Band 77
One of the main frequency bands for mid-band 5G networks in the US.
See: 5G
It is a relatively large band that includes C Band, the 3.45 GHz band, and the 3.5 GHz band (CBRS / band 48).
See: C Band
See: CBRS
Each of these smaller bands covered by band 77 have their own layout and rules, but all are unpaired bands.
Band 77 spans 3.3 – 4.2 GHz, although only 3.45 – 3.98 GHz is used in the US.