In 1926, the U.S. state of Arkansas renumbered its highways into a more traditional format.

The system to be replaced was established in 1924 as Arkansas' first comprehensive highway plan.

The Arkansas State Highway Commission implemented the system of United States Numbered Highways also around 1926, and thus Arkansas decided to number its highways and to drop the 1924 letter-number format.

This resulted in the first true numbering of state highways in Arkansas.

The U.S. route designations 61, 63, 64, 65, 67, 70, 71, 165, and 167 would have conflicted with state highway designations, so there were no Arkansas state highways with these numbers.