Mad Mountain Wireless-Lakeport

01/04/2026

This deal is almost GONE! Come in soon, let us help you get the very best deals!

Lakeport location: we’re in the Grocery Outlet Shopping Center 707-900-5075

01/02/2026

Don’t miss out on these awesome Apple deals! Come into any Mad Mountain/AT&T location today. This is the last weekend for these deals.

 Lakeport location-707-900-5075
1265 South Main St. in the grocery outlet shopping center

01/01/2026

Thank you to each and every loyal customer for shopping local in 2025! Happy New Year, here’s to a fantastic 2026!

12/27/2025

Time to add some Ho-Ho-Ho to your shopping!

Check out deb.dean’s post.

12/27/2025

Did Santa miss a thing or two? We’ve got you covered with ALL the gifts on your wish list! Call or come in today! Well put the Ho-Ho-Ho back in your holiday!
Mad Mountain Wireless, Lakeport
We’re in the Grocery Outlet Shopping Center
707-900-5075
Let our elves help you out!

11/29/2025

We are open this weekend and so ready to take care of our customers! We have great promos, deals and Switch offers! Come on in and let us find the best deal for YOU!

1265 South Main St, Lakeport! 707-900-5075
We’re in the Grocery Outlet Shopping Center

11/27/2025

11/11/2025

From the bottom of our hearts, we express our heartfelt thanks! Your sacrifice has made a profound impact, and we are grateful for your dedication to protecting our families and communities. We are eternally grateful to our brave service men and women. The entire Mad Mountain team joins in extending our sincerest gratitude!

11/10/2025

It’s BAAAACK! 😎. AT&T has brought back the $800 Switcher Credit! Switch your phones number to AT&T and we will pay off your installment with your previous service provider, up to $800 per line!
This offer is for Consumers, Business accounts & FirstNet! Stackable with all our offers!

Come in today, visit ANY Mad Mountain location!

Lakeport: 707-900-5075
We’re located in the Grocery Outlet Shopping Center

11/10/2025

Happy 250th, US Marine Corps!

All Military, Vererans and Active, qualify for 25% off!

Thank you for your service!

10/25/2025

ATTENTION, Business Owners! Now is the time to switch to AT&T for your business!

Port a minimum of 5 lines to AT&T, bring your phone number and your own device and SAVE! For a limited time, minimum 5 Ported lines, just $10/mo per line! That’s right! Unbelievable! 5 lines on AT&T’s premier network for $50/month!! Unlimited Talk/Text/Data on the very best service provider!

Come into ANY Mad Mountain AT&T and let us assist you TODAY! We’re open 7 days a week, come in today!

Mad Mountain-Lakeport. 707-900-5075
Located in the Grocery Outlet Shopping Center

10/08/2025

Hurry! This offer ends tomorrow!

Switch to AT&T and AT&T will help you pay off your device with your previous carrier, up to $800 per line! (Maximum 10 lines per account) if you’ve been wanting to switch, now is the time!

We also have great promotions for First Responders, customers that are 55+ & some WOW programs for businesses!

Come into ANY Mad Mountain AT&T for more info!
Lakeport: 1265 South Main St. (in the Grocery Outlet Shopping Center)

707-900-5075