Who called from 3213607465

I want to know how to make unwanted, unsolicited calls stop

321-360-7465 This vacation company keeps calling and I have repeatedly asked to be taken off their list

/This number keeps calling then hanging up , about once a week for the last two months

Caller from Titusville, FL. FL=timeshare scam. Didn't bother answering. No need to let them know it's an active # or when we're home.

I have a growing list of 321 area code numbers I keep adding to my "spam" contact in my phone. I don't know why we can't just ask our phone carriers to block Florida altogether.