What carriers use mmWave?

WCDMA was the 3G technology used in the US by AT&T and T-Mobile . There are several newer upgrades to WCDMA that offer much faster data speeds, such as HSDPA and HSPA+. These do not replace WCDMA, but rather build on and enhance WCDMA. Therefore any phone with HSDPA or HSPA+ also includes WCDMA by definition.

On November 6, 2020, China successfully launched an experimental test satellite with candidates for 6G technology into orbit, along with 12 other satellites, using a Long March 6 launch vehicle rocket.

The three U.S. carriers use different names for the 5G services that utilize mmWave technology: AT&T’s mmWave 5G is named 5G Plus (5G+), Verizon launched 5G Ultra Wideband (5G UWB) using mmWave, while T-Mobile uses Ultra Capacity 5G as the name for the combined service using both its mid-band and mmWave networks, but …