The HTC One A9 isn't going to work on Verizon Wireless according to HTC now. http://www.droid-life.com/2016/03/04/htc-one-a9-verizon/
I'm most definitely NOT a VZW employee. If a post answered your question, please mark it as the answer.
The 950 isn't a good phone anyway. Tons of issues, as per the Microsoft and Windows Central forums. And support for the 950 by Microsoft will dry up in a heartbeat the moment the Surface Phone is released. The 950 is just a placeholder for the SP.