# Google Fi adds mystery second 5G network

> Google Fi is switching back to dual-carrier service in the US, but won't reveal which network it partnered with.
- Title: Google Fi adds mystery second 5G network · Ars Technica
- Summary: Google Fi is switching back to dual-carrier service in the US, but won't reveal which network it partnered with.
- Keywords: google fi, 5g networks, t-mobile, mvno, network switching, pixel phones, Ars Technica
- Source: Ars Technica — https://arstechnica.com/google/2026/11/google-fi-adds-support-for-a-second-5g-network-wont-say-which-one
- Published: 2026-11-10T19:35:59+00:00
- Read time: 1 min
- Topics: google fi, 5g networks, t-mobile, mvno, network switching, pixel phones, technology, science
## Google Fi returns to dual networks
Google Fi is adding support for a second five G network alongside T-Mobile, ending years as a single-carrier service in the US. The company calls this upgrade a super network.
## The mystery partner remains unnamed
Google's announcement says Fi supports two of America's best five G cellular networks but refuses to name the second one. A Google spokesperson declined to identify which carrier it is.

> two of America's best 5G cellular networks
## The second carrier is likely Verizon
The second network must be either AT&T or Verizon. Comparing Fi's coverage map to carrier maps suggests Verizon is the more likely partner, though the match is not definitive.
## Limited device support at launch
Network switching works only on Pixel nine, Pixel ten, and Pixel eleven series phones now. Other devices will get access in twenty twenty-seven. Fi must be configured as an eSIM with all non-Fi SIMs disabled.
## Super network rolls out at no extra cost
Super network support is rolling out now at no additional cost on Unlimited Premium and Flexible plans. Phones will automatically hop between T-Mobile five G and the second network for best connectivity.
## Key takeaway

Google Fi now supports two 5G networks instead of one, letting phones switch between T-Mobile and an unnamed carrier for better coverage.