212 is special for another reason.
Before push-button phones, we had dial phones and pulse dialing. You would turn the dial to make a call. Dialing a “2” was easier than dialing a “9” because your finger didn’t need to move so far around the dial.
picture of a dial phone
Anyway, NYC was assigned the 212 area code because it took the fewest movements (2 + 1 + 2 = 5) of any place in the US. Los Angeles was 213 (2+1+3=6) and Chicago was 312 (3_1_2=6).
Bigger cities got faster dialing. A place like Miami (305) took 8 dial strokes.
So 212 has a certain historical panache if you ever used a dial phone.