Featured promotions at T-Mobile at Costco

T-Mobile Network Performance

Data provided by Umlaut From April-2025 to September-2025   See coverage map
5G network score
The higher your score, the more likely you can connect to a faster, more stable network.
87
/100
AT&T
90
/100
Verizon
81
/100
5G coverage availability
More availability means having access to 5G speeds more often.
91 %
91 %
AT&T
75 %
Verizon
5G download speed
Higher speed means quicker downloads and smoother video calling.
115
Mbps
AT&T
69
Mbps
Verizon
25
Mbps
Compare another location
Man looking at a cellphone
T-MOBILE TRIAL

Try T-Mobile FREE
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.

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

Featured reviews at T-Mobile at Costco

Amanda Marquez
March 25, 2026, 1:51 a.m.
I had such a great experience here! The manager and staff were incredibly friendly, professional, and helpful from start to finish. They made everything easy, answered all of my questions, and went above and beyond to make sure I was taken care of. Truly excellent customer service. I really appreciate the team here at the T-Mobile inside of Costco in Forney! View on Google
Iris Pham
March 25, 2026, 1:37 a.m.
Very friendly staff. They’re always ready to help! I had a great experience working with these guys View on Google
Elsie Oliva
March 17, 2026, 3:57 p.m.
I had a great experience with the T-Mobile rep at the Costco kiosk. Luis, did an amazing job from the start by actually taking the time to understand what I needed instead of just trying to sell me something. He asked the right questions and made the whole conversation feel easy and straightforward. Luis explained the plans and promotions clearly and made sure I understood how everything worked, especially the pricing. I really appreciated how patient he was and how he took the time to answer all my questions without making me feel rushed or pressured. Overall, he did an excellent job and made the whole process simple and stress-free. It honestly felt like he cared more about helping me than just making a sale. Thank you Luis, I will be returning to see you! 😁👏🏼 View on Google
THE PANTERA
March 17, 2026, 9 a.m.
BEST COSTCO EVER View on Google

Additional information about T-Mobile at Costco

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-Mobile at Costco - 150 FM 460
The leader in 5G – Now America’s largest 5G network is also America’s fastest and most reliable 5G network. Shop T-Mobile at this location. Please contact this location for full service options.
  • Activate Wireless Service
  • Activate Home Internet Services
  • Upgrade or Trade-In Your Phone
  • Exclusive Member Benefits

Locations near T-Mobile at Costco

T-Mobile Experience Store
T-Mobile Lake June Rd & Ranchway Dr
8.1 miles away
T-Mobile Experience Store
T-Mobile Market East
8.5 miles away
4.3
T-Mobile Experience Store
T-Mobile Broadway & Centerville
10.9 miles away
5.0

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 at Costco 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 at Costco 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