Where do you live which doesn't have one? 311 is written on most public works fixtures in my town, Vancouver, for telling the city if they're broken, and I assumed it was North America-wide.
Seattle doesn't have a 311 phone service. But they do have a Find It Fix It app. It's 2018 not 1988, why don't more cities have an app?
http://www.seattle.gov/customer-service-bureau/find-it-fix-i...