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UScellular and
We’re currently focused on integrating networks to give you the best experience possible. In the coming months, early integration with
Once UScellular accounts fully migrate to
Plus, with the recent addition of
As we've been diligently working on the migration to the award-winning T-Monile network, we hope you are enjoying the many improvements already in place. We're excited, because we know your experience will only get better in the months ahead.
As we continue bringing the
Also, as we continue to prepare to bring the
Protecting our customers’ information is a top priority, which is why we ask for customers’ 6-digit Account Personal Identification Number ( Account PIN) to authenticate and access your account with
As we enter the next phase of migration, you may notice a few operational updates designed to deliver simplicity and performance. As systems align, you may see updates to plans, products, or support experiences—communicated clearly and implemented with minimal disruption. As part of this transition, we don’t expect your monthly cost to increase or a reduction in your plan benefits
Starting May 1, some account updates—like adding a line, upgrading a device, or changing your plan—must now be completed under the
If you’ve received a notification regarding potential device incompatibility, please contact us so we may assist in preparing your account for migration to the T Mobile network.
Our teams will guide you through the options available and help you find what works best for your needs. Contact USCelluar business support at 866-872-4249 (US4BIZ). Any new Business Internet service is offered through
Accounts will move in phases, starting in May 2026. We’ll notify you when your account is ready to move and guide you through next steps.
Nothing will change right now. Your
You won’t see any changes to your current plan, pricing or benefits because of this move.
If you choose to combine or make changes to your accounts in the future once your account has moved to
There’s nothing you need to do at this time.
For voice devices, your phone number won’t change as part of this move to
For now, your account information and login will remain the same.
Once your account is moved to
For most customers, there's nothing you need to do right now. If you’ve received a notification of potential device or SIM incompatibility, please contact us via the method provided in the notification. to help prepare your lines to transition to the
Once your UScellular account has moved to
For new lines of service you can work with your Sales teams, explore product and solutions on the
While you don’t need to take action now, you can choose to migrate early. Your UScellular account expert can walk you through the details.
Early migration is similar to changing providers today—but with all the benefits of
Whether you make the move now or wait, we’re excited for you to experience everything
Until migration, your account tools, and invoices remain the same. After migration, you’ll enjoy:
We’ll continue to keep you informed about every step of the way—clearly, simply, and with plenty of time to prepare.
What you can count on now:
Yes, as a new
As part of this transition, we don’t expect your monthly cost to increase or a reduction in your plan benefits
Yes, after migration, late payment fees will follow T‑Mobile’s policies and calculation methods. A late fee of $10 or a variable percentage allowed under state law is applied to an unpaid past due balance not paid by the due date.
Late payment fees are not applicable for government accounts.
Yes. A $10 payment support fee may apply when a representative assists with a one‑time payment or payment arrangement by phone or in a retail store.
T‑Mobile typically sends automatic payment requests two days before the bill due date. This timing may be different from how payments were processed previously with UScellular.
T‑Mobile may automatically attempt to retry certain failed payments when the failure is caused by correctable issues, such as missing information. This is not applicable for lines served through the IoT Platform Control Center
For some businesses, bill due date has already shifted by up to five days starting with your March bill. If that is your case, you have already received a notification.
For accounts that were not impacted in March, when your UScellular account moves to
Your Bill Due Date will show in your first bill.
For customers that reside in Illinois, please be aware that this new date can be up to 12 days earlier than your current Bill Due Date.
If your business received a notification about the Fiserv end-of-life, please update your AutoPay settings.
If AutoPay is currently enabled on your account, those settings may transfer when your account is migrated to T Mobile’s billing system; however, such transfer is not guaranteed. Following completion of the migration, customers are responsible for verifying whether AutoPay has successfully transitioned.
If AutoPay did not transfer, you can view and edit your autopay settings via Account Hub once you have registered. Otherwise, you can contact T Mobile Support Experts at 800 375 1126 for assistance. Support Experts can provide guidance on reestablishing AutoPay, if desired.
Otherwise, no action is needed at this time—your AutoPay will stay the same until migration. After migration, you’ll receive step-by-step instructions to set up your new AutoPay.
No. The way you receive your bill, your current rate plan, and your discounts remain unchanged today.
When your account moves to
Your plan price and benefits will remain the same or better, and there’s nothing you need to do at this time.
Before migration, UScellular’s late payment policies will apply. After your account is migrated,
UScellular billed an Administrative Fee as a separate line item. T‑Mobile
If you have an Administrative Fee waiver before migration, your lines will receive a monthly credit of $1.62 applied toward the T‑Mobile Regulatory Programs and Telco Recovery Fee. The credit is tied to the original line number and plan at the time of migration (credit will stop if any of the original criteria- number or plan- changes.)
New lines added after migration will not receive an Administrative Fee Waiver credit.
Yes, Regulatory Fees may appear differently. For more information please visit Your bill and what's impacting it |
If you have a Regulatory Cost Recovery Fee waiver before migration, your lines will receive a monthly credit toward the T‑Mobile Regulatory Programs and Telco Recovery Fee. The credit is tied to the original line number and plan at the time of migration (credit will stop if any of the original criteria- number or plan- changes)
New lines added after migration will not receive a Cost Recovery Fee waiver credit.
Some accounts may require a billing cycle adjustment before or after migration so T‑Mobile can maintain pricing and benefits equal to or better than what you have today.
If required, the bill cycle change will occur between May 2026 and July 2026
No, your services, pricing, and benefits will remain the same.
If your bill cycle changes, a short‑cycle bill will be created. This bill is a one‑time bill covering fewer days than a typical billing period. It’s created only to align the cycle before migration and does not represent an extra bill.
In many cases, yes. Most UScellular devices are compatible with
If a device or SIM card update is required, we'll notify you by email, mail, or text message and provide instructions. If you don't receive a notification, no action is required.
Once your UScellular account moves to
Starting May 1, some account updates—like adding a line, upgrading a device, or changing your plan—must now be completed under the
If you’ve received a notification regarding potential device incompatibility, please contact us so we may assist in preparing your account for migration to the T Mobile network.
Our teams will guide you through the options available and help you find what works best for your needs. Contact UScelluar business support at 866-872-4249 (US4BIZ).
As UScellular is now part of
Most customers will not need to change their SIM or eSIM.
Some customers may require a new SIM card. If you’ve received a notification regarding potential device incompatibility, please contact us so that we may assist in preparing your account for migration to the T Mobile network.
Our teams will guide you through the options available and help you find what works best for your needs. Contact UScelluar business support at 866-872-4249 (US4BIZ).
Yes. UScellular customers can now activate
Reach out to your Sales Associate for additional information.
No, T‑Mobile does not support vanity phone numbers, so this feature will be discontinued during the transition.
Lines suspended more than 200 days have been cancelled. Cancelled lines can be brought back into an active status but cannot be re-suspended.
Suspended lines that have met or exceeded the maximum temporary suspension timeline (30, 60, 90, 120 days etc.) but have not been suspended for more than 200 days have been resumed.
Beginning March 1, 2026 customers have been able to suspend their line(s) for a maximum of 30 days regardless of the suspension code selected. Also, customers can only suspend for one 30-day period. After May 1,2026 customers will not have the option to suspend services as their account is prepared to be moved to
Once migration occurs,
Other suspensions arrangements and offerings will no longer be available after migration.
To ensure a seamless migration to the
To help ensure your service continues working smoothly, there’s an update you need to complete soon. Your account was identified as having devices or SIMs which will no longer fully support the improved network experience. Taking care of this update now will help ensure everything continues working without interruption to your services.
Any offers or promotions you’re currently receiving will continue as part of your existing UScellular plan.
When your account moves to
If any changes are needed, we’ll notify you ahead of time and clearly explain your options.
There’s nothing you need to do right now.
As notified earlier this year, beginning April 2026, Small Businesses transitioned to
Customer with 500+ employees please refer to the notification sent to your billing address with the following information
Your data remains protected under the UScellular Privacy Policy for now. You’ll be notified of any changes to the applicable Privacy Policy.
As your account moves to
Your personal data will remain protected and handled in accordance with applicable privacy laws and company privacy policies.
Your U.S. Cellular contract was previously assigned to
Yes, refund eligibility and timelines will follow T‑Mobile policies once your account has moved to the T‑Mobile system. For more detail on return policy, visit Return Policy.
In some cases, accounts with pending refunds may be processed before migration to ensure billing accuracy.
Later this year, your account will move to
We’ll work closely with you to ensure the transition is smooth, seamless, and
You can continue to use the same number you’re used to, such as 800-819-9373 to contact a UScellular representative for assistance, or dial 611 from your UScellular device.
Later this year, when your UScellular account moves to
If you wish to reclaim a number, T‑Mobile holds previous phone numbers for 30 days. This may be different from previous UScellular policies.
No, AutoPay discounts typically do not apply when paying with a credit card.
No. You will not be charged any fees as a result of your account moving to
In connection with UScellular’s transition to the T Mobile network, voicemail services may be migrated to T Mobile’s voicemail platform. This migration is not guaranteed. Customers are advised to regularly save any voicemail messages containing important information.
Before SIM conversion: dial your own number, *86, or long press 1.
After SIM conversion:
You receive a new T‑Mobile voicemail box when your SIM is activated. You’ll set a new PIN and greeting the first time you call voicemail.
You’ll see a “Set Up” button in the Voicemail tab once you switch SIMs. Tap it to set PIN/greeting—unless you already set them by calling in. Previously saved voicemails on your device stay on your phone.
Yes. Before migration is complete, you can still reach your UScellular voicemail by:
Migration happens overnight. Your UScellular voicemails and greetings will be moved into your new T‑Mobile voicemail automatically.
If you set up T‑Mobile voicemail before migration: your T‑Mobile greeting stays active; your UScellular greeting is stored as inactive.
If you did not set up voicemail before migration: your UScellular greeting becomes your active greeting, and you can choose to keep it or record a new one.
Use long press 1 as usual. All your old and new voicemails will be in one T‑Mobile inbox.
Key reminders:
Voicemail retention during the migration process may vary by customer and is not guaranteed. UScellular and T Mobile do not guarantee that existing voicemail messages will be retained or transferred as part of the account migration.
For customers whose voicemail messages were successfully retained during the overnight migration process, previously received UScellular voicemail messages may be available following migration, alongside any new T Mobile voicemail messages.
For iPhone users, voicemail messages that were previously downloaded and stored locally on the device will remain stored on the device; however, retention of voicemail messages through the migration process cannot be guaranteed.
