I order T-Mobile iphone x from apple.com and i am on Verizon Wireless. I was asking from ppl here in this forum whether T-Mo X will work on VZW but most said no because VZW has CDMA tech while T-Mo phones are GSM. I contacted so many eBay sellers to sell the Verizon X and almost come into agreement but fortunately decided to give a try before buying Verizon X. When i inserted VZW sim in T-MO X it worked perfectly, strong signals, crisp talk sound, full & strong LTE signals. I am sure ppl who replied they also didn’t know this either. Maybe this is first year T-MO phone made their iphone different. So ppl you can use T-MO X on VZW network flawlessly.