Demoso, I'm sorry your receiving unwanted calls. I know this can be frustrating and can disturb your daily life. I wasn't able to locate an issue with customers receiving calls from the number 0. When are the calls received? Do you notice the calls on your bills and are they being charged towards your minutes? It may be a fax number autodialing your mobile number. You can block calls and text that come from ten-digit number. You can also put your name on the Do-Not-Solicit_List.
Steps below to block phone numbers:
Link to steps to add name to Do-Not-Solicit-List
Please keep us posted on the calls your receiving and if any of the options above helped.
Follow us on Twitter at www.Twitter.com/vzwsupport