AT&T Store Diamond Bar Diamond Bar

In-store shopping
Curbside pickup
In-store pickup
View:
Day of the WeekHours
Monday10:00 AM - 8:00 PM
Tuesday10:00 AM - 8:00 PM
Wednesday10:00 AM - 8:00 PM
Thursday10:00 AM - 8:00 PM
Friday10:00 AM - 8:00 PM
Saturday10:00 AM - 8:00 PM
Sunday11:00 AM - 5:00 PM
2775 S Diamond Bar Blvd
Diamond Bar, CA 91765
US
In H Mart Diamond Bar Shopping Center
  • SMARTPHONE
    Samsung Galaxy S22 Ultra

    SMARTPHONE

    Learn how new and existing customers get $800 off with qualified trade-in or trade-in a Galaxy phone. Any year. Any condition.​ See offer details.
  • Smartphone
    Samsung Galaxy A53 5G

    Smartphone

    Get the new Samsung Galaxy A53 5G featuring 6.5-inch display, triple rear cameras and powerful battery. Shop AT&T for the best Galaxy A53 deal.
  • New iPhone
    Apple iPhone SE 3rd gen (2022)

    SMARTPHONE

    Featuring lightning-fast A15 Bionic chip, 5G support, big-time battery life and a superstar camera. Plus, the toughest glass in a smartphone and a Home button with secure Touch ID.
  • SMARTPHONE
    Google Pixel 6

    SMARTPHONE

    Learn how to get Google Pixel 6 for $10/mo. with no trade-in needed. See offer details.
    10.00
    /mo.
    Ltd. time. Req’s 0% APR 36-mo. agmt. Well-qual. customers. $10/mo. after credits over 36 mos. Other elig. svc plans avail. If svc cancelled, device balance due. Other terms may apply.
  • AT&T PREPAID
    AT&T Prepaid Double Data

    AT&T PREPAID

    Now you can get 16GB of high-speed data every month when you prepay $300 for 12 months of service (equal to $25/mo.)
    25.00
    /mo.
    Taxes and fees extra. Excludes upgrades. Other fees, charges & restr’s apply. See offer details
  • AT&T PREPAID
    AT&T PREPAID SIM

    AT&T PREPAID

    Learn how you can get an AT&T PREPAID SIM card for FREE for a limited time. See offer details.

About the Diamond Bar Store

Authorized Retailer

Our Services

  • iPhone 13, iPhone 13 Pro Max & iPhone Mini
  • Cell Phones
  • Wireless Plans and Setup
  • Phone Activations
  • Trade-In
  • Device Upgrade
  • Device Protection
  • Tablets
  • Wearables
  • TV & Entertainment
  • Internet
  • Bill Pay and Setup
  • Small Business Solutions
  • iPhone 12 & iPhone 12 Pro Max

Our Location

Looking for the hottest new device or an awesome accessory? Our Diamond Bar Store location has got you covered. We’re your one-stop shop in Diamond Bar, CA. We have phones, tablets, wearables, and more that you’ll love. We also offer in-store activation, so you can get your device up and running in no time. Need a case? How about a charger? Some new headphones? We have all that—and more. And while you’re in the store, make sure to check out our DIRECTV® and AT&T TV packages. They deliver the shows and movies people love talking about. So, now that you know us a little better, stop by our Diamond Bar, CA store located at 2775 S Diamond Bar Blvd! We’d love to get to know you.
  • iPhone 13, iPhone 13 Pro Max & iPhone Mini
  • Cell Phones
  • Wireless Plans and Setup
  • Phone Activations
  • Trade-In
  • Device Upgrade
  • Device Protection
  • Tablets
  • Wearables
  • TV & Entertainment
  • Internet
  • Bill Pay and Setup
  • Small Business Solutions
  • iPhone 12 & iPhone 12 Pro Max
Looking for the hottest new device or an awesome accessory? Our Diamond Bar Store location has got you covered. We’re your one-stop shop in Diamond Bar, CA. We have phones, tablets, wearables, and more that you’ll love. We also offer in-store activation, so you can get your device up and running in no time. Need a case? How about a charger? Some new headphones? We have all that—and more. And while you’re in the store, make sure to check out our DIRECTV® and AT&T TV packages. They deliver the shows and movies people love talking about. So, now that you know us a little better, stop by our Diamond Bar, CA store located at 2775 S Diamond Bar Blvd! We’d love to get to know you.

What our customers are saying

    Frequently asked questions

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    Fast. Easy. All Online.

    • Get your order as soon as today

      Choose curbside pickup or AT&T Right To You at checkout for faster delivery, or select standard shipping.

      Standard shipping may encounter delays due to COVID-19 restrictions. Same day delivery subject to availability. Select areas only. See att.com/righttoyou for details.

    • Check your eligibility

      See if you're eligible for $0 down financing - without hurting your credit score.

      Req's 0% APR 30-mo. agmt. Well-qualified customers.

      Start shopping
    • Do it all, right from your phone

      Use the myAT&T app to shop the latest devices, track your orders, pay your bills, view usage, and more.

      Download now

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