The info under the More Information menu says a mobile number can be listed.
Also, check your phone's options to see if it offers a "Reject" list...
be aware that the do not call list is not 100 percent, if you have had a business relationship with the caller it does not take affect, if it is a creditor, it does not take affect. Read the terms and restrictions closely to understand them
Hey there edna, sorry to hear about the unwanted phone calls your encountering with us! Now are you getting calls from telemarketers or just random partys? If it is a telemarketer, then you will need to unsubscribe from their calling list.
Apologies, but you can't block telemarketers, however, you can block regular partys that are harassing you with smart limits.