4SIWI

4SIWI 4SIWI, LLC is one of the last remaining LOCAL Internet and telephone providers in Southern Illinois.

Established in 2007 and offering a variety of services including telephone, internet, and IT Services. For Southern Illinois Wireless Internet or 4SIWI,LLC is an internet service provider serving communities all over Southern Illinois. Primary focus of 4SIWI is to bring reliable High Speed Wireless Internet to areas that don't currently have access to broadband through conventional carriers like D

SL or cable. 4SIWI also operates a reliable Fiber Optic Internet system serving businesses in Marion. Computer repair, IT outsourcing, and wireless construction are also among the many services 4SIWI currently offers to businesses and residents in Southern Illinois. In 2007 the business was formed as a family endeavor and continues to this day to be family owned and operated.

Deals for the week...
06/05/2026

Deals for the week...

Freedom Has A Price, and today we remember the brave men and woman who paid it. Have a safe and happy Memorial day. Our ...
05/25/2026

Freedom Has A Price, and today we remember the brave men and woman who paid it.
Have a safe and happy Memorial day. Our offices will be closed today.

Free Tech Help!! Appointments Available Now.
05/22/2026

Free Tech Help!! Appointments Available Now.

Congratulations to 4SIWI's Isaac Tresso on his graduation from FCHS today!! We look forward to seeing what the next chap...
05/21/2026

Congratulations to 4SIWI's Isaac Tresso on his graduation from FCHS today!! We look forward to seeing what the next chapter brings you!

We had a customer who DESPERATELY needed the files off of a broken thumb drive. We had to really think outside the box h...
05/18/2026

We had a customer who DESPERATELY needed the files off of a broken thumb drive. We had to really think outside the box here, but managed to recover 100% of their files.
Remember, the first line of defense against data loss is a solid backup routine. Let 4SIWI get your home or business backing up today
(618) 997-7494

05/10/2026

UPDATE:
Maintenance work complete. All services including internet, telephone, and hosting services should be working as expected. We are testing 911 service now to ensure emergency calls will be routed properly.
EMERGENCY MAINTENANCE!
We will be performing emergency maintenance on our network CORE that will affect ALL 4SIWI services at Midnight Sunday (5/10)
During this time all services will be down including telephone and internet.

Call now to connect with business.

Special Mothers Day Pricing! Feel the peace of mind knowing your property is always under vigilant protection, thanks t...
05/01/2026

Special Mothers Day Pricing! Feel the peace of mind knowing your property is always under vigilant protection, thanks to cutting-edge technology at your fingertips. Rest assured, day or night, rain or shine, your world is secure.

Coming Soon!!! This deal will sell out fast...
04/29/2026

Coming Soon!!! This deal will sell out fast...

Weather have you worried... Get Local On Air TV Today
04/27/2026

Weather have you worried... Get Local On Air TV Today

Address

3307 W Commercial Road
Marion, IL
62959

Opening Hours

Monday 9am - 8pm
Tuesday 9am - 8pm
Wednesday 9am - 8pm
Thursday 9am - 8pm
Friday 9am - 8pm
Saturday 10am - 2pm

Telephone

+16189977494

Website

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