As of 2009, regional routes are being renumbered with 3-digit national numbers.

The route 9, as indicated above, was renumbered into routes 91, 92, 93, and 94.

This route was renumbered to K-34 the next year.

The route was renumbered 70 on 16 July 1973.

However, in 1980 the route was renumbered as a northern "extension" of Highway 6.

In 2009 regional routes were being renumbered with 3-digit national numbers.

In 1966, when all the company's routes were renumbered, the sea front service became number 103.

The original route through the city was renumbered 197 at this time.

In April 1997 route 112 was renumbered 452 and 49 as 453.

The route was renumbered in the mid-1960s when I-29 was opened.