HXX meaning in Regional ?

Answer: What is Hay, New South Wales, Australia mean?

Hay is a town in the western Riverina region of south western New South Wales, Australia. It is the administrative centre of Hay Shire local government area and the centre of a prosperous and productive agricultural district on the wide Hay Plains.

Located approximately midway between Sydney and Adelaide at the junction of the Sturt, Cobb and Mid-Western Highways, Hay is an important regional and national transport node. The town itself is built beside the Murrumbidgee River, part of the Murray-Darling river system; Australia's largest. The main business district of Hay is situated on the north bank of the river.

reference

Full Form	Category
Hay	Airport Code
C++ Header	File Type
Hay, New South Wales, Australia	Regional