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
C& C0 C1 C2 C3 C4 C5 C6 C7 C8 C9 CA CB CC CD CE CF CG CH CI CJ CK CL CM CN CO CP CQ CR CS CT CU CV CW CX CY CZ
CSA CSB CSC CSD CSE CSF CSG CSH CSI CSJ CSK CSL CSM CSN CSO CSP CSQ CSR CSS CST CSU CSV CSW CSX CSY CSZ
CSDA CSDB CSDC CSDD CSDF CSDG CSDH CSDI CSDJ CSDK CSDL CSDM CSDN CSDO CSDP CSDQ CSDR CSDT CSDU CSDW CSDX CSDY CSDZ
1 CSDX Metropolitan Water Reclamation District of Greater Chicago added 10/1989; 1/1994; eliminated 10/1994; added 10/1996; eliminated 1/1997; 7/2000-7/2005 (not listed)   NAKINA
2 CSDX Metropolitan Sanitary District of Greater Chicago added 7/1956; 10/1957-1/1980; eliminated 10/1989   NAKINA
3 CSDX Sanitary District of Chicago 7/1932-7/1954; eliminated 7/1956   NAKINA
4 CSDX Sanitary District of Chicago 4/38-1/52; eliminated 7/56   NRHS
5 CSDX Metropolitan Sanitary District of Greater Chicago added 7/56; 10/57-1/80; eliminated 10/89   NRHS
6 CSDX Metropolitan Water Reclamation District of Greater Chicago added 10/89; 1/94; eliminated 10/94; added 10/96; eliminated 1/97; 7/2000   NRHS
7 CSDX METRO. WATER RECLAMATION DISTRICT OF GREATER CHICAGO     PWRC
8 CSDX Metropolitan Water Reclamation District of Greater Chicago     RSRV
9 CSDX METRO. WATER RECLAMATION DISTRICT O     SCAC4