US intelligence officials determined the Chinese spy balloon used a US internet provider to communicate

"Intelligence officials have revealed a Chinese spy balloon that flew across the US for a week

in February used an American internet service provider to communicate.
The balloon had drifted east and entered US airspace over Alaska on 28 January and was tracked as it flew over Malmstrom Air Force base in Montana, where nuclear assets are stored. The report stated that the balloon was connected to a US-based company and communicating with China about its navigation.
It further stated that the connection 'allowed the balloon to send burst transmissions or high-bandwidth collections of data over short periods of time' to its home base in China.
The channel has not released the name of the company." MS