Alphabet’s tech titan Google said on Friday it will not participate in the FCC’s upcoming spectrum auction.

According to a Reuters report, a Google spokeswoman said the company will be watching the auction “closely,” but has not filed to participate. The deadline for applications to participate in this year’s forward auction was Wednesday.

Reuters said Google had thrown its hat in the ring for the FCC’s 2008 spectrum auction, but did not purchase any airwaves.

The news makes Google the latest among companies expected to participate that have instead announced they will be sitting out the proceedings.

The first to make such an announcement was tier-1 wireless carrier Sprint, which said in September its already “rich spectrum holdings” were sufficient. Fellow U.S. carrier U.S. Cellular has also hinted it doesn’t need to buy spectrum, but has not outright declared it won’t participate.

Last week, cable operator Charter Communications also said it is “unlikely” to participate in the auction, mainly due to the awkward timing of its pending merger with Time Warner Cable.

Despite these notable dropouts, however, a number of wireless carriers, cable operators and other companies have announced their intent to take part.

Last week, Comcast CFO Michael Cavanagh said his company is planning to file for participation in the auction, but hinted the company may not be a big bidder.

Dish is also widely expected to participate to the tune of $4.7 billion, according to Bloomberg analysts.

Major wireless carriers T-Mobile, AT&T and Verizon have also signaled their intent to participate in the auction, albeit to varying degrees. 

Former Facebook executive Chamath Palihapitiya has also said he plans to go head to head with industry giants in the auction. Palihapitiya said he plans to spend between $4 billion and $10 billion in the auction, and will use any spectrum gained in the auction to develop a wireless network that can compete with Verizon and AT&T.

Despite these commitments, concerns have arisen that the auction revenues might not meet the FCC’s expectations. According to Bloomberg, auction totals could simmer at just $33 billion, well below the $45 billion hoped for by the FCC.

The spectrum auction is set to begin at the end of March.