Who called from 4344223408

Called at dinner time tries to sell a warranty on a car I traded in 3 years ago.  An obvious scam.

Called around 2:38. Rang about three times. did not answer

I keep receiving calls from these two numbers  one is unknown 434-253-4207 the other one is Virginia 434-422-3408 I do not answer them, how do I get the to stop

Called at 2:04p, no message, local area code. Probably scam.

Got a call -left no message 434-422-3408.  This is at least the second time this week. We are on the Do Not Call list--doesn't seem to work anymore.