US Cellular to T-Mobile was not one switch on one day. T-Mobile closed its purchase of US Cellular’s wireless business on August 1, 2025, and said then that “The UScellular brand will transition in phases to T-Mobile.” This page collects what T-Mobile tells former US Cellular customers about everyday things: signing in, paying, phones, stores and coverage.
First, which group are you in?
T-Mobile’s pages describe three.
| Your account | What T-Mobile says | Where to read more |
|---|---|---|
| Monthly plan, moved to T-Mobile | Your lines “were moved to a new T-Mobile account” | This page |
| Monthly plan, and you got a letter | “Your account will not move automatically.” | Our US Cellular page |
| Prepaid | Service “is suspended, and you can no longer replenish your account” | Our US Cellular prepaid page |
The rest of this page is for the first group. The quotes are from T-Mobile’s next steps page for US Cellular customers.
How do I sign in?
Your US Cellular login no longer works. T-Mobile says, “Your UScellular login information does not carry over.”
You sign in with a T-Mobile ID, which “will be either your mobile number or email address previously associated with your UScellular account.” T-Mobile’s app for managing the account is called T-Life.
How do I pay my bill?
In the T-Life app or by signing in at T-Mobile.com. If you had AutoPay with US Cellular, T-Mobile says it “is still active on your T-Mobile account, no action is required.”
Payments by mail go to T-Mobile, P.O. Box 742596, Cincinnati, OH 45274-2596. A printed detailed bill costs $2 a month.
If you were already a T-Mobile customer too, the accounts stay separate: “your UScellular lines were moved to a new T-Mobile account.”
Does my US Cellular phone still work?
Almost certainly. T-Mobile’s announcement said “nearly all of UScellular customer devices will continue to work on the T-Mobile network.”
Some customers were told their phone or SIM might not be compatible. T-Mobile’s page for business accounts gives them “30 days after your migration has been completed to do the swap.”
Did my plan or price change?
T-Mobile said not at first: “No immediate plan changes. Customers can opt into T-Mobile plans for added value.” What the last US Cellular plans cost is on our US Cellular family plans page, and how the monthly fees compare is on our US Cellular fees page.
One feature was swapped. US Cellular’s Call Guardian “was replaced with T-Mobile Scam Shield.”
Are US Cellular stores still open?
At the time of the sale T-Mobile said, “UScellular stores remain open and operating, and customers can continue visiting their local store.” Its prepaid page, which carries 2026 details, still says customers “can still contact and change plans at UScellular stores.”
Roaming and coverage
US Cellular was a regional network that relied on other carriers outside its own area. Its coverage maps warned that a customer “may incur roaming charges at borders of calling areas.”
T-Mobile’s pitch was that this would end. US Cellular customers “will move beyond limited roaming to a broader, more powerful experience — starting with reciprocal roaming and evolving into an integrated network experience in the coming months.”
By 2026 T-Mobile’s page for business accounts put it in the past tense: “The networks have been integrated, bringing broader coverage, more reliable calling, and faster data speeds.”
US Cellular’s “5G+” was its name for mid-band 5G, which it described as “10 times faster than 4G”. It said all its plans included 5G at no extra charge.
What happened to US Cellular the company?
It kept its towers and changed its name. T-Mobile’s announcement says “Array Digital Infrastructure Inc. (formerly UScellular) will retain ownership of a significant portion of the company’s spectrum and towers”. Array’s own site says it has “more than 4,400 towers”.
If you would rather leave
You can. Your number can go to any carrier that will take it. Brands on each network are on our MVNO list, and the steps are in our guide to porting your number.