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
M& M- M0 M1 M2 M3 M4 M5 M6 M7 M8 M9 MA MB MC MD ME MF MG MH MI MJ MK ML MM MN MO MP MQ MR MS MT MU MV MW MX MY MZ
MD& MDA MDB MDC MDD MDE MDF MDG MDH MDI MDJ MDK MDL MDM MDN MDO MDP MDQ MDR MDS MDT MDU MDV MDW MDX MDY MDZ
MDDA MDDB MDDE MDDH MDDK MDDL MDDM MDDN MDDO MDDR MDDX MDDY
1 MDDX Old Line Holding Co., Inc. 7/2000; eliminated 10/2004; 7/2005 (not listed)   NAKINA
2 MDDX Old Line Holding Co., Inc. Jul-00   NRHS
3 MDDX OLD LINE HOLDINGS COMPANY INC.     PWRC
4 MDDX Old Line Holding     RSRV