Featured promotions at T-Mobile at Costco

T-Mobile Network Performance

Data provided by Umlaut From July-2025 to December-2025   See coverage map
5G network score
The higher your score, the more likely you can connect to a faster, more stable network.
91
/100
AT&T
91
/100
Verizon
74
/100
5G coverage availability
More availability means having access to 5G speeds more often.
92 %
89 %
AT&T
58 %
Verizon
5G download speed
Higher speed means quicker downloads and smoother video calling.
261
Mbps
AT&T
78
Mbps
Verizon
52
Mbps
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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

Louis Miner
June 19, 2026, 5:05 p.m.
I had a great experience working with Michael Sanchez here. He took the time to explain everything to me and gave me confidence in what my bill will actually be. Even after our first initial experience, if I had questions, he would still answer them for me and direct me in the right places, even working on his days off. Very dedicated to ensure his customer satisfaction! Best experience I’ve had with working with a cell phone provider. I have sent many friends and colleagues over to him as well and they’ve all had the same Great experience View on Google
van lasiter
June 19, 2026, 4:58 p.m.
If you are thinking of changing over to T-Mobile, I highly recommend that you go Costco in Webster and ask for Michael Sanchez.. he answer every question and explains everything crystal clear. He went beyond what is expected of his job description.. by taking his time with me. Best customer service I have received in a very long time. View on Google
Guardian Logistics
June 19, 2026, 2:59 p.m.
Switched from AT&T to T-Mobile through Michael at the Costco Webster location. Got over $600 toward my phone payoff, a $400 gift card, and my monthly bill dropped $30. Hard to argue with that. Michael handled everything — got me on the right plan, submitted the payoff reimbursement, answered my questions. No runaround, no follow-up needed on my end. I was already a T-Mobile Home Internet customer, so the move made sense. He made it painless. If you’re thinking about switching, ask for Michael. View on Google
Raquel Rodriguez
June 19, 2026, 2:39 p.m.
I was referred to Michael Sanchez by a close friend and I must say I am glad I was. Michael provides exceptional service from explaining the smallest details to making sure all devices are working properly and staying in contact for any further service needs. I recently moved my service to T-Mobile and a week later returned for Michael’s help to set up WiFi service, that I might add he took care of in less than 20 mins!! All in all great service! View on Google
Mike Thomas
June 19, 2026, 2:06 p.m.
Michael Sanchez was truly amazing. He stayed in constant contact with us every step of the way changing from Verizon to T-Mobile. Each time I have a question or need something, he is super responsive and helpful. Great asset to the T-Mobile brand. 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 - 1310 Jasmine Ave
T-Mobile at Costco - 1310 Jasmine Ave
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 Baybrook Village
0.5 miles away
T-Mobile Experience Store
T-Mobile Gulfgate
14.7 miles away
4.1
T-Mobile Store
T-Mobile Baybrook Mall
0.8 miles away
4.4

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