Can i still activate the verizon iphone even tho metro and Tmobile has merged?

Ever since metro and tmobile had merged i been hearing that iphones from at&t and other gsm carriers can be used with metro but i know that they used verizon iphones from metro before, but that was before metro and tmobile merged so is it still possible that verizon/sprint iphones can still be used in metro?

Yes g-r-e-e-n-2-8.Co-m