For the best possible browsing experience

we recommend upgrading to one of these modern browsers.

Edge
Edge
Chrome
Chrome
Firefox
Firefox
Safari
Safari

To speak to a sales representative, please call
855-515-6900

Store Head

AT&T at Costco in Sioux Falls, South Dakota

Visit us in Sioux Falls, South Dakota

Costco

Rating: out of 5 stars
3700 S Grange Ave
Sioux Falls, South Dakota 57105
Monday:
 9:30 AM -8:30 PM
Tueday:
 9:30 AM -8:30 PM
Wednesday:
 9:30 AM -8:30 PM
Thursday:
 9:30 AM -8:30 PM
Friday:
 9:30 AM -8:30 PM
Saturday:
 9:30 AM -8:30 PM
Sunday:
 9:30 AM -8:30 PM

*Hours may vary by store

Store Head

Schedule a call to talk with an AT&T Sales Representative

Scan this QR Code to schedule a time to talk about todays special offers

Click button to schedule a time to talk about todays special offers

qrcode_ATT__Costco__Google__Scheduler
SCHEDULE A CALL
qrcode_ATT__Costco__Google__Scheduler

Ready to discover exclusive offers?

Scan the QR code to book a convenient consultation time with an AT&T specialist who can walk you through today’s best deals and customize a plan fits your lifestyle. Alternatively, you can schedule via by navigating to this link.

Let’s find the perfect AT&T solution together – at a time that works for you.

Call Today XXX-XXX-XXXX
Schedule

Questions?

Call our retailer VIP line

833-835-7755

Resources

Search by State

AT&T FAQs

Helpful Articles

Privacy Policy

Search for Local Retailer

© 2025 get.att.com. AT&T and all other AT&T marks are trademarks of AT&T, LLC. All other marks are the property of their respective owners.