Getting another phone number will not stop the calls. These callers already have every p[hone number that can be had. All they have to do is put the numbers 0 through 9 together in the right combination (and the computers can be made to do this very well) and sooner or later you will be getting calls again: such as: 323-870-1700, 1701, 1702, 1703, 1704, 1705 and so on.
I just signed up for the DNC list and after having this new phone number for over 6months I am now starting to receive these calls.... coincidence?? I think not. I never got any of "these" calls before. Time to get another new number and I surely WILL NOT sign it up to the DNC list.