+15738749650, Payphone at University of Missouri, Columbia MO US

in Memorial Union North near the bathrooms and Starbucks, the building is open until midnight when classes are in session, busiest during the day, there's usually a few people studying in the evening until it closes at midnight, they usually just take it off the hook if you keep calling but someone might answer.

Big thanks to NOMADCOWATBK for this one.