I would assume they are referring to the US for this service, with project loon providing service in remote areas.

I guess we'll have to wait for the announcement of its partner at a later date.

Google will launch a wireless service of its own, but it may be a limited project.

Sundar Pichai, senior vice president of products for Google, confirmed that the world's largest search company was in talks with wireless carriers, and suggested an answer would arrive "in the coming months." He was addressing the speculation that Google would partner with the carriers to offer a hybrid service that would rely on cellular and Wi-Fi networks.

A spokesman later clarified that an announcement would come in the next few months, not that a service would be launching. Google Plans To Launch a Wireless Service [cnet.com]