When the phone was invented , you dialed by sending clicks down the line , since no clicks would mean that you didnt dial a number , 0 was represented as 10 clicks.
Very easy in fact. You just have to do some sums: add the same letter together: a b c c a b b c a So you have for a: 1+5+9=15 b: 2+6+7=15 c: 3+4+8= 15 If you had a 0 for the first row on the first collum, it wouldn't be true.
It's because 0 is a loner that has zero friends, so he stays away from the other numbers where he feels more comfortable.
Because of the saying "One is the loneliest number," they decided to change the numerical pads on calculators/phones/etc. Do you notice on how old fashion phones (with the circular dial) the 0 comes before 1? The phrase made this change, so 1 can never be the loneliest number. (Dear god I hope none of you actually believe this)
I would guess because 0 was also how you contacted the operator originally so it's down below with the other functions
I tried to call 42... and there's this lady who said that the number I called didn't exist inside my Phone... don't tell me... is she a Goddess of another world?