https://www.cnet.com/news/t-mobile-calls-verizons-5g-broadband-plan-unrealistic/

On Monday, T-Mobile CEO John Legere used Twitter to call out Verizon for its plan to speed up wireless broadband service, using a next-generation cellular technology called 5G. Specifically, he criticized the rival for missing a self-imposed deadline of deploying commercial service by 2017 (which CNET first reported).  

Verizon said last week that the planned rollout of its 5G broadband service would instead happen in the second half of next year, starting with Sacramento, California, and expanding to four other, unnamed cities.