Aberdeen and Rockfish GP7 No. 210.

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Aberdeen and Rockfish GP7 No. 210.

Common Carrier Freight Railroads in the United States - A

About 700 railroads operate common carrier freight service in the United States. There are about 150,000 miles (240,000 km) of railroad track in the United States, nearly all standard gauge.

Reporting marks are listed in parentheses.

A&R Terminal Railroad (ART)
Aberdeen and Rockfish Railroad (AR)
Aberdeen, Carolina and Western Railway (ACWR)
Acadiana Railway (AKDN)
Adrian and Blissfield Rail Road (ADBF)
Ag Valley Railroad (AVRR)
Aiken Railway (AIKN) (WCRSC)
Airlake Terminal Railway (ALT) (PGR)
Akron Barberton Cluster Railway (AB) (WLE)
Alabama and Gulf Coast Railway (AGR) (GWRR)
Alabama and Tennessee River Railway (ATN) (OMLX)
Alabama Railroad (ALAB) (PREX)
Alabama Southern Railroad (ABS) (WATX)
Alabama Warrior Railway (ABWR) (WATX)
Alamo Gulf Coast Railroad (AGCR)
Alamo North Texas Railroad (ANTX)
Alaska Railroad (ARR)
Albany and Eastern Railroad (AERC)
Albany Port Railroad (APD)
Alexander Railroad (ARC)
Aliquippa and Ohio River Railroad (AOR) (GWRR)
Allegheny Valley Railroad (AVR) (CLEX)
Alliance Terminal Railroad (ATR) (QTS) (OMLX)
Alton and Southern Railway (ALS) (UP)
AN Railway (AN) (GWRR)
Angelina and Neches River Railroad (ANR)
Ann Arbor Railroad (AA) (WATX)
Apache Railway (APA)
Appalachian and Ohio Railroad (AO) (PLTX)
APS Cholla Power Plant Railroad (APSX)
Arcade and Attica Railroad (ARA)
Arizona and California Railroad (ARZC) (GWRR)
Clarkdale Arizona Central Railroad (AZCR) (WRRG)
Arizona Eastern Railway (AZER) (GWRR)
Arkansas–Oklahoma Railroad (AOK)
Arkansas and Missouri Railroad (AM)
Arkansas Midland Railroad (AKMD) (GWRR)
Arkansas Southern Railroad (ARS) (WATX)
Arkansas, Louisiana and Mississippi Railroad (ALM) (GWRR)
Ashland Railway (ASRY)
Ashtabula, Carson and Jefferson Railroad (ACJR)
Athens Line, LLC (ABR) (GRWR)
AT&L Railroad (ATLT)
Atlantic and Western Railway (ATW) (GWRR)
Austin Western Railroad (AWRR) (WATX)
Autauga Northern Railroad (AUT) (WATX