1. Go into Walmart wearing a ski mask.
2. Buy a Trac Phone for cash. Also pay cash for the lowest time voucher they sell.
3. Don't register.
4. Ask for a phone number that has a Los Angeles area code.
4. Make only one call.
5. Toss it.
6. Go back to step 1 for your next call (or buy as many phones as calls you'll be making).