That's like every major city in some capacity or another, so it could potentially be available for 10's of millions.
However, in terms of actual user base, I suspect that the number is much lower since only a few Android phones support it.
New iPhone w/ 5G expected this Sep/Oct?
Ads in Canada claiming under 1 ms latency for gaming on 5G... Is that BS? It would seem its faster than even a fiber wired connection?