James I.
9/1/2025
My family and I, recently switched to T-Mobile. We were tired of our old phone provider and were looking for a more affordable phone and internet option. So we went to our local T-Mobile store and...
T-Mobile
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21710 Valley Blvd
Walnut, CA 91789
Visit T-Mobile Walnut at 21710 Valley Blvd, CA for the latest in 5G technology. Get exclusive iPhone deals, and discover our wide selection from Samsung and Google. With America's leading network, you'll enjoy the fastest and most reliable 5G coverage. Our store is filled with Mobile Experts dedicated to superior sales assistance and service. Elevate your communication with the best devices and accessories. Call us today at (909) 444-6803.
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Reviews
3.068 reviews
Benson L.
7/24/2025
Fan fan fan. Great service nice signals all five g. The fastest five g around. Speed of Asia. Fast great nice
Athena M.
3/4/2025
No Star! Take your business somewhere else, not only that T-Mobile's network is unreliable, the Customer Service (aka mobile expert), promotion, etc is extremely poor. Super bad! Don't get fooled...
Nicholas M.
3/11/2025
Most T Mobile workers are not good, but this location takes the top spot for worst customer service. As I'm taking a look at the new iPhone 16 Pro Max I overhear the young man helping an older...
David
3/25/2025
Grand and Valley Store. Bad services, came in and Ray was serving, then need to update account, need me to call 611 to update, otherwise cannot process. stay outside store and called, after...
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