you can set them up in your phone as a contact such as "spam" and depending on your phone go to the spam contact, select menu, and click "send calls directly to VM" or "add to reject list". Don't think the carriers would have a way of blocking since I bet they are making money off these calls one way or another.
Call and leaves no messages:
801-877-5855 Provo, UT
203-659-9143 CT, USA
321-951-7985 Melbourne, FL
513-245-4988 Cincinnati, OH
417-800-2363 MO, USA
321-621-2545 FL, USA
616-613-2079 Zeeland, MI
Sharon, wish it could be done. Unfortunately, this is a discussion and information board and has nothing to do with any callers. Perhaps a Call Blocker would help.