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
N& n/ N0 N1 N2 N3 N4 N5 N6 N7 N8 N9 NA NB NC ND NE NF NG NH NI NJ NK NL NM NN NO NP NQ NR NS NT NU NV NW NX NY NZ
NNA NNB NNC NND NNE NNF NNG NNH NNI NNK NNL NNM NNO NNP NNQ NNR NNS NNT NNV NNW NNX NNY NNZ
NNSB NNSL NNSN NNST NNSX
1 NNSX Newport News Shipbuilding and Dry Dock Co. 7/1965-1/1994; eliminated 7/1996; added 10/1996; eliminated 1/1997; 7/2000-7/2005 (not listed)   NAKINA
2 NNSX Newport News Shipbuilding and Dry Dock Co. 7/65-1/94; eliminated 7/96; added 10/96; eliminated 1/97; 7/2000   NRHS
3 NNSX NEWPORT NEWS SHIPBUILDING & DRY DOCK CO.     PWRC
4 NNSX Newport News Shipbuilding and Dry Dock     RSRV
5 NNSX NEWPORT NEWS SHIPBUILDING & DRY DOC     SCAC4