I have a Seattle area code and for the last year or so I've been getting daily calls from various 206 numbers that also match the first 3 digits of my number.

I have a Seattle area code and for the last year or so I've been getting daily calls from various 206 numbers that also match the first 3 digits of my number. I answered the first one and there is no one on the line. After that I block each new number but they keep calling. I guess it'll eventually end as there are only 9998 possible numbers.