5G commercialization for 42 operators
According to public information up to August 2019, 42 operators around the world have implemented 5G commercialization, and most of them have adopted the 3.5GHz frequency band (n71).
It doesn’t include operators in China, which will introduce 5G commercial service in early September.
Note that only Antel, AT&T, Verizon, and US T-Mobile are using mmWave.