T-Mobile Store

T-Mobile Sullivan Marketplace

Open now
Mon: 10:00 am - 8:00 pm
4.5/5
T-Mobile Home Internet
T-Mobile Prepaid
T-Mobile For Business
Connect by T-Mobile

Top devices in stock at T-Mobile Sullivan Marketplace

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Featured categories at T-Mobile Sullivan Marketplace

T-Mobile Network Performance

Data provided by Umlaut
 From January-2026 to June-2026
5G network score
The higher your score, the more likely you can connect to a faster, more stable network.
95
/100
AT&T
86
/100
Verizon
80
/100
5G coverage availability
More availability means having access to 5G speeds more often.
96 %
92 %
AT&T
68 %
Verizon
5G download speed
Higher speed means quicker downloads and smoother video calling.
503
Mbps
AT&T
163
Mbps
Verizon
32
Mbps
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T-MOBILE TRIAL

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for 30 days.

Test-drive our award-winning network and some of our favorite benefits for 30 days—no commitment or credit card required. We won't even tell your other carrier.

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Qualifying non-T-Mobile network user & compatible, unlocked device required. 1 trial user. See 5G device, coverage, & trial details at T-Mobile.com.

Featured Promotions at T-Mobile Sullivan Marketplace

Get up to 800

Switch to T-Mobile, and we'll help pay off your phone—up to $800.

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Via virtual prepaid Mastercard. Card typically takes 15 days.
Get up to $300 Back
ONLINE EXCLUSIVE

Get up to $200 back when you sign up for T-Mobile 5G Home Internet.

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Via Virtual Prepaid Mastercard ® when you sign up online and activate a qualifying new Home Internet line. Not available in retail. Allow 14 weeks from rebate submission.
SAMSUNG

Experience the Samsung Galaxy S26 Series.

Get Galaxy AI as your personal companion, your phone will function better and more powerfully than before.

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IDs Accepted

  • US State issued drivers license
  • US Passport or Permanent Resident Card (Green Card)
  • State ID
  • International student visa with passport (Visa types: M, J, F)
  • Matricula Consular card (Mexico and most Latin American countries, check with your store mobile expert)
  • Employment Authorization Document (EAD)
  • US Military ID

T-LIFE

Experience the best of T-Mobile. At your fingertips.

Tap into exclusive benefits, shop our best deals 24/7, manage your account and devices, and more.

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T-Mobile Sullivan Marketplace
308 Park Ridge Rd
(314) 788-3972

Sullivan’s 5G leader — with membership perks and coverage that go beyond wireless. T-Mobile powers America’s largest, fastest, and now most advanced 5G network — backed by satellite coverage that keeps you connected even off the grid. At T-Mobile Sullivan Marketplace, explore the latest devices from Apple, Samsung, and Google, with great deals and flexible ways to pay. Whether you’re upgrading, switching, or just looking, our experts are here to help.

Call us at (314) 788-3972 or stop by today.

What You’ll Find In-Store:

  • Activate Wireless or Prepaid Service
  • Activate Home Internet Services
  • Purchase Phones, Tablets, and Accessories in Store
  • Upgrade or Trade-In Your Phone
  • Small Business Plans And Services
  • Connected Products for Home, Family, and Automobile
  • Buy Online, Pick-Up In Store

Featured reviews at T-Mobile Sullivan Marketplace

Chris
Aug. 31, 2026, 3:40 p.m.
I want to thank Zade M for being a knowledgeable, patient and taking the time to answer my questions about my tower that recently stopped working. I was in and out of the store in a half hour. He switched everything over and made it easy for me. I also want to say that he said to me my contract has another month but didn’t try and up sell me on anything. That is really cool because I don’t like used car salesmen. I guarantee at the end of September I will be in the store looking for him or there wonderful manager alexia for an upgrade on my service and phone. Thank you for finally having a wonderful store where all the employees are helpful and knowledgeable. This is one of the biggest reasons I use T-Mobile and will continue. View on Google
Alia Jones
Aug. 22, 2026, 12:11 a.m.
We recently had the opportunity to work with Alexia, the store manager at T-Mobile in Sullivan, MO, and I cannot say enough good things about her! Managing a large business account can come with a lot of questions, moving pieces, and unexpected challenges, but Alexia made such a difference for us. She was incredibly knowledgeable, patient, attentive, and most importantly ….she genuinely cared about helping us get things taken care of. What really stood out was how far she was willing to go for us. She didn’t just point us in the right direction and send us on our way. She took ownership, stayed involved, and went above and beyond to make sure we were taken care of day after day after day! That kind of customer service is hard to find! Alexia is a fantastic representative of T-Mobile and an even better store manager. We truly appreciated her willingness to help and the time she invested in making sure everything was handled properly. If you are in or around Sullivan, Missouri, and need help with your T-Mobile service or business account, I highly recommend Alexia and her team. You will be in great hands! Thank you, Alexia, for going the extra mile for us … it absolutely did not go unnoticed! View on Google

Got Questions about T-Mobile Stores?

Yes. Check out our special offers for new phones and great deals on our mobile phone plans.

We offer the latest iPhones. Check our store inventory and either buy in-store or online today.

Yes. Trade in your phone at a T-Mobile store and receive instant appraisal and credit. See our trade-in guide for details.

Yes, visit our T-Mobile store at T-Mobile Sullivan Marketplace for assistance with setting up your device.

Browse devices and plans online, contact us for assistance, or visit this T-Mobile location at T-Mobile Sullivan Marketplace for personalized help.

Yes. Some plans include subscriptions to services like Netflix or Apple TV+. Check our plans for available perks and add-ons.

Use our Store Locator to find the nearest T-Mobile store.

T-Mobile stores offer a wide range of accessories compatible with your device, including cases, chargers, and headphones.

No, you can pay your bill online through our website or the T-Mobile app.

Only compatible devices can use T-Mobile's 5G network. All new phones are 5G ready.

The T-Life app provides a simplified experience for customers by offering everything in one convenient location. In the T-Life app, T-Mobile and Metro by T-Mobile customers can access the same great perks and exclusive deals you know and love from T-Mobile Tuesdays, VIP benefits, and more! Plus, you can easily manage most aspects of your T-Mobile account directly from the T-Life app, with new features being added regularly.

Yes, the T-Life app can be found in your Google Play Store or Apple iOS App Store