(
5th
Generation
Ultra
Wide
Band) Cellular service in the high-frequency millimeter wave band. Verizon brands its high-frequency 5G service Ultra Wideband. As of 2020, 5G UWB service is limited, whereas low-band and mid-band 5G already reach millions of customers in the U.S. See
UWB,
wideband,
5G DSS,
5G frequency bands and
5G.