BTW, 600mhz isn't "5g" as it's not millimeter RF, or high enough speed to qualify as "faster" than 4G LTE. 600mhz 5G is a fallback band for 5g to provide coverage in the gaps between millimeter wave towers - and it will be easiest to outfit existing on existing towers, but it's not any faster than 4G LTE can be with the same investment in bandwidth or coverage. "Millimeter waves are electromagnetic (radio) waves typically defined to lie within the frequency range of 30–300 GHz. The microwave band is just below the millimeter-wave band and is typically defined to cover the 3–30-GHz range." https://www.sciencedirect.com/topics/engineering/millimeter-wave Testing Real 5G: Part 2! Dec 5, 2019 Marques Brownlee An exclusive first test of T-Mobile's new 600MHz 5G network 5G: Explained https://youtu.be/_CTUs_2hq6Y I've had 125mbit-140mbit 4G LTE many times, so this "5g" ain't nothing to get excited about, and IMHO isn't 5g.