FCC Broadband PCS Band Plan Note: Some of the original C Block licenses (Originally 30 MHz each) were split into multiplelicenses (C1 and C2, 15 MHz; C3, C4, and C5 10 MHz). 1850 1870 1890 1910 1930 1950 1970 1990 1860 1880 1900 1920 1940 1960 1980 Unlicensed 20 MHz C2 C1 C2 C1 C3 C4 C5 C3C4 C5 Channel Block Bandwidth (MHz