High Quality Content by WIKIPEDIA articles! U.S. Route 64 is the longest numbered route in the U.S. state of North Carolina, running 604 miles (972 km) from the Tennessee state line to the Outer Banks. The route passes through the westernmost municipality in the state, Murphy, and one of the most easternmost municipalities, Manteo, making US 64 a symbolic representation of the phrase "from Murphy to Manteo" which is used to refer to the expanse of the state. The highway is a major east-west route through the central and eastern portion of the state.