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
P& P0 P1 P2 P3 P4 P5 P6 P7 P8 P9 PA PB PC PD PE PF PG PH PI PJ PK PL PM PN PO PP PQ PR PS PT PU PV PW PX PY PZ
P&E P&I P&L P&M P&N P&O P&P P&R P&S P&W
P&NW
1 P&N Seaboard Coast Line R.R. Co. eliminated 4/1975   NAKINA
2 P&N Seaboard Coast Line R.R. Co. eliminated 4/75   NRHS
3 P&N SEABOARD COAST LINE RAILROAD CO. [PIEDMONT & NORTHERN RWY.]     PWRC
4 P&NW (The) Prescott & Northwestern R.R. (Co.) 7/1923-10/1966   NAKINA
5 P&NW Prescott & Northwestern R.R. 4/38-10/66   NRHS
6 P&NW PRESCOTT & NORTHWESTERN RAILROAD CO.     PWRC