Who I have the same questioned this topic

I have been getting a ridiculous amount of calls from spoofed numbers with the same area code and prefix of my phone.  About half of my incoming call volume are these robocalls.  The prefix is exclusive to Verizon Wireless customers in my area so is there something Verizon can do about it?  Because I a lot of people I know have this same prefix for their Verizon phone I can't categorically block it.  I hate ignoring all unknown numbers from my own exchange because I have missed legitimate calls but at this level (5 fake calls already today) I finally had to shut the ringer off.  If anyone has any other suggestions I am listening.