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
I& I2 I3 I4 I5 I6 I7 I8 I9 IA IB IC ID IE IF IG IH II IJ IK IL IM IN IO IP IQ IR IS IT IU IV IW IX IY IZ
IPA IPB IPC IPD IPE IPF IPG IPH IPI IPK IPL IPM IPN IPO IPP IPR IPS IPT IPU IPW IPX IPZ
IPWX
1 IPWX Alliant Energy added 4/2000; 7/2000-7/2005   NAKINA
2 IPWX Interstate Power Co. added 7/1979; 1/1980-1/1994; eliminated 4/2000   NAKINA
3 IPWX Alliant Energy added 4/2000; 7/2000   NRHS
4 IPWX Interstate Power Co. added 7/79; 1/80-1/94; eliminated 4/2000   NRHS
5 IPWX ALLIANT ENERGY [INTERSTATE POWER COMPANY]     PWRC
6 IPWX Interstate Power (Alliant Energy)     RSRV
7 IPWX ALLIANT ENERGY     SCAC4