"We have already made Vodafone 4G services available to more than 1 million New Zealanders using our existing 1800MHz spectrum holdings. However, it is not economically efficient to use 1800MHz spectrum to deliver 4G services in large, sparsely populated rural areas, " the company said in its application.
"The700MHz spectrum band will enable Vodafone to deliver 4G services in rural areas."
Last week, Telecom registered as a bidder for the government auction, saying it would use 700MHz spectrum "as the backbone" of its new 4G network.
The auction is scheduled to start on October 29 and comprises nine blocks of "5 MHz paired spectrum" in the 700 MHz band.
There are limits on the amount of spectrum each bidder can acquire.
At the start of the auction, each bidder will be limited to buying up to three blocks but this might be relaxed to four blocks as the auction proceeds, the Commerce Commission said.