https://www.cnet.com/news/sprint-on-its-5g-plans-you-better-believe-were-working-with-samsung/

Sprint VP of product engineering and development, Ryan Sullivan, spoke at the Qualcomm Snapdragon Summit. He stated, "We're one of Samsung's biggest customers. You better believe we're working with them as well," as reported by PC Mag. Sullivan confirmed the Samsung-Sprint 5G partnership to CNET.

Sprint has plans to roll out 5G to nine cities in the first half of 2019, including Atlanta, Chicago, Dallas, Houston, Kansas City, Los Angeles, New York City, Washington D.C. and Phoenix.