Where I grew up, we only ever gave the last four digits of our number because the whole town and then some was the same. Later, they changed the area code since it was running out of numbers and then we moved to 10-digit dialing. I remember how weird it felt when things like long distance calls just kinda stopped being a thing
I often still do. In japanese, google even became its own verb (possibly because it works phonetically and syntactically) both as google-suru and google-ru (グーグル)