Google is about to enter the world of wireless.

The Wall Street Journal is reporting that Google is set to launch its new mobile network as early as Wednesday. The new service, which was confirmed at Mobile World Congress in March, will see a limited rollout.

Google’s new wireless service will run on Sprint and T-Mobile’s networks, and will only work on the Nexus 6, according to the report. It’s said that the phone will be able to switch between the two networks, depending on which is providing the better signal at the time.

The most interesting thing about the new service is that it’s reportedly sticking to a pay-as-you-go data structure, where users will only have to shell out for the data they used during the month – a much more desired structure than the set data plans that leave some customers with wasted data (though some carriers have begun to allow rollover data).

Apparently, Google’s offering will also allow for Wi-Fi calling.

Like Google Fiber, Google’s Wireless service won’t see a large scale release – the aforementioned hardware limitations prove that. But like Google Fiber, Google Wireless could affect change in the wireless market – simply by existing. The WSJ had no details on pricing.

We’ll follow up if/when Google makes an official announcement.