When my family got our first phone, our number was 72051, that was the entire number, if you wanted to make a long distance call, you had to dial the operator and tell her what number and city you were calling.
Anybody who wanted to call us from within the same town had only to dial the last 4 numbers. Our phone was a "party line" phone, which doesn't mean what you may be inclined to think. If the phone rang with long rings, it was for us. Short rings were for the people we shared the party line with.
That was about 1955, small town Missouri.
P.S. You could get any color phone you wanted, as long as it was black.
I remember those days too! We shared a party line with the people down the street. I remember my aunt’s number in Chicago VI73514. That was back in the early 60’s. Funny how some stuff just sticks with you.