What are the frequencies of the Citizen Broadband Radio Service tiers?

The Citizens Broadband Radio Service is authorized in the 3550-3700 MHz frequency band. General Authorized Access Users may operate in the 3550-3700 MHz frequency band. Priority Access Users may operate in the 3550-3650 MHz frequency band. Grandfathered Wireless Broadband Licensees may continue to use the 3650-3700 MHz band in accordance with section 90.1338.