There is an interesting report at the link below titled, “Our Numbered Days: The Evolution of the Area Code”.
This report is more about the evolution of the telephone from the hand crank wall phone to the smart phone.
The telephone office in my home town of Sioux Falls, South Dakota was converted to dial in the 1950‘s by Automatic Electric (AE).
Prior to the dial conversion we had alpha-numeric telephone numbers containing four digits followed by a letter which was verbally given to an operator after she gave the time honored invitation, “number please.”
Lincoln, Nebraska already had dial phones when we moved there. Our number had an “Ivanhoe” prefix.
On the farm it was more primitive. You picked up the earpiece on the wall mounted phone to summon the operator. If you wanted to call someone on your party line, you would ring them yourself using the hand crank. Their number could be “two longs and one short”
Your number may be “one long and three shorts” and that’s how the operator, or anyone else on your party-line, could reach you.
There were often four or five on each party-line. It was common for others on the party-line to listen in on everyone’s calls.
Comments like, “Nelda, are you listening in?” were not uncommon,
When Hee-Haw’s Junior Samples kicked the bumper of a 1929 Ford and held up a sign with his telephone number BR-549 it brought back memories for lots of older folks.
Another humorous TV take on old telephones was the Lilly Tomlin skit on Laugh In when she sat at an old switchboard and famously said, “One ringy dingy, two ringy dingy’s - is this the party to whom I am speaking?”
The phone has now evolved into a pocket computer. Even kids have smart phones that they use to surf the Internet and sometimes text each other even when they are in the same room.