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
NR& NRA NRB NRC NRD NRE NRF NRG NRH NRI NRJ NRK NRL NRM NRN NRO NRP NRR NRS NRT NRU NRV NRW NRX NRY NRZ
NRPI NRPK NRPP NRPX
1 NRPX Northrop Corp. added 4/1990; 1/1994; eliminated 7/1994; 7/2000-7/2005 (not listed)   NAKINA
2 NRPX National Rosin Oil & Size Co. 8/1920-7/1935   NAKINA
3 NRPX Northrop Corp. added 4/90; 1/94; eliminated 7/94; 7/2000   NRHS
4 NRPX *NATIONAL ROSIN OIL & SIZE CO.     PWRC
5 NRPX +NORTHROP CORPORATION     PWRC
6 NRPX Northrop Corporation     RSRV