I am having the same issues. I thought it was just my phone.
Seems to be a sporadic problem with the service as I know others on Verizon that have service.
Several tweets have gone unanswered. Would be nice if Verizon would acknowledge this issue and let us know what is going on and when we can expect service again. I am 7mo preg with other kids in school, and have NO means of getting calls in or out if I am needed in an emergency.