCBX Chevron Phillips Chemical     RSRV
4 HCBX CHEVRON PHILLIPS CHEMICAL COMPANY L     SCAC4