Who called from 3125488690

Will sometimes call several times a day, and never leaves a message.  A week will go by, then the calls start again.

Called Nov 19, no message.

Calls stopped for about a week and just started  up again.  Never leaves a message.  Very annoying. I am on the "do not call" list.  I don't understand how these telemarketers get the phone numbers if the numbers are on the "do not call" list!!!