Frequency ranges allotted to cellular telephony that will be utilized by public enterprises, such as the 27 companies within the Telebrás System. For cellular RBS, A band comprehends:

869 MHz to 870 MHz (A”);
870 MHz to 880 MHz (A”); and
890 MHz to 891.5 MHz (A”).

For cellular RBS, A band is thus:

824 MHz to 825 MHz (A”);
825 MHz to 835 MHz (A”); and
845 MHz to 846.5 MHz (A”).