I remember the 2 area codes. In fact I remember when the exchange used be a mneomonic for what area of the area code you lived in. And that is how you gave your number. For example, Lucy and Desi's number on I Love Lucy was 212 685 9975 and one would say Murray Hill 59975. You knew the apartment was on the East Side in the Murray Hill section of the city. Our exchange in our section of Pittsfield began with 44, so we would gave our number as Hillcrest x xxxx.