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
POA POB POC POD POE POF POG POH POI POJ POK POL POM PON POO POP POQ POR POS POT POU POV POW POX POY POZ
POHC POHG POHK POHL POHP POHQ POHR POHS POHT
1 POHC Pittsburgh & Ohio Central R.R. 7/2005   NAKINA
2 POHC Ohio Central R.R. System added 7/2004   NAKINA
3 POHC Pittsburgh & Ohio Central R.R. (was PIR) added 4/2001; eliminated 7/2004   NAKINA
4 POHC Pittsburgh & Ohio Central Rd. (was PIR) added 4/2001   NRHS
5 POHC PITTSBURGH & OHIO CENTRAL RAILROAD     PWRC
6 POHC Pittsburgh and Ohio Central Railroad     RSRV
7 POHC PITTSBURGH & OHIO CENTRAL RAILROAD     SCAC4