Wendover Boulevard was numbered US 40 through what are now the cities of West Wendover and Wendover beginning in 1926. US 40 was the major thoroughfare between San Francisco, in the west, and Atlantic City, New Jersey, in the east. US 40 was routed along the Wendover Cut-off, now known as Frontage Road, which was retained as a service road after the completion of the I-80. The US 40 designation was removed by 1976 or 1977, when I-80 was completed through the area. The designation of roadway now numbered US 93 Alt. has changed twice in the past. Between 1932 and 1953, it was designated US 50, and between 1954 and either 1978 and 1979, it was designated US 50 Alt.