5G+
5G+ is AT&T's marketing label for their mmWave 5G. It's only available in dense urban cores, stadiums, and airports — when you see it, you're on the fastest tier.
5G+ is AT&T's marketing label for their fastest 5G tier — specifically mmWave (n258, n260, n261), which delivers gigabit-class speeds over very short ranges (a city block or two). The plain "5G" icon on an AT&T phone usually means low-band or sometimes C-band; only "5G+" guarantees you're on mmWave.
Where you'll see it
5G+ is rare. AT&T has deployed mmWave in dense pockets of major metros — typically downtown cores, major sports venues (AT&T Stadium has it, naturally), and the busiest airport terminals. You won't see it in suburbs or anywhere outside very high-density geography. AT&T also uses C-band (3.7 GHz mid-band) for their broader fast-5G layer, but doesn't apply a separate marketing label to it the way Verizon does with 5G UW.
Performance vs. AT&T's plain 5G
5G+: 1–3 Gbps download in line-of-sight, dropping rapidly with distance and obstructions. Plain 5G: usually 100–300 Mbps if it's on C-band; 50–120 Mbps if it's low-band. The icon difference matters because the speed difference is real — when you're on plain AT&T 5G, the experience is closer to good LTE than to the gigabit-5G marketing promise.
Carrier-by-carrier label cheat sheet
- Verizon: 5G UW (= mmWave + C-band) vs plain 5G (= low-band).
- T-Mobile: 5G UC (= n41 mid-band + mmWave) vs plain 5G (= low-band n71).
- AT&T: 5G+ (= mmWave only) vs plain 5G (= low-band or C-band, ambiguously).
This means AT&T's plain "5G" indicator is the most ambiguous of the three majors — it could mean fast C-band or it could mean slow low-band, and the icon doesn't tell you which.