In Celebration of the following events in Omaha, Cox Communications will be opening up their city wide Wi-Fi to everyone for free during the whole month of June 2017.
Reportedly being a Cox customer will NOT be required.
.
Omaha will be hosting the College World Series
http://www.box-officetickets.com/NE/Omaha/TD-Ameritrade-Park-Omaha-Tickets/College-World-Series/v-8819/p-189?&gclid=CNnwxMruhtQCFQyHaQodC_EPNg
http://www.ncaa.com/championships/baseball/d1/schedule

and have a separate big event locally The Taste of Omaha.
https://www.facebook.com/Taste-of-Omaha-105007849543673/
http://showofficeonline.com/TasteHome/

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https://www.cox.com/residential/internet/wifi-hotspots.html
Best information that I can get for now is select on your cell phone, tablet or PC:

1. CoxWiFi or CoxWiFi_premium.
2. Launch your Internet browser.
3. You should get a request for your phone number. Cox should text you a code to use. The Wi-Fi is a secured system. not an open system
   

As June gets closer, I will edit this when better information becomes available.

Source for above: Cox Internet Support team.