Assuming you are on a family plan, and you are the accountholder:
For the current billing cycle, sign in to My Verizon, and on the homepage is a link called "Current Usage" - there is a drop down for the numbers on your plan (if it is a family share). Once you click "Current Usage", there are tabs for Voice, Messaging, and Data, and within each of those is a "Details" link. the text messaging seems to be a day or two delayed in the details, but you can see the numbers texted to and from. There is no way to see the content of the text messages, just the numbers that were involved.If you are going back any further than the current billing cycle, you will have to pull up the prior bill, and view the call details and messaging details for each of the numbers on your account.HTH,