One route of 4.13 miles (6.65 km) begins at Madison County Road 3345 (CR 3345) and runs northwest to Highway 23 at Aurora.

A fourth route of 5.82 miles (9.37 km) begins at Lost Bridge Village and runs north to US Highway 62 in Garfield.

[3] It runs northwest from US 412 near Old Alabam to AR 23 in Forum near Withrow Springs State Park.

[5] Highway 127 was first designated between 1927 and September 1, 1928, by renumbering State Road 19 between Old Alabam and Forum.

[8] The Aurora segment was created on June 28, 1973, pursuant to Act 9 of 1973 by the Arkansas General Assembly.