Hams allocated 23,350 MHz

The good news: U.S. Radio Amateurs have frequency allocations (primary and secondary) of 23,350 MHz. (Primary allocations add up to 4,791 MHz.)

The less good news: 23,300 MHz of the total is allocated above 1 GHz, but 22,700 MHz of that is above 10 GHz, and 16,750 MHz is above 100 GHz.  Little day-to-day amateur activity takes place above even 1 GHz, but there is important experimentation in these regions.

Just a few tidbits from www.spectrumwiki.com.

By the way, these allocations would support about 7.8 million simultaneous SSB conversations at any given location.