Oklahoma has a large network of numbered highways maintained by the state.

Individual counties may establish a numbering system to apply to roads that they maintain.

29th and May Avenue in Oklahoma City and veered southwest to Mustang, Union City and Minco before continuing west through Binger, Eakly, Cordell and Sayre and then crossing the Texas border near Sweetwater, was redesignated as SH-152 over its entire length in 1955.

Where it headed south, passing through Vanoss and then to Roff, where it turned east to Fittstown.

Many times, these bear the same number as the parent highway, with a letter suffix.

There are also a few unrelated highways that are designated in completely different parts of the state with the same number.