I feel very lucky to have a phone number from when I lived in northern NY for a few years. There are 4 people from that area code that I might ever want a phone call from, and they are all in my address book. Any other 315 number is safe to ignore.
I'm reasonably nearby the major city that has my cell phone's area code but I'm in a different area code and most people who are in the city who could even potentially call me are in my contact list. (For a long time I used to regularly get calls from areacode-exchange-random 4 digits which I knew to safely ignore/block.)