That'd be pretty hard to do, since your callers are most probably located in India and Pakistan. Invest in a call blocker and DO NOT pick up on call numbers you do not recognize.
Scam. I picked up and it was a loud, obnoxious recording asking if I needed help against the IRS attempting to garnish my wages. Press 1 to speak to one of their representatives. Never opt to be put on the DNC, it only confirms your # and leads to more unwanted and illegal telemarketers. They've called my # several times.