AT&T Store Diamond Bar Diamond Bar
Day of the Week | Hours |
---|---|
Monday | 11:00 AM - 7:00 PM |
Tuesday | 11:00 AM - 7:00 PM |
Wednesday | 11:00 AM - 7:00 PM |
Thursday | 11:00 AM - 7:00 PM |
Friday | 11:00 AM - 7:00 PM |
Saturday | 11:00 AM - 7:00 PM |
Sunday | 11:00 AM - 6:00 PM |
Everyone gets our best deals! Come visit the Diamond Bar store and take a look at the current iPhone deals.
Special Offers and deals in Diamond Bar

Android Phone
Samsung Galaxy S22Learn how new and existing customers get the Galaxy S22 for FREE with eligible trade-in.

Android Phone
Google Pixel 6aLearn how to get the new Google Pixel 6a for $2/mo. with no trade-in required. See offer details.

Back To School Deals
Save 20% with code: B2S20Enter the code at checkout to save on select cases, screens, and AT&T chargers for the whole family.

Android Phone
Samsung Galaxy S22Learn how new and existing customers get the Galaxy S22 for FREE with eligible trade-in.

Android Phone
Google Pixel 6aLearn how to get the new Google Pixel 6a for $2/mo. with no trade-in required. See offer details.

Back To School Deals
Save 20% with code: B2S20Enter the code at checkout to save on select cases, screens, and AT&T chargers for the whole family.
About the Diamond Bar Store
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
Our Location
- 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
What our customers are saying
- February 28, 2020
1
I have been AT&T Diamond Bar Store customer for 9 years. In December of 2019, I upgrade my service to $30 per line. However AT&T charged me $40 per line in two bill cycles. On 2/27/2020, I visited AT&T Diamond Bar store to question about the extra Charges. When I was waiting in the store , I noticed the front desk staff was explaining to the other customers in English with patient , polite and respectful manner . When he helped me with my matters, and he explained the reason of my bill overcharged , I was not Signing up for paperless statement, so that AT$T charge me over $10 for each line. He spoke To me in Mandarin. But he was in inpatient, rude, and reproached manners to communicate with me. I asked what was his name, he could not provide to me. When I requested to speak with his manager, he said he was the store manager. I felt the manager discriminated Chinese speakers even though he was native Chinese speaker.Response from AT&TMarch 2, 2020Hello Qingxiu. Our number one goal is to provide you with an exceptional customer experience. We apologize that this was not the experience you had. Please visit us online at issues.mywirelessgroup.com or send us an email at support@mywirelessgroup.com so we can help further assist you. Your experience in our store matters to us, and we'll work to make sure the next experience is better. - February 26, 2019
5
The data plan on my phone was blocked. The techician in charge at the store spend a good amount of time helping me to unblock the phone. I tried another store previously, but the employee was not so helpful. Also, I asked him about a buffering issue that frequently occurred when I watch live streaming on DirecTV Now. He said he will bring this issue up with the DirecTV Now rep next when he see them - August 20, 2018
4
Everything was fine in the store, was shown the correct phone and all. However was told I was told my phone would arrive to me within 2 - 3 business days. It took 7 days to arrive to me. I needed it asap. - July 1, 2018
5
The sales persons at this shop are really professional. They know how to help their customers. - June 18, 2018
5
Very good customer service. Sales representative was very courteous and polite.
Cellphones, plans & accessories
AT&T PREPAID
POPULAR SMARTPHONES
ACCESSORIES
AT&T has the accessories you need to style & protect your devices. Rugged phone cases & sleek phone covers and chargers to keep you powered up. We have adult and kids headphones and headsets as well as the new Apple AirPods Pro to keep you connected to your favorite audio, and more. Get free shipping, free returns, and in-store pickup – just order online by 4pm and it’ll be ready within two hours.
Frequently asked questions
More locations in the Diamond Bar area
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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.
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