I know messages from iphone to iphone do not show up on phone bill, but if the number is blocked will it then show up on the bill?

I know messages from iphone to iphone do not show up on phone bill, but if the number is blocked will it then show up on the bill?

If you're sending messages to a blocked number, yes. If messages are coming in to your phone from a blocked number, no they won't show up on your bill.

After testing this with a friend, it appears while operating on iOS 10, iMessages will initially go as blue with no "delivered" note underneath. After several minutes the iMessage goes green and says "sent as text message". Following up with my Verizon bill and looking at my message log, my attempts to reach this friend while she had me blocked do not appear on my bill. Conclusion: blue iMessages that go to green without that exchange appearing on your bill indicates you've been blocked.