Übersicht der Bahnverwaltungen

Kürzel	Bahnverwaltung
NACR	Nashville & Ashland City Railroad
NACX	== NATX
NADX	== NATX
NAFX	== NATX
NAHX	== NATX
NAP	Narrangansett Pier Railroad Co.
NATX	North American Car Corp.
NAUG	Naugatuck Railroad
NB	Northhampton & Bath (1979++)
NBER	Nittany & Bald Eagle Railroad Co.
NBNR	Nicolet Badger Northern Railroad, Inc.
NBR	Narrangansett Bay Railroad
NBW	New Berlin & Winfield
NC	Nashville, Chattanooga & St.Louis Railway (1957 --> LN)
NCBX	New Century Rail Transport LLC
NCCC	Nevada Consolidated Copper Company
NCCX	Neosho Construction
NCFX	== NATX
NCHX	== NATX
NCIR	New Castle Industrial Railroad
NCIX	Nova Chemicals Incorporated
NCLX	Nova Chemicals Incorporated
NCMX	North Carolina Transportation Museum
NCMX1	Niklor Chemical
NCNG	Nevada County Narrow Gauge Railroad
NCO	North Central Oklahoma
NCPA	North Carolina Ports Authority
NCPR	North Carolina Ports Railway Commission
NCRA	North Coast Railroad Authority
NCRC	Nebraska Central Railroad Co. [Rio Grande Pacific Corp.]
NCRR	North Coast Railroad
NCRR'	North Carolina Railroad Co.
NCRX	== NATX
NCSL	Nashville, Chattanooga & St. Louis (1957 --> LN)
NCTD	North County Transit District (Coaster) (San Diego Northern)
NCTR	North Central Texas
NCTX	== PLMX
NCVA	North Carolina & Virginia Railroad Co. [RailTex]
NCVB	North Carolina & Virginia Rr., Virginia Southern Division
NCYR	Nash County Railroad Corp. [G&O]
NDCR	N.D.C. Railroad Co.
NDW	Notre Dame & Western
NDYX	== RUSX
NECR	New England Central [RailTex]
NEFT	New England Fuel & Transportation
NEGS	New England Southern Railroad Co., Inc.
NEKM	Northeast Kansas & Missouri Railway [RailTex]
NELX	National Equipment Leasing
NENE	Nebraska Northeastern Railway Co. [TXNW]
NEO	Northeast Oklahoma Railway (1967 --> SLSF)
NERR	Nashville & Eastern Railroad Corp.
NFD	Norfolk, Franklin & Danville
NGA	New Georgia Railroad
NH	New York, New Haven and Hartford Railroad (1.1969 --> PC)
NHCR	New Hampshire Central Railroad, Inc.
NHL	National Helm Leasing
NHN	New Hampshire Northcoast Corp.
NHRR	New Hope & Ivyland Railroad Co.
NHV	New Hope Valley Railway
NHVT	New Hampsire & Vermont Railroad Co.
NIAX	Niagara & Western New York (1.2003+)
NICTD	Northern Indiana Commuter Transportation District
NIM	== IB0738
NIMX	Naporano Iron & Metal
NIRC	Northeast Illinois Regional Commuter Railroad Corp. (Metra)
NIS	Nevada Industrial Switching [D. J. Joseph]
NITX	Norfolk International Terminal
NIWX	Northern Illinois & Wisconsin Railway
NJ	Niagara Junction (1976 --> CR)
NJCT	Napierville Jct
NJDOT	New Jersey's Department of Transportation(1980 --> NJT)
NJII	New Jersey, Indiana and Illinois Railroad
NJT	New Jersey Transit
NJTT	New Jersey Terminal & Transfer
NKCR	Nebraska, Kansas & Colorado Railway
NKP	Nickel Plate Road (--> NW)
NLA	xxxxN
NLAX	National Aeronautics and Space Administration (NASA)
NLG	North Louisiana & Gulf Railroad Co. (--> MDR)
NLLX	Northern Line Layers, Billings MT
NLR	Northern Lines Railway
NLRX	National Lime & Stone
NMOR	Northern Missouri Railroad Co.
NMRX	New Mexico Rail Runner
NMT	National Museum of Transport, St.Louis
NN	Northern Nevada Railroad
NN'	Nevada Northern Railroad
NNRM	Nevada Northern Railway Museum
NNSX	Newport News Shipbuilding and Drydock, VA
NNW	Nebraska Northwestern
NOGC	New Orleans & Gulf Coast [Rio Grande Pacific Corp.]
NOKL	Northwestern Oklahoma Railroad Co.
NOLC	New Orleans Lower Coast Railroad [1956 --> MP]
NOLR	New Orleans Lower Coast Railroad Co., Inc. [RailTex]
NONE	New Orleans & Northeastern (--> SOU)
NOPB	New Orleans Public Belt Railroad
NORX	Northern Indiana Public Service
NOT	New Orleans Terminal (--> SOU)
NOUT	New Orleans Union Passenger Terminal
NOWR	Northern Ohio & Western [OmniTrax]
NP	Northern Pacific Railway (1970 mit GN,CBQ und SPS --> BN)
NPBL	Norfolk & Portsmouth Belt Line Railroad Co.
NPPX	Nebraska Public Power District
NPR	Northern Plains Railroad
NPRR	Nezperce-Pomeroy
NPT	Northern Pacific Terminal (1965 --> PTRC)
NREX	National Railway Equipment Corp.
NRHS	Baltimore Chapter NRHS
NRHX	National Railway Historic Society
NRI	Nebkota Railway Inc. [5.2017 --> NENE ]
NRL	== NREC
NRLX.1	loeschen 22.03.15
NRLX.2	loeschen 22.03.15
NRR	Nobles & Rock Railroad
NRTX	Music City Star (Nashville Regional Transportation Agency)
NS	Norfolk Southern Railway (seit 1990)
NS1	Norfolk Southern Railway Co. (1.1974 --> SOU)
NSAX	National Steel Corporation
NSBT	North Sunbury Bulk Transfer
NSHR	North Shore Railroad Co.
NSL	North Short Line
NSMX	Northshore Mining
NSPX	Northern States Power Company, MN
NSR	Newburgh & South Shore Railroad
NSRC	North Stratford Railroad Co.
NSRR	North Shore Scenic Railroad
NSSR
NSSX	National Salvage and Service Corporation
NStL	Norwood & St.Lawrence (1975+)
NSZ	== NS
NTR	Natchez Trace Railroad (umbenannt in MSC)
NTRY	Nimishillen & Tuscarawas Railway Co.
NTZR	Natchez Railway, Inc.
NUCX	Nucor Steel, Crawfordsville
NUCX.1	Nucor Steel - Jewett Plant TX
NUCX.2	Nucor Steel - Darlington NC
NUCX.3	Nucor Steel - Flora MS
NUCX.4	Nucor Steel - Plymouth UT
NUCXx	Nucor Steel, Crawfordsville
NVR	Northern Vermont Railroad [2002-->Railworld]
NVRR	Napa Valley Railroad Co.
NVTC	Northern Virginia Transportation Commission (siehe VRE)
NW	Norfolk & Western (6.1982 --> NS)
NWLX	Nationwide Locomotive Service LLC
NWP	Northwestern Pacific Railroad
NWRR	Nashville & Western Railroad Corp.
NWSX	Northwestern Steel & Wire Co
NWZ	== NW
NYA	New York & Atlantic
NYC	New York Central (1968 mit PRR --> PC)
NYCH	New York Cross Harbor Railroad Terminal Co.
NYCStL	New York, Chicago & St. Louis == NKP
NYCTA	New York City Transportation Authority
NYGL	New York & Greenwood Lake Railroad
NYLE	New York & Lake Erie Railroad [Trillium]
NYNJ	New York New Jersey Rail
NYOG	New York & Ogdensburg
NYOM	New York & Oswego Midland Railroad (--> NYOW)
NYOW	New York, Ontario & Western Railway (1957++)
NYSW	New York, Susquehanna & Western Railway
NYSX	New York State Electric & Gas
NZPR	Nezperce Railroad