Established in 1952, as a mostly new primary route around Shelby, and has not changed since.

It is here where the A256 becomes a primary route.

Established in 1999 as a new primary route, it has not changed since then.

The N26 is the first "extra" allocation of a national primary route other than the original 25.

This section is no longer on the primary route for completion in the first phase.

The primary route of transmission has not yet been identified.

It is a primary route for all of its length.

The town is easily accessed from the N4 national primary route.

It is a primary route in the zone number 1.

It was their primary route if they had to go in in support.