AT&T is seeking to borrow $14 billion dollars to help finance the cost of acquiring 5G airwaves in a competitive auction that has drawn heavy bidding from wireless carriers.

The phone company is in talks with Bank of America to provide a one-year term loan that will likely be refinanced in the bond market and paid off over several years.

AT&T’s loan follows news that T-Mobile USA borrowed $3 billion from investors for its own 5G spectrum acquisitions.

The FCC expects to collect more than $80.8 billion from the auction of 280 megahertz of spectrum around 3.7-3.98 GHz—a portion of the satellite C-band. This is the FCC’s largest mid-band 5G spectrum auction to date. Analysts were expecting bids of around $47 billion, but wireless carriers seem motivated to grab as much 5G spectrum as possible.

AT&T’s loan will add to the company’s existing $159 billion in debts, making it the world’s largest non-financial corporate borrower. Much of AT&T’s debt came from its 2018 $85 billion acquisition of Time Warner, Inc.