Loading view. There were no results found. There were no results found. Regency Conference Center Events Venues Regency Conference Center 400 Regency Park O'Fallon, IL 62269 United States Get Directions 815.875.2999 https://cvent.me/aQMDeV Events at this venue Today Upcoming Upcoming Select date. Previous Events Today Next Events Subscribe to calendar Google Calendar iCalendar Outlook 365 Outlook Live Export .ics file Export Outlook .ics file