Maybe where you live, but we still get a phone book in the mail every year. Not sure who publishes it anymore.
I wish there was such a thing as a phone directory that had personal phone #s in it like the old days. If you don't know someone's cell # AFAIK there's no way to look it up.
The only grandparent I ever knew was my father's father. Paternal grandmother died when I was a toddler, never met either of my mother's parents.
As hard of a guy as my father was to get to know, he was an open book compared to my grandfather. It didn't help that he spoke very little English (despite having immigrated in the early 19-teens), my Russian wasn't much better. Fortunately, my father was a solid guy.
I grew up thinking old people didn't speak English. Much of my grandparents' generation in our town were immigrants...there was enough of a community where they could get by with the old language. It wasn't until I was almost a teenager and met one of my friends' grandparents I discovered otherwise.