Re-routed via Glasgow Southern Orbital route from 2006 between East Kilbride and Newton Mearns. Former A726 between Peel Park and Deaconsbank now renumbered B766 and A727.
Number formerly (pre-1980s) applied to what is now B767 north of Clarkston. A727 number recreated in 2006 following opening of Glasgow Southern Orbital route, with new A727 taking over part of what was formerly numbered A726.
Formerly (from its junction with Paisley Road West) the main road between Glasgow and Irvine. Runs from the A8 near Braehead, via Crookston, Barrhead and Shiflord, into Irvine.
Formerly continued from Howwood to Milliken Park (now B787), round the south east of Johnstone (now unclassified), to Elderslie (now B789) and onto Paisley to Glasgow (now A761).