Übersicht der Bahnverwaltungen

Kürzel	Bahnverwaltung
DAFX	Department of Defense (siehe DODX)
DAIR	Dakota & Iowa Railroad
DAKR	Dakota Rail, Inc.
DAKX	DAK Americas LLC
DANW	Danville & Western
DAPX	Dairyland Power Coop, WI
DART	Dallas Area Rapid Transit
DAVX	W. R. Grace and Company - Conn. Davison Chemical Division
DAX	Diamond Shamrock Chemicals Co.
DBGX	DeBruce Grain Inc.
DC	Delray Connecting Railroad Co.
DCCX	McDonnell Douglas Corporation
DCFB	Dodge City, Ford & Bucklin Railroad Co. (9.2000 --> BHW )
DCFX	== PLMX
DCLR	Delaware Coast Line Railroad Co.
DCON	Detroit Connecting Railroad
DCR	Delmarva Central Railroad [Carload Express]
DCRR	Dubois County Railroad
DCTA	Dade County Transportation Administration
DCTX	== PLMX
DEEX	Detroit Edison Co.
DEGX	Mississippi Power Co.
DER	Dunn - Erwin Railway
DESX	Diesel Electric Service Corp.
DGHX	North American Chemical
DGNO	Dallas, Garland & Northeastern Railroad [RailTex]
DGVR	Durbin & Greenbrier Valley Railroad, Inc.
DH	Delaware & Hudson Railroad [CP Rail]
DHMX	MCM Management Corp.
DHNY	== DH
DIR	Duluth & Iron Range Railway Co.
DIRR	Dixie River Railroad
DJJX	David J.Joseph Co. (siehe JTPX)
DJPX	David J.Joseph Co.
DJRX	David J.Joseph Co.
DJTX	David J.Joseph Co.
DKPX	Duke Power Company
DKS	Doniphan, Kensett & Searcy Railway
DL	Delaware-Lackawanna Railroad Co., Inc. [GVT]
DLA	Defense Logistics Agency
DLCT	Dayton, Lebanon & Cincinnati Traction Co.
DLCX	Diesel Locomotive Co.
DLMX	Daylight Locomotive and Machine Works, Portland OR
DLS	Delaware, Lackawaxen and Stourbridge Railroad
DLSX	Diesel Supply Company Incorporated
DLW	Delaware, Lackawanna & Western (10.1960 mit ERIE --> EL)
DLWR	Depew, Lancaster & Western Railroad Co., Inc. [GVT]
DM	Detroit & Mackinac Railway Co. (93 --> LSRC)
DMCI	Des Moines & Central Iowa (1984 --> CNW)
DME	Dakota, Minnesota & Eastern Railroad Corp.
DMIR	Duluth, Missabe & Iron Range Railway Co.
DMM	Dansville & Mount Morris RR Co.
DMT	Detroit Marine Terminal
DMU	Des Moines Union Railway Co.
DMVW	Dakota, Missouri Valley & Western Railroad, Inc.
DN	Dakota Northern
DNE	Duluth & Northeastern Railroad Co.
DODX	Department of Defense
DOIX	Department of Interior
DORY	Dowdon Railway
DoS	Donora Southern
DOTX	U.S. Department of Transport - Federal Rd. Administration
DOWX	Dow Chemical Co.
DPC	DPC (Basic Magnesium Company), Henderson NV
DPCX	Defense Plant Corp., Columbus MT
DPDZ	== DH
DPE	Dan Patch Electric Railroad
DPGX	Tractech Systems
DQE	DeQueen & Eastern Railroad Co.
DR	Dardanelle & Russellville Railroad Co.
DRG	Denver & Rio Grande (--> DRGW)
DRGW	Denver & Rio Grande Western [SP]
DRI	Davenport, Rock Island & North Western Railway Co.
DRIR	Denver Rock Island
DRR	Delaware Railroad
DRRV	Dover & Rockaway River Railroad
DRSX	D.O.T. Rail Services Incorporated
DRSXx	DOT Rail Service of LaSalle IL
DRWY	Denver Railway, Inc. (--> DRIR)
DS	Durham & Southern Railway (1976--> SCL)
DSA	Duluth, South Shore & Atlantic (1.1961 --> SOO)
DSCX	Diesel Supply Leasing
DSL	Dakota Short Line Railroad
DSNGRR	Durango & Silverton Narrow Gauge Railroad
DSRC	Dakota Southern Railway Co.
DSRR	Delta Southern Railroad Co.
DSRX	Downeast Scenic Railroad
DSSX	Detroit Salt Company, L.C.
DT	Decatur Junction [Pioneer Railcorp]
DTEX	DTE Railcar Services
DTFR	U.S. Department of Transport - Federal Rd. Administration
DTFX	DTE Railcar Services
DTI	Detroit, Toldedo & Ironton (--> GTW)
DTIZ	== DTI
DTLX	Delta Tank Lines
DTR	Denver Terminal (--> DRWY)
DTRR	Danbury Terminal Railroad Company
DTRY	Detroit Terminal Railway (1981 --> CR)
DTS	Detroit & Toldedo Shore Line (--> GTW)
DU	Delaware & Ulster Railroad
DUPX	E.I. DuPont de Nemours & Co.
DUT	Denver Union Terminal
DV	Delaware Valley Railway Company, Inc.
DVR	Death Valley Railroad
DVRR	Dry Valley Railroad
DVRR1	Delaware Valley Railroad (1938 stillgelegt)
DVS	Delta Valley & Southern Railway Co.
DVSZ	== DVS
DWP	Duluth, Winnipeg & Pacific Railway Co. [CNNA]