3-1-1

A non-emergency telephone number 3-1-1 is a special N-1-1 telephone number in many communities in Canada and the United States that provides quick, easy-to-remember access to non-emergency municipal services or a Citizen Service Center. Dialing this number allows city residents (only in certain cities) to obtain important non-emergency services through a central, all-purpose phone number quickly and effectively.

3-1-1 is intended in part to divert routine inquiries and non-urgent community concerns from the emergency 9-1-1 number. A promotional website for 3-1-1 in Akron described the distinction as follows: "Burning building? Call 9-1-1. Burning Question? Call 3-1-1."

Many cities take 3-1-1 comments through internet or smartphone interfaces. On March 3, 2010, US Federal Chief Information Officer Vivek Kundra announced the creation of a uniform "Open 311" API for these services. The online 311 service SeeClickFix is available across the United States.