English | Español

Ready to shop now? Start with the T-Life App

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.
92
/100
AT&T
92
/100
Verizon
88
/100
5G coverage availability
More availability means having access to 5G speeds more often.
91 %
93 %
AT&T
75 %
Verizon
5G download speed
Higher speed means quicker downloads and smoother video calling.
100
Mbps
AT&T
80
Mbps
Verizon
54
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

AJ
Dec. 1, 2025, 4:32 a.m.
I keep coming back to this T-Mobile location cuz I always have an exemplary experience. Two years ago, Kenny helped us switch from ATT despite extreme complications with our accounts. This time, Anthony upgraded us - taking time to explain our benefits and hooking us up with a new protection plan. Kenny was also there and despite all the chaos of the Black Friday weekend, he managed his team well and the experience was smooth and painless. If T-Mobile continues to have superior deals and customer service like this, they can have my business for life. View on Google
J. B.
Nov. 30, 2025, 9:15 p.m.
Kenny & Anthony were amazing. They provided us with excellent customer service, answered all our questions & ensured an efficient, thorough experience. Anthony also helped us find a valuable protection plan for my spouse who really needs the coverage. Thank you for hiring such fantastic staff here. View on Google
Sobha Mulukutla
Nov. 24, 2025, 1:22 a.m.
I had a great experience working with Annia and Luis. Annia made the whole experience of switching the device to t-mobile really smoother. There were challenges to port the number but she handled everything with a smile on her face. She has a wonderful personality and I would definitely recommend her. Thank you Annia, appreciate all the effort to make a better customer experience. 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 - 1701 Dallas Pkwy
T-Mobile at Costco - 1701 Dallas Pkwy
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 Preston Rd & W Park Blvd
2.1 miles away
5.0
T-Mobile Experience Store
T-Mobile The Shops at Legacy
3.7 miles away
4.5
T-Mobile Experience Store
T-Mobile Campbell Rd & Coit Rd
4.7 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