My local directory is now the size of a paperback and does not cover the areas I most need to look up, as I'm on the edge of the area. Yellow pages and Thompsons (similar classified) have also shrunk, and are similarly limited in area. All three cover different areas.
Not only have the number of landlines dropped, but more people are ex-directory. I am because of a particular person, but now, due to spam calls, because of those, too.