Its network coverage will provide free web browsing on 26 wireless access points to any MCG visitors with a WiFi-capable notebook, device or mobile phone.
This includes access for players, staff, administrators, media, corporate clients and the general public.
All visitors to the wireless service will access the facility via an Internode and MCG co-branded landing page.
The MCG hosts approximately 50 AFL games per year, including finals. During 2008, it had more than three million visitors to sporting and other events.
"This partnership with Internode has helped us to improve the services we offer and enhance the experience for visitors to the MCG," said Lisa Trainor general manager Commercial Operations MCC.
"We have worked collaboratively with Internode to ensure a robust WiFi offering is widely available throughout the venue.
"It helps the MCG remain a destination of choice, not just for visitors to attend sporting events and concerts, but also as a valuable tool for the many businesses and corporate guests who use the WiFi service on other days throughout the year."
Daryl Knight national sales manager for Internode said the MCG wireless network would continue to build the Internode brand in Victoria.
"By introducing Internode into the world's greatest sporting arena, we expect to raise the profile of Internode and the services we offer to Home, Business and Corporate users," he said.
"More than three million people each year, including sporting fanatics and business leaders from Victoria and across Australia, will now have the opportunity to experience Internode - for free."