T-Mobile Store

T-Mobile Grossmont Ctr Dr & Murray Dr

Open now
Tues: 10:00 am - 8:00 pm
4.3/5
T-Mobile Home Internet
T-Mobile Prepaid
T-Mobile For Business
Connect by T-Mobile

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Featured categories at T-Mobile Grossmont Ctr Dr & Murray Dr

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.
89
/100
AT&T
83
/100
Verizon
80
/100
5G coverage availability
More availability means having access to 5G speeds more often.
86 %
88 %
AT&T
60 %
Verizon
5G download speed
Higher speed means quicker downloads and smoother video calling.
181
Mbps
Verizon
50
Mbps
AT&T
49
Mbps
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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 Grossmont Ctr Dr & Murray Dr

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CUSTOMERS 55+

Get 2 Unlimited
lines for $30/mo.

w/ AutoPay discount using eligible payment method, plus taxes and fees.
Find out more
Min. age 55. During congestion, customers on this plan may notice speeds lower than other customers and further reduction if using >50GB/mo., due to data prioritization. Video typically streams in SD quality.
APPLE

Get up to $1,000 off iPhone 18 Pro.

The ultimate pro iPhone. Get up to $1,000 off when you switch and bring your number, or trade in an eligible phone in any condition on an Experience Beyond plan.
Get up to $300 Back
ONLINE EXCLUSIVE

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

Check availability
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.
Get up to 800

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

Get the details
Via virtual prepaid Mastercard. Card typically takes 15 days.

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

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T-Mobile Grossmont Ctr Dr & Murray Dr
5454 Grossmont Center Dr
(619) 466-2501

La Mesa’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 Grossmont Ctr Dr & Murray Dr, 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 (619) 466-2501 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 Grossmont Ctr Dr & Murray Dr

Karen Butler
Oct. 28, 2026, 11:06 p.m.
Jaime A. The bomb full eye contact, listening skill, communication clear and precise. Final out come happy customer. GREAT JOB JAIME! View on Google
Terry Sattler
Oct. 28, 2026, 3:36 a.m.
I had been to two other T mobile and also made a call to customer service and was waiting for a call back from customer service before being referred to this store. My wife and i were greeted promptly when entering this store. Carlos Vasquez was the one to help us. What a blessing that was. About three weeks prior to visiting the La Mesa store my wife and I went into one of the T Mobile stores in El Cajon We were just looking to upgrade my wife's phone. The guy that helped us said we would be better off going on a new plan because the plan offered a free phone that was an upgrade from the phone she has. He sold us a four line plan even though I told him I did not need four lines I only need two lines that in the long run would cost me more then the plan I originally had to start with and did not give me some of the benefits my old plan had. By the time my wife and I went into the La Mesa store I was done all I wanted to do was return my wife's new phone and be done with T Mobile for good. Carlos Vasquez sat down with us and listened to my situation. And was very nice and helpful in finding a solution to my situation. While I was talking to Carlos Vasquez I got my call back from a customer service Representative by the name of Kylie. I asked Carlos if he would talk to Kylie and explain to her my situation. Carlos told here my situation and between Carlos and Kylie I was able to go back to my old phone plan after returning my wife's new phone . That was a relief after getting nowhere with the T Mobile stores I had previously dealt with that day. Thank you for a great experience Carlos Vasquez and Kylie being on the phone with us from customer service. I learned my lesson I will only go into this T Mobile store for now on to conduct anything with T Mobile View on Google
S S
Oct. 19, 2026, 10:33 p.m.
Carlos at your grossmont location is such an asset to T-Mobile, his impeccable service from a-z was outstanding and needs to be recognized. He went above and beyond and resolved all my issues which were immense! Thank you Carlos!!! View on Google
Matthew Smith
Oct. 16, 2026, 10:49 p.m.
This store deserves way more than 5 stars, the representatives were patient, explained everything right away, had transparency with the timing and it was almost right on the money! Whatever management is doing here, do not change it! It’s working. View on Google

Locations near T-Mobile Grossmont Ctr Dr & Murray Dr

T-Mobile Experience Store
T-Mobile Santee Trolley Square
4.5 miles away
3.7
T-Mobile Experience Store
T-Mobile City Heights
5.8 miles away
3.5
T-Mobile Experience Store
T-Mobile Fenton Pkwy & Mission City Pk
7.2 miles away
3.6

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 Grossmont Ctr Dr & Murray Dr 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 Grossmont Ctr Dr & Murray Dr 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