Verizon, AT&T, T-Mobile get OK to bid in FCC spectrum auction
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   The Federal Communications Commission has released a list of 82 applicants qualified to bid in its next key auction of wireless airwaves.    And while a number of smaller, regional firms are listed, nationwide providers Verizon (NYSE:VZ), AT&T (NYSE:T) and T-Mobile (NASDAQ:TMUS) are qualified to take part.    Auction 108 will offer flexible-use licenses in the 2.5 GHz frequency band for next-generation wireless services.    That covers about 8,000 licenses mostly in rural areas. It's scheduled to begin July 29.