Fast Track Report at 2-2 (radiosondes operate in the 1675-1683 MHz portion of the band). 391 See supra 11. 392 The Commission reallocated the 1990-2025 MHz band from BAS to emerging technologies such as PCS, AWS, and MSS. Sprint, which is the PCS licensee at 1900-1995 MHz, completed the BAS transition for the entire 35 megahertz in 2010.