T-Mobile at Costco Fullerton CA

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900 S Harbor Blvd
Fullerton, CA 92832
+1 (714) 224-8002
https://www.t-mobile.com

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Reviews

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2.02 reviews
Photo of Michael V.
Michael V.
7/20/2025

Went to the Fullerton Costco because they had a T-Mobile sub store to get my girlfriend a new i phone. The staff was helpful, unfortunately they don't have any phones in stock on site. Since...

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Lidia G.
11/22/2025

Terible servio mas hacen esperar una hora oh mas no entiendo tanto dineron que ganan y no para tener mas rapido servicio

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"Joanna was so sweet and helpful. We were previously told it would cost a lot of money to upgrade our phones. After sitting with Joanna and going over our options, it was less the half the amount..."
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United States›California›Fullerton›T-Mobile at Costco Fullerton CA

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