Bnsf Railway Radio Frequencies, S. Accessible, productive, growing. BNSF Railway The BNSF Railway Company is the biggest freight railroad network in North America. They are one of ten Class I railroads. BNSF operates one of the largest freight railroad networks in North America, with 32,500 miles of rail across the western two-thirds of the United States. Secure login page for accessing BNSF Railway's customer tools and services. Select your Station of Departure Reverse trip BNSF Railway (reporting mark BNSF) is the largest of the many freight railroads in the United States. They have more than 8,000 locomotives. BNSF operates one of the largest freight railroad networks in North America, with 32,500 miles of rail across the western two-thirds of the United States. . pea, gfr, cdbwrc, pq5, wgp, bld, huju, n0lg, n61yp, ybrous,