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
HWA HWB HWC HWD HWE HWF HWG HWH HWI HWJ HWK HWL HWM HWN HWO HWP HWR HWS HWT HWU HWV HWW HWX HWY HWZ
HWCA HWCC HWCG HWCI HWCN HWCQ HWCR HWCT HWCX HWCY
1 HWCX Halliburton Energy Services, Inc. added 4/2004; 7/2005   NAKINA
2 HWCX Halliburton Co. added 10/1960; 4/1961-7/2000; eliminated 4/2004   NAKINA
3 HWCX Halliburton Oil Well Cementing Co. 1/1946-10/1957; eliminated 10/1960   NAKINA
4 HWCX Halliburton Co. added 10/60; 4/61-7/2000   NRHS
5 HWCX Halliburton Oil Well Cementing Co. 1/52-10/57; eliminated 10/60   NRHS
6 HWCX HALLIBURTON ENERGY SERVICES CO. {HALLIBURTON OIL WELL CEMENTING CO.]     PWRC
7 HWCX Halliburton     RSRV
8 HWCX HALLIBURTON ENERGY SERVICES INC     SCAC4
9 HWCX Halliburton Co.   USA TRAFFIC