Bidding reaches $18.55 bln in U.S. wireless auction

Bidding reached $18.55 billion on Friday in the U.S. Federal Communications Commission's record-setting auction of government-owned wireless airwaves, but there were no new offers for two large, closely watched slices of spectrum.

The total bidding, which covers five separate blocks of spectrum in the auction, was up from $15.64 billion on Thursday.