4SIWI

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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 DSL 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.

Proud sponsor of Redbird sports! The Birds Nest
09/26/2026

Proud sponsor of Redbird sports!
The Birds Nest

09/12/2026

We are experiencing an issue with our telephone switch. This is affecting ALL 4siwi telephone services including our office lines.
Working as fast as we can.

Call now to connect with business.

https://www.facebook.com/share/p/19G1wCFfej/
09/12/2026

https://www.facebook.com/share/p/19G1wCFfej/

🖥️🖨️🎮 SPONSOR SPOTLIGHT: 4SIWI 📡📱💻

Gamma Upsilon Chapter of Delta Theta Tau Sorority is so grateful to 4SIWI for supporting our Dames & Dudes Blingo fundraiser!

Your generosity helps us continue our tradition of giving back to our community through scholarships and support of the many charitable organizations and causes we proudly serve throughout the year.

Thank you, 4SIWI, for supporting Gamma Upsilon and helping us make a difference in our community! 💚🤍🌹

Together, we make a difference!

Outage resolved Friday night at 10:30pMASSIVE OUTAGE IN MASSAC CO: We are aware of an issue affecting multiple customers...
09/11/2026

Outage resolved Friday night at 10:30p

MASSIVE OUTAGE IN MASSAC CO: We are aware of an issue affecting multiple customers in our Metropolis and Brookport networks in the wake of last nights storms. The damage is significant and our best estimate for restoration is mid-day Monday for all customers. If internet is critical to your plans please make alternative arrangements as our restoration efforts continue.

Let's play a game. $10 reward. Why is this a scam? Winner will be picked at random
09/11/2026

Let's play a game. $10 reward. Why is this a scam? Winner will be picked at random

08/28/2026
I like waking up to this... Kudos Isaac
08/14/2026

I like waking up to this... Kudos Isaac

08/10/2026

The average Frontier Residential phone bill for a single line is $71.95 a month after taxes in Illinois.
I just quoted internet and telephone for $74.95 to a customer through 4SIWI. Give us a call and I bet we can save your home or business $$$ too.
(618) 997 7494

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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